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<h3 id="19-删除链表的倒数第N个节点"><a href="#19-删除链表的倒数第N个节点" class="headerlink" title="19. 删除链表的倒数第N个节点"></a>19. 删除链表的倒数第N个节点</h3><blockquote>
<p>给定一个链表,删除链表的倒数第 <em>n</em> 个节点,并且返回链表的头结点。</p>
<p>给定一个链表: 1->2->3->4->5, 和 n = 2.</p>
<p>当删除了倒数第二个节点后,链表变为 1->2->3->5.</p>
</blockquote>
<ul>
<li><p>两次遍历,单指针,第一遍测出链表总长度,第二遍遍历到要删除的节点位置</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">public</span> ListNode <span class="title">removeNthFromEnd</span><span class="params">(ListNode head, <span class="keyword">int</span> n)</span> </span>{</span><br><span class="line"> ListNode dummy = <span class="keyword">new</span> ListNode(<span class="number">0</span>);</span><br><span class="line"> dummy.next = head;</span><br><span class="line"> <span class="keyword">int</span> length = <span class="number">0</span>;</span><br><span class="line"> ListNode first = head;</span><br><span class="line"> <span class="keyword">while</span>(first != <span class="keyword">null</span>){ <span class="comment">//得出链表长度</span></span><br><span class="line"> length++; </span><br><span class="line"> first=first.next;</span><br><span class="line"> }</span><br><span class="line"> length -= n; <span class="comment">//链表长度减去n</span></span><br><span class="line"> first = dummy;</span><br><span class="line"> <span class="keyword">while</span>(length><span class="number">0</span>){<span class="comment">//遍历到刚好要删除的节点</span></span><br><span class="line"> length--;</span><br><span class="line"> first = first.next;</span><br><span class="line"> }</span><br><span class="line"> first.next = first.next.next;<span class="comment">//删除节点</span></span><br><span class="line"> <span class="keyword">return</span> dummy.next; <span class="comment">//返回头节点</span></span><br><span class="line">}</span><br></pre></td></tr></table></figure>
</li>
</ul>
<ul>
<li><p>一次遍历,双指针,两个指针保持n的距离,遍历到末尾即可</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line">ListNode pre = <span class="keyword">new</span> ListNode(<span class="number">0</span>);</span><br><span class="line"> pre.next = head;</span><br><span class="line"> ListNode end = pre;</span><br><span class="line"> ListNode start = pre;</span><br><span class="line"> <span class="keyword">int</span> length = <span class="number">0</span>;</span><br><span class="line"> <span class="keyword">while</span>(n><span class="number">0</span>){ <span class="comment">//先让end,先走n步</span></span><br><span class="line"> n--;</span><br><span class="line"> end = end.next;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">while</span>(end.next != <span class="keyword">null</span>){ <span class="comment">//一起走,走到末尾</span></span><br><span class="line"> start = start.next;</span><br><span class="line"> end = end.next;</span><br><span class="line"> }</span><br><span class="line"> start.next = start.next.next;<span class="comment">//删除节点</span></span><br><span class="line"> <span class="keyword">return</span> pre.next;</span><br></pre></td></tr></table></figure>
</li>
<li><p>递归遍历</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> 递归方法</span></span><br><span class="line"><span class="comment"> */</span> </span><br><span class="line"> <span class="keyword">int</span> i;</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">removeNthFromEnd</span><span class="params">(ListNode head, <span class="keyword">int</span> n)</span> </span>{ </span><br><span class="line"> <span class="keyword">if</span> (head == <span class="keyword">null</span>) {</span><br><span class="line"> i = <span class="number">0</span>;</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line"> }</span><br><span class="line"> </span><br><span class="line"> head.next = removeNthFromEnd(head.next, n);</span><br><span class="line"> i++; <span class="comment">// 归的过程中会按倒序依次增加序号</span></span><br><span class="line"> <span class="keyword">if</span> (i == n) <span class="keyword">return</span> head.next; </span><br><span class="line"> <span class="comment">// 此时的节点为待删除节点,返回其next节点跨过待删除节点,达到删除节点的目的</span></span><br><span class="line"> <span class="keyword">return</span> head; <span class="comment">// 其他情况下正常返回本节点</span></span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="23-合并K个排序链表"><a href="#23-合并K个排序链表" class="headerlink" title="23 合并K个排序链表"></a>23 合并K个排序链表</h3><blockquote>
<p>合并 <em>k</em> 个排序链表,返回合并后的排序链表。请分析和描述算法的复杂度。</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">> 输入:</span><br><span class="line">> [</span><br><span class="line">> 1->4->5,</span><br><span class="line">> 1->3->4,</span><br><span class="line">> 2->6</span><br><span class="line">> ]</span><br><span class="line">> 输出: 1->1->2->3->4->4->5->6</span><br><span class="line">></span><br></pre></td></tr></table></figure>
</blockquote>
<ul>
<li><p>利用两两合并的,利用遍历将k个逐渐合并</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Solution</span> </span>{</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">mergeKLists</span><span class="params">(ListNode[] lists)</span> </span>{</span><br><span class="line"> ListNode res = <span class="keyword">null</span>;</span><br><span class="line"> <span class="keyword">for</span> (ListNode list: lists) {</span><br><span class="line"> res = <span class="function">merge2Lis <span class="title">ts</span><span class="params">(res, list)</span></span>;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> res;</span><br><span class="line"> }</span><br><span class="line">}</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">mergeTwoLists</span><span class="params">(ListNode l1, ListNode l2)</span> </span>{ <span class="comment">//合并两个</span></span><br><span class="line"> ListNode l3 = <span class="keyword">new</span> ListNode(<span class="number">0</span>);</span><br><span class="line"> ListNode head = l3;</span><br><span class="line"> <span class="keyword">while</span>(l1 != <span class="keyword">null</span> && l2!=<span class="keyword">null</span>){</span><br><span class="line"> <span class="keyword">if</span>(l1.val > l2.val){</span><br><span class="line"> l3.next = l2;</span><br><span class="line"> l3 = l3.next;</span><br><span class="line"> l2 = l2.next;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span>{</span><br><span class="line"> l3.next = l1;</span><br><span class="line"> l3 = l3.next;</span><br><span class="line"> l1 = l1.next;</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">if</span>(l1 == <span class="keyword">null</span>){</span><br><span class="line"> l3.next = l2;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">if</span>(l2 == <span class="keyword">null</span>){</span><br><span class="line"> l3.next = l1;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> head.next;</span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
</li>
<li><p>同样利用两两合并,同时利用分治算法</p>
<p><img src="https://pic.leetcode-cn.com/88d261465f1f21288dd23cef2f059297f5d053fc19805458a47ae1b05f3c0703-6.jpg" alt></p>
</li>
</ul>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">public</span> ListNode <span class="title">mergeKLists</span><span class="params">(ListNode[] lists)</span> </span>{</span><br><span class="line"> <span class="keyword">if</span>(lists==<span class="keyword">null</span> || lists.length==<span class="number">0</span>) {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> helper(lists,<span class="number">0</span>,lists.length-<span class="number">1</span>);</span><br><span class="line"> }</span><br><span class="line"> </span><br><span class="line"> <span class="comment">//通过mid将数组一分为二,并不断缩小规模,当规模为1时返回并开始合并</span></span><br><span class="line"> <span class="comment">//通过合并两个链表,不断增大其规模,整体看就是不断缩小-最后不断扩大的过程</span></span><br><span class="line"> <span class="function"><span class="keyword">private</span> ListNode <span class="title">helper</span><span class="params">(ListNode[] lists, <span class="keyword">int</span> begin, <span class="keyword">int</span> end)</span> </span>{</span><br><span class="line"> <span class="keyword">if</span>(begin==end) {<span class="comment">//递归到底了</span></span><br><span class="line"> <span class="keyword">return</span> lists[begin];</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">int</span> mid = begin+(end-begin)/<span class="number">2</span>;</span><br><span class="line"> ListNode left = helper(lists,begin,mid);<span class="comment">//得到左边部分</span></span><br><span class="line"> ListNode right = helper(lists,mid+<span class="number">1</span>,end);<span class="comment">//得到右边部分</span></span><br><span class="line"> <span class="keyword">return</span> merge(left,right);<span class="comment">//合并左右,并返回给上一级</span></span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
<ul>
<li><p>利用队列排序</p>
<p><img src="https://pic.leetcode-cn.com/1d4fb6358f39ee7b4ad0b75119352a0fba44c550af0c310d594ae529717cbf3d-5.gif" alt></p>
</li>
</ul>
<h3 id="24-两两交换链表中的节点"><a href="#24-两两交换链表中的节点" class="headerlink" title="24. 两两交换链表中的节点"></a><a href="https://leetcode-cn.com/problems/swap-nodes-in-pairs/" target="_blank" rel="noopener">24. 两两交换链表中的节点</a></h3><blockquote>
<p>给定一个链表,两两交换其中相邻的节点,并返回交换后的链表。</p>
<p>你不能只是单纯的改变节点内部的值,而是需要实际的进行节点交换。</p>
<p>示例:</p>
<p>给定 1->2->3->4, 你应该返回 2->1->4->3.</p>
</blockquote>
<ul>
<li><p>迭代</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Solution</span> </span>{</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">swapPairs</span><span class="params">(ListNode head)</span> </span>{</span><br><span class="line"> ListNode dummy = <span class="keyword">new</span> ListNode(-<span class="number">1</span>);</span><br><span class="line"> dummy.next = head;</span><br><span class="line"> ListNode prevNode = dummy;</span><br><span class="line"> <span class="keyword">while</span>((head != <span class="keyword">null</span>) && (head.next != <span class="keyword">null</span>)){</span><br><span class="line"> ListNode firstNode = head; <span class="comment">//拿到第一个节点</span></span><br><span class="line"> ListNode secondNode = head.next;<span class="comment">//拿到第二个节点</span></span><br><span class="line"></span><br><span class="line"> prevNode.next = secondNode;<span class="comment">//将第二个节点置前</span></span><br><span class="line"> firstNode.next = secondNode.next; <span class="comment">//交换位置</span></span><br><span class="line"> secondNode.next = firstNode;</span><br><span class="line"></span><br><span class="line"> prevNode = firstNode;<span class="comment">//指向第二个位置</span></span><br><span class="line"> head = firstNode.next;<span class="comment">//移动两格</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> dummy.next;</span><br><span class="line"> }</span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
</li>
<li><p>递归</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">public</span> ListNode <span class="title">swapPairs</span><span class="params">(ListNode head)</span> </span>{</span><br><span class="line"> <span class="comment">// If the list has no node or has only one node left.</span></span><br><span class="line"> <span class="keyword">if</span> ((head == <span class="keyword">null</span>) || (head.next == <span class="keyword">null</span>)) {<span class="comment">//递归到底</span></span><br><span class="line"> <span class="keyword">return</span> head; </span><br><span class="line"> }</span><br><span class="line"> </span><br><span class="line"> <span class="comment">// Nodes to be swapped</span></span><br><span class="line"> ListNode firstNode = head;<span class="comment">//第一个节点</span></span><br><span class="line"> ListNode secondNode = head.next;<span class="comment">//第二个节点</span></span><br><span class="line"> </span><br><span class="line"> <span class="comment">// Swapping </span></span><br><span class="line"> firstNode.next = swapPairs(secondNode.next);</span><br><span class="line"> secondNode.next = firstNode;</span><br><span class="line"> </span><br><span class="line"> <span class="comment">// Now the head is the second node</span></span><br><span class="line"> <span class="keyword">return</span> secondNode;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="61-旋转链表"><a href="#61-旋转链表" class="headerlink" title="61. 旋转链表"></a><a href="https://leetcode-cn.com/problems/rotate-list/" target="_blank" rel="noopener">61. 旋转链表</a></h3><blockquote>
<p>给定一个链表,旋转链表,将链表每个节点向右移动 k 个位置,其中 k 是非负数。</p>
<p>示例 1:</p>
<p>输入: 1->2->3->4->5->NULL, k = 2<br>输出: 4->5->1->2->3->NULL<br>解释:<br>向右旋转 1 步: 5->1->2->3->4->NULL<br>向右旋转 2 步: 4->5->1->2->3->NULL<br>示例 2:</p>
<p>输入: 0->1->2->NULL, k = 4<br>输出: 2->0->1->NULL<br>解释:<br>向右旋转 1 步: 2->0->1->NULL<br>向右旋转 2 步: 1->2->0->NULL<br>向右旋转 3 步: 0->1->2->NULL</p>
<p>向右旋转 4 步: 2->0->1->NULL</p>
</blockquote>
<ul>
<li>先遍历总长度length</li>
<li>判断k大于length长度,求余</li>
<li>将倒数K位拼接到队头</li>
</ul>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">public</span> ListNode <span class="title">rotateRight</span><span class="params">(ListNode head, <span class="keyword">int</span> k)</span> </span>{</span><br><span class="line"> <span class="keyword">if</span> (head == <span class="keyword">null</span> ){</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">if</span>(k <= <span class="number">0</span>){</span><br><span class="line"> <span class="keyword">return</span> head;</span><br><span class="line"> }</span><br><span class="line"> </span><br><span class="line"> <span class="keyword">int</span> length = <span class="number">0</span>;</span><br><span class="line"> ListNode first = head;</span><br><span class="line"> <span class="keyword">while</span>(first != <span class="keyword">null</span>){ <span class="comment">//得出链表长度</span></span><br><span class="line"> length++; </span><br><span class="line"> first=first.next;</span><br><span class="line"> } </span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span>(k>=length){<span class="comment">//k比链表长度大</span></span><br><span class="line"> k = k%length;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">if</span>(k == <span class="number">0</span>){ <span class="comment">//k为length的倍数,恰好不用旋转</span></span><br><span class="line"> <span class="keyword">return</span> head; </span><br><span class="line"> }</span><br><span class="line"><span class="keyword">int</span> flag = length - k -<span class="number">1</span>; <span class="comment">//倒数的K+1</span></span><br><span class="line">ListNode end = head; <span class="comment">//指向链表头部</span></span><br><span class="line"> <span class="keyword">while</span>(flag><span class="number">0</span>){</span><br><span class="line"> end = end.next;</span><br><span class="line"> flag--;</span><br><span class="line">}</span><br><span class="line">ListNode newHead = end.next;</span><br><span class="line">end.next = <span class="keyword">null</span>;<span class="comment">//末尾指向空</span></span><br><span class="line"> </span><br><span class="line">first = newHead;</span><br><span class="line"><span class="keyword">while</span>(first.next != <span class="keyword">null</span>){ <span class="comment">//遍历到末尾</span></span><br><span class="line"> first = first.next; </span><br><span class="line">}</span><br><span class="line">first.next = head; <span class="comment">//将末尾拼上队头</span></span><br><span class="line"><span class="keyword">return</span> newHead;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h3 id="83-删除排序链表中的重复元素"><a href="#83-删除排序链表中的重复元素" class="headerlink" title="83. 删除排序链表中的重复元素"></a><a href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list/" target="_blank" rel="noopener">83. 删除排序链表中的重复元素</a></h3><blockquote>
<p>给定一个排序链表,删除所有重复的元素,使得每个元素只出现一次。</p>
<p>示例 1:</p>
<p>输入: 1->1->2<br>输出: 1->2<br>示例 2:</p>
<p>输入: 1->1->2->3->3<br>输出: 1->2->3</p>
</blockquote>
<ul>
<li><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Solution</span> </span>{</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">deleteDuplicates</span><span class="params">(ListNode head)</span> </span>{</span><br><span class="line"> ListNode current = head;</span><br><span class="line"> <span class="keyword">while</span> (current != <span class="keyword">null</span> && current.next != <span class="keyword">null</span>) {</span><br><span class="line"> <span class="keyword">if</span> (current.next.val == current.val) {</span><br><span class="line"> current.next = current.next.next;<span class="comment">//跳过</span></span><br><span class="line"> } <span class="keyword">else</span> { </span><br><span class="line"> current = current.next;<span class="comment">//正常遍历</span></span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> head;</span><br><span class="line"></span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="82-删除排序链表中的重复元素-II"><a href="#82-删除排序链表中的重复元素-II" class="headerlink" title="82. 删除排序链表中的重复元素 II"></a><a href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii/" target="_blank" rel="noopener">82. 删除排序链表中的重复元素 II</a></h3><blockquote>
<p>给定一个排序链表,删除所有含有重复数字的节点,只保留原始链表中 没有重复出现 的数字。</p>
<p>示例 1:</p>
<p>输入: 1->2->3->3->4->4->5<br>输出: 1->2->5<br>示例 2:</p>
<p>输入: 1->1->1->2->3<br>输出: 2->3</p>
</blockquote>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Solution</span> </span>{</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">deleteDuplicates</span><span class="params">(ListNode head)</span> </span>{</span><br><span class="line"> <span class="keyword">if</span>(head == <span class="keyword">null</span>) <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line"> ListNode dummy = <span class="keyword">new</span> ListNode(-<span class="number">1000</span>);</span><br><span class="line"> dummy.next = head;</span><br><span class="line"> ListNode slow = dummy;</span><br><span class="line"> ListNode fast = dummy.next;</span><br><span class="line"> <span class="keyword">while</span> (fast != <span class="keyword">null</span>) {<span class="comment">//遍历数组</span></span><br><span class="line"> <span class="keyword">while</span> (fast.next != <span class="keyword">null</span> && fast.val == fast.next.val) </span><br><span class="line"> fast = fast.next; <span class="comment">//跳到相同数字的最后一个</span></span><br><span class="line"> <span class="keyword">if</span> (slow.next == fast) <span class="comment">//无相同数字情况下</span></span><br><span class="line"> slow = slow.next; </span><br><span class="line"> <span class="keyword">else</span> <span class="comment">//相同数字,要跳过</span></span><br><span class="line"> slow.next = fast.next; <span class="comment">//跳到下一个</span></span><br><span class="line"> fast = fast.next;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> dummy.next; </span><br><span class="line"> } </span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h3 id="86-分隔链表"><a href="#86-分隔链表" class="headerlink" title="86. 分隔链表"></a><a href="https://leetcode-cn.com/problems/partition-list/" target="_blank" rel="noopener">86. 分隔链表</a></h3><blockquote>
<p>给定一个链表和一个特定值 x,对链表进行分隔,使得所有小于 x 的节点都在大于或等于 x 的节点之前。</p>
<p>你应当保留两个分区中每个节点的初始相对位置。</p>
<p>示例:</p>
<p>输入: head = 1->4->3->2->5->2, x = 3<br>输出: 1->2->2->4->3->====5====</p>
</blockquote>
<h3 id="206-反转链表"><a href="#206-反转链表" class="headerlink" title="206. 反转链表"></a><a href="https://leetcode-cn.com/problems/reverse-linked-list/" target="_blank" rel="noopener">206. 反转链表</a></h3><blockquote>
<p>反转一个单链表。</p>
<p><strong>示例:</strong></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">> 输入: 1->2->3->4->5->NULL</span><br><span class="line">> 输出: 5->4->3->2->1->NULL</span><br><span class="line">></span><br></pre></td></tr></table></figure>
</blockquote>
<blockquote>
</blockquote>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Solution</span> </span>{</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">reverseList</span><span class="params">(ListNode head)</span> </span>{</span><br><span class="line"><span class="comment">//递归终止条件是当前为空,或者下一个节点为空</span></span><br><span class="line"> <span class="keyword">if</span>(head==<span class="keyword">null</span> || head.next==<span class="keyword">null</span>) {</span><br><span class="line"> <span class="keyword">return</span> head;</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">//这里的cur就是最后一个节点</span></span><br><span class="line"> ListNode cur = reverseList(head.next);</span><br><span class="line"> head.next.next = head;<span class="comment">//设置转向</span></span><br><span class="line"> <span class="comment">//防止链表循环,断开转向后的next</span></span><br><span class="line"> head.next = <span class="keyword">null</span>;</span><br><span class="line"> <span class="comment">//每层递归函数都返回cur,也就是最后一个节点</span></span><br><span class="line"> <span class="keyword">return</span> cur;</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h3 id="92-反转链表-II"><a href="#92-反转链表-II" class="headerlink" title="92. 反转链表 II"></a><a href="https://leetcode-cn.com/problems/reverse-linked-list-ii/" target="_blank" rel="noopener">92. 反转链表 II</a></h3><blockquote>
<p>反转从位置 m 到 n 的链表。请使用一趟扫描完成反转。</p>
<p>说明:<br>1 ≤ m ≤ n ≤ 链表长度。</p>
<p>示例:</p>
<p>输入: 1->2->3->4->5->NULL, m = 2, n = 4<br>输出: 1->4->3->2->5->NULL</p>
</blockquote>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Solution</span> </span>{</span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">reverseBetween</span><span class="params">(ListNode head, <span class="keyword">int</span> m, <span class="keyword">int</span> n)</span> </span>{</span><br><span class="line"> <span class="comment">// base case</span></span><br><span class="line"> <span class="keyword">if</span> (m == <span class="number">1</span>) {</span><br><span class="line"> <span class="keyword">return</span> reverseN(head, n);</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">// 前进到反转的起点触发 base case</span></span><br><span class="line"> head.next = reverseBetween(head.next, m - <span class="number">1</span>, n - <span class="number">1</span>);</span><br><span class="line"> <span class="keyword">return</span> head;</span><br><span class="line"> }</span><br><span class="line"> ListNode successor = <span class="keyword">null</span>; <span class="comment">// 后驱节点</span></span><br><span class="line"> <span class="function"><span class="keyword">public</span> ListNode <span class="title">reverseN</span><span class="params">(ListNode head, <span class="keyword">int</span> n)</span></span>{</span><br><span class="line"> <span class="keyword">if</span> (n == <span class="number">1</span>) { </span><br><span class="line"> <span class="comment">// 记录第 n + 1 个节点</span></span><br><span class="line"> successor = head.next;</span><br><span class="line"> <span class="keyword">return</span> head;</span><br><span class="line"> } </span><br><span class="line"> <span class="comment">// 以 head.next 为起点,需要反转前 n - 1 个节点</span></span><br><span class="line"> ListNode last = reverseN(head.next, n - <span class="number">1</span>);</span><br><span class="line"></span><br><span class="line"> head.next.next = head;</span><br><span class="line"> <span class="comment">// 让反转之后的 head 节点和后面的节点连起来</span></span><br><span class="line"> head.next = successor;</span><br><span class="line"> <span class="keyword">return</span> last;</span><br><span class="line"> </span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
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<h2 id="整合SSM1"><a href="#整合SSM1" class="headerlink" title="整合SSM1"></a>整合SSM1</h2><h3 id="1-导入依赖"><a href="#1-导入依赖" class="headerlink" title="1 导入依赖"></a>1 导入依赖</h3><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"><!--依赖 junit、数据库驱动、连接池、servlet、jsp、mybatis --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependencies</span>></span></span><br><span class="line"> <span class="comment"><!--Junit--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>junit<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>junit<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>4.12<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="comment"><!--数据库驱动--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>mysql<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mysql-connector-java<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>5.1.47<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="comment"><!-- 数据库连接池 --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>com.mchange<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>c3p0<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>0.9.5.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Servlet - JSP --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>servlet-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.5<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet.jsp<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jsp-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jstl<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>1.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Mybatis--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.mybatis<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mybatis<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>3.5.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.mybatis<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mybatis-spring<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.0.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Spring--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-webmvc<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>5.1.9.RELEASE<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-jdbc<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>5.1.9.RELEASE<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="comment"><!--lombok--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.projectlombok<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>lombok<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>1.18.10<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependencies</span>></span></span><br><span class="line"> <span class="comment"><!--静态资源导出--></span></span><br><span class="line"> <span class="tag"><<span class="name">build</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">resources</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">directory</span>></span>src/main/java<span class="tag"></<span class="name">directory</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.properties<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.xml<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filtering</span>></span>false<span class="tag"></<span class="name">filtering</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">directory</span>></span>src/main/resources<span class="tag"></<span class="name">directory</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.properties<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.xml<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filtering</span>></span>false<span class="tag"></<span class="name">filtering</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">resources</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">build</span>></span></span><br></pre></td></tr></table></figure>
<h3 id="2-IDEA连接数据库"><a href="#2-IDEA连接数据库" class="headerlink" title="2 IDEA连接数据库"></a>2 IDEA连接数据库</h3><p>URL: jdbc:mysql://localhost:3306?serverTimezone=GMT</p>
<h3 id="3-建立文件"><a href="#3-建立文件" class="headerlink" title="3 建立文件"></a>3 建立文件</h3><ul>
<li><p>com.kuang.pojo</p>
</li>
<li><p>com.kuang.dao</p>
</li>
<li><p>com.kuang.service</p>
</li>
<li><p>com.kuang.controller</p>
</li>
<li><p>mybatis-config.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8" ?></span></span><br><span class="line"><span class="meta"><!DOCTYPE configuration</span></span><br><span class="line"><span class="meta"> PUBLIC "-//mybatis.org//DTD Config 3.0//EN"</span></span><br><span class="line"><span class="meta"> "http://mybatis.org/dtd/mybatis-3-config.dtd"></span></span><br><span class="line"><span class="tag"><<span class="name">configuration</span>></span></span><br><span class="line"> <span class="comment"><!--配置数据源,交给Spring去做--></span></span><br><span class="line"> <span class="tag"><<span class="name">typeAliases</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">package</span> <span class="attr">name</span>=<span class="string">"com.lin.pojo"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">typeAliases</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">mappers</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">mapper</span> <span class="attr">class</span>=<span class="string">"com.lin.dao.BookMapper"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">mappers</span>></span></span><br><span class="line"><span class="tag"></<span class="name">configuration</span>></span></span><br></pre></td></tr></table></figure>
</li>
<li><p>applicationContext.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://www.springframework.org/schema/beans</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans/spring-beans.xsd"</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">beans</span>></span></span><br></pre></td></tr></table></figure>
</li>
<li><p><strong>database.properties</strong></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">jdbc.driver=com.mysql.jdbc.Driver</span><br><span class="line">jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&useUnicode=true&characterEncoding=utf8</span><br><span class="line">jdbc.username=root</span><br><span class="line">jdbc.password=1234</span><br></pre></td></tr></table></figure>
</li>
<li><p>spring-dao.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:context</span>=<span class="string">"http://www.springframework.org/schema/context"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://www.springframework.org/schema/beans</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"</span>></span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 配置整合mybatis --></span></span><br><span class="line"> <span class="comment"><!-- 1.关联数据库文件 --></span></span><br><span class="line"> <span class="tag"><<span class="name">context:property-placeholder</span> <span class="attr">location</span>=<span class="string">"classpath:database.properties"</span>/></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 2.数据库连接池 --></span></span><br><span class="line"> <span class="comment"><!--数据库连接池</span></span><br><span class="line"><span class="comment"> dbcp 半自动化操作 不能自动连接</span></span><br><span class="line"><span class="comment"> c3p0 自动化操作(自动的加载配置文件 并且设置到对象里面)</span></span><br><span class="line"><span class="comment"> --></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"dataSource"</span> <span class="attr">class</span>=<span class="string">"com.mchange.v2.c3p0.ComboPooledDataSource"</span>></span></span><br><span class="line"> <span class="comment"><!-- 配置连接池属性 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"driverClass"</span> <span class="attr">value</span>=<span class="string">"${jdbc.driver}"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"jdbcUrl"</span> <span class="attr">value</span>=<span class="string">"${jdbc.url}"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"user"</span> <span class="attr">value</span>=<span class="string">"${jdbc.username}"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"password"</span> <span class="attr">value</span>=<span class="string">"${jdbc.password}"</span>/></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- c3p0连接池的私有属性 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"maxPoolSize"</span> <span class="attr">value</span>=<span class="string">"30"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"minPoolSize"</span> <span class="attr">value</span>=<span class="string">"10"</span>/></span></span><br><span class="line"> <span class="comment"><!-- 关闭连接后不自动commit --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"autoCommitOnClose"</span> <span class="attr">value</span>=<span class="string">"false"</span>/></span></span><br><span class="line"> <span class="comment"><!-- 获取连接超时时间 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"checkoutTimeout"</span> <span class="attr">value</span>=<span class="string">"10000"</span>/></span></span><br><span class="line"> <span class="comment"><!-- 当获取连接失败重试次数 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"acquireRetryAttempts"</span> <span class="attr">value</span>=<span class="string">"2"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 3.配置SqlSessionFactory对象 --></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"sqlSessionFactory"</span> <span class="attr">class</span>=<span class="string">"org.mybatis.spring.SqlSessionFactoryBean"</span>></span></span><br><span class="line"> <span class="comment"><!-- 注入数据库连接池 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"dataSource"</span> <span class="attr">ref</span>=<span class="string">"dataSource"</span>/></span></span><br><span class="line"> <span class="comment"><!-- 配置MyBaties全局配置文件:mybatis-config.xml --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"configLocation"</span> <span class="attr">value</span>=<span class="string">"classpath:mybatis-config.xml"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 4.配置扫描Dao接口包,动态实现Dao接口注入到spring容器中 --></span></span><br><span class="line"> <span class="comment"><!--解释 :https://www.cnblogs.com/jpfss/p/7799806.html--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">class</span>=<span class="string">"org.mybatis.spring.mapper.MapperScannerConfigurer"</span>></span></span><br><span class="line"> <span class="comment"><!-- 注入sqlSessionFactory --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"sqlSessionFactoryBeanName"</span> <span class="attr">value</span>=<span class="string">"sqlSessionFactory"</span>/></span></span><br><span class="line"> <span class="comment"><!-- 给出需要扫描Dao接口包 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"basePackage"</span> <span class="attr">value</span>=<span class="string">"com.lin.dao"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">beans</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<ul>
<li><p>spring-service.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:context</span>=<span class="string">"http://www.springframework.org/schema/context"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://www.springframework.org/schema/beans</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans/spring-beans.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context/spring-context.xsd"</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 扫描service相关的bean --></span></span><br><span class="line"> <span class="tag"><<span class="name">context:component-scan</span> <span class="attr">base-package</span>=<span class="string">"com.lin.service"</span> /></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--BookServiceImpl注入到IOC容器中--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"BookServiceImpl"</span> <span class="attr">class</span>=<span class="string">"com.lin.service.BookServiceImpl"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"bookMapper"</span> <span class="attr">ref</span>=<span class="string">"bookMapper"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 配置事务管理器 --></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"transactionManager"</span> <span class="attr">class</span>=<span class="string">"org.springframework.jdbc.datasource.DataSourceTransactionManager"</span>></span></span><br><span class="line"> <span class="comment"><!-- 注入数据库连接池 --></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"dataSource"</span> <span class="attr">ref</span>=<span class="string">"dataSource"</span> /></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">beans</span>></span></span><br></pre></td></tr></table></figure>
</li>
<li><p>spring-mvc.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:context</span>=<span class="string">"http://www.springframework.org/schema/context"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:mvc</span>=<span class="string">"http://www.springframework.org/schema/mvc"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://www.springframework.org/schema/beans</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans/spring-beans.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context/spring-context.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/mvc</span></span></span><br><span class="line"><span class="tag"><span class="string"> https://www.springframework.org/schema/mvc/spring-mvc.xsd"</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 配置SpringMVC --></span></span><br><span class="line"> <span class="comment"><!-- 1.开启SpringMVC注解驱动 --></span></span><br><span class="line"> <span class="tag"><<span class="name">mvc:annotation-driven</span> /></span></span><br><span class="line"> <span class="comment"><!-- 2.静态资源默认servlet配置--></span></span><br><span class="line"> <span class="tag"><<span class="name">mvc:default-servlet-handler</span>/></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 3.配置jsp 显示ViewResolver视图解析器 --></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">class</span>=<span class="string">"org.springframework.web.servlet.view.InternalResourceViewResolver"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"viewClass"</span> <span class="attr">value</span>=<span class="string">"org.springframework.web.servlet.view.JstlView"</span> /></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"prefix"</span> <span class="attr">value</span>=<span class="string">"/WEB-INF/jsp/"</span> /></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"suffix"</span> <span class="attr">value</span>=<span class="string">".jsp"</span> /></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- 4.扫描web相关的bean --></span></span><br><span class="line"> <span class="tag"><<span class="name">context:component-scan</span> <span class="attr">base-package</span>=<span class="string">"com.lin.controller"</span> /></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">beans</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="4-设置为web项目"><a href="#4-设置为web项目" class="headerlink" title="4 设置为web项目"></a>4 设置为web项目</h3><ul>
<li><p>右键项目,Add Framework Support</p>
</li>
<li><p>web.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">web-app</span> <span class="attr">xmlns</span>=<span class="string">"http://xmlns.jcp.org/xml/ns/javaee"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">version</span>=<span class="string">"4.0"</span>></span></span><br><span class="line"> <span class="comment"><!--DispatcherServlet--></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-name</span>></span>DispatcherServlet<span class="tag"></<span class="name">servlet-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-class</span>></span>org.springframework.web.servlet.DispatcherServlet<span class="tag"></<span class="name">servlet-class</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-name</span>></span>contextConfigLocation<span class="tag"></<span class="name">param-name</span>></span></span><br><span class="line"> <span class="comment"><!--一定要注意:我们这里加载的是总的配置文件,之前被这里坑了!--></span></span><br><span class="line"> <span class="tag"><<span class="name">param-value</span>></span>classpath:applicationContext.xml<span class="tag"></<span class="name">param-value</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">load-on-startup</span>></span>1<span class="tag"></<span class="name">load-on-startup</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">servlet</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-mapping</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-name</span>></span>DispatcherServlet<span class="tag"></<span class="name">servlet-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">url-pattern</span>></span>/<span class="tag"></<span class="name">url-pattern</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">servlet-mapping</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--encodingFilter--></span></span><br><span class="line"> <span class="tag"><<span class="name">filter</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-name</span>></span>encodingFilter<span class="tag"></<span class="name">filter-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-class</span>></span></span><br><span class="line"> org.springframework.web.filter.CharacterEncodingFilter</span><br><span class="line"> <span class="tag"></<span class="name">filter-class</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-name</span>></span>encoding<span class="tag"></<span class="name">param-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-value</span>></span>utf-8<span class="tag"></<span class="name">param-value</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">filter</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-mapping</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-name</span>></span>encodingFilter<span class="tag"></<span class="name">filter-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">url-pattern</span>></span>/*<span class="tag"></<span class="name">url-pattern</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">filter-mapping</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Session过期时间--></span></span><br><span class="line"> <span class="tag"><<span class="name">session-config</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">session-timeout</span>></span>15<span class="tag"></<span class="name">session-timeout</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">session-config</span>></span></span><br><span class="line"><span class="tag"></<span class="name">web-app</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<h2 id="整合SSM第二版"><a href="#整合SSM第二版" class="headerlink" title="整合SSM第二版"></a>整合SSM第二版</h2><h3 id="1-pom-xml"><a href="#1-pom-xml" class="headerlink" title="1 pom.xml"></a>1 pom.xml</h3><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br><span class="line">138</span><br><span class="line">139</span><br><span class="line">140</span><br><span class="line">141</span><br><span class="line">142</span><br><span class="line">143</span><br><span class="line">144</span><br><span class="line">145</span><br><span class="line">146</span><br><span class="line">147</span><br><span class="line">148</span><br><span class="line">149</span><br></pre></td><td class="code"><pre><span class="line"> <span class="tag"><<span class="name">properties</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">spring.version</span>></span>5.0.2.RELEASE<span class="tag"></<span class="name">spring.version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">slf4j.version</span>></span>1.6.6<span class="tag"></<span class="name">slf4j.version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">log4j.version</span>></span>1.2.12<span class="tag"></<span class="name">log4j.version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">mysql.version</span>></span>5.1.6<span class="tag"></<span class="name">mysql.version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">mybatis.version</span>></span>3.4.5<span class="tag"></<span class="name">mybatis.version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">properties</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"><<span class="name">dependencies</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- spring --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.aspectj<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>aspectjweaver<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>1.6.8<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-aop<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-context<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-web<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-webmvc<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-test<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-tx<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-jdbc<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${spring.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>junit<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>junit<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>4.12<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">scope</span>></span>compile<span class="tag"></<span class="name">scope</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>mysql<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mysql-connector-java<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${mysql.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>servlet-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.5<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">scope</span>></span>provided<span class="tag"></<span class="name">scope</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet.jsp<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jsp-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.0<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">scope</span>></span>provided<span class="tag"></<span class="name">scope</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>jstl<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jstl<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>1.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!-- log start --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>log4j<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>log4j<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${log4j.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.slf4j<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>slf4j-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${slf4j.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.slf4j<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>slf4j-log4j12<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${slf4j.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="comment"><!-- log end --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.mybatis<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mybatis<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>${mybatis.version}<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.mybatis<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mybatis-spring<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>1.3.0<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>c3p0<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>c3p0<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>0.9.1.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">type</span>></span>jar<span class="tag"></<span class="name">type</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">scope</span>></span>compile<span class="tag"></<span class="name">scope</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"></<span class="name">dependencies</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"><<span class="name">build</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">plugins</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">plugin</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.apache.maven.plugins<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>maven-compiler-plugin<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>3.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">configuration</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">source</span>></span>1.8<span class="tag"></<span class="name">source</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">target</span>></span>1.8<span class="tag"></<span class="name">target</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">encoding</span>></span>UTF-8<span class="tag"></<span class="name">encoding</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">showWarnings</span>></span>true<span class="tag"></<span class="name">showWarnings</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">configuration</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">plugin</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">plugins</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">build</span>></span></span><br></pre></td></tr></table></figure>
<h3 id="2-spring配置"><a href="#2-spring配置" class="headerlink" title="2 spring配置"></a>2 spring配置</h3><ul>
<li><p>applicationContext.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:context</span>=<span class="string">"http://www.springframework.org/schema/context"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:aop</span>=<span class="string">"http://www.springframework.org/schema/aop"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:tx</span>=<span class="string">"http://www.springframework.org/schema/tx"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"http://www.springframework.org/schema/beans</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans/spring-beans.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context/spring-context.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/aop</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/aop/spring-aop.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/tx</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/tx/spring-tx.xsd"</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--开启注解的扫描,希望处理service和dao,controller不需要Spring框架去处理--></span></span><br><span class="line"> <span class="tag"><<span class="name">context:component-scan</span> <span class="attr">base-package</span>=<span class="string">"cn.lin"</span> ></span></span><br><span class="line"> <span class="comment"><!--配置哪些注解不扫描--></span></span><br><span class="line"> <span class="tag"><<span class="name">context:exclude-filter</span> <span class="attr">type</span>=<span class="string">"annotation"</span> <span class="attr">expression</span>=<span class="string">"org.springframework.stereotype.Controller"</span> /></span></span><br><span class="line"> <span class="tag"></<span class="name">context:component-scan</span>></span></span><br><span class="line"> </span><br><span class="line"><span class="tag"></<span class="name">beans</span>></span></span><br></pre></td></tr></table></figure>
</li>
<li><p>测试</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Test</span></span><br><span class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">run1</span><span class="params">()</span></span>{</span><br><span class="line"> <span class="comment">// 加载配置文件</span></span><br><span class="line"> ApplicationContext ac = <span class="keyword">new</span> ClassPathXmlApplicationContext(<span class="string">"classpath:applicationContext.xml"</span>);</span><br><span class="line"> <span class="comment">// 获取对象</span></span><br><span class="line"> AccountService as = (AccountService) ac.getBean(<span class="string">"accountService"</span>);</span><br><span class="line"> <span class="comment">// 调用方法</span></span><br><span class="line"> as.findAll();</span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="3-spring-mvc-配置"><a href="#3-spring-mvc-配置" class="headerlink" title="3 spring-mvc 配置"></a>3 spring-mvc 配置</h3><ul>
<li><p>web.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><!DOCTYPE web-app PUBLIC</span></span><br><span class="line"><span class="meta"> "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"</span></span><br><span class="line"><span class="meta"> "http://java.sun.com/dtd/web-app_2_3.dtd" ></span></span><br><span class="line"></span><br><span class="line"><span class="tag"><<span class="name">web-app</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">display-name</span>></span>Archetype Created Web Application<span class="tag"></<span class="name">display-name</span>></span></span><br><span class="line"> <span class="comment"><!--配置Spring的监听器,默认只加载WEB-INF目录下的applicationContext.xml配置文件--></span></span><br><span class="line"> <span class="tag"><<span class="name">listener</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">listener-class</span>></span>org.springframework.web.context.ContextLoaderListener<span class="tag"></<span class="name">listener-class</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">listener</span>></span></span><br><span class="line"> <span class="comment"><!-- 设置配置文件路径--></span></span><br><span class="line"> <span class="tag"><<span class="name">context-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-name</span>></span>contextConfigLocation<span class="tag"></<span class="name">param-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-value</span>></span>classpath:applicationContext.xml<span class="tag"></<span class="name">param-value</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">context-param</span>></span></span><br><span class="line"> </span><br><span class="line"> </span><br><span class="line"> <span class="comment"><!--配置前端控制器--></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-name</span>></span>dispatcherServlet<span class="tag"></<span class="name">servlet-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-class</span>></span>org.springframework.web.servlet.DispatcherServlet<span class="tag"></<span class="name">servlet-class</span>></span></span><br><span class="line"> <span class="comment"><!--加载springmvc.xml配置文件--></span></span><br><span class="line"> <span class="tag"><<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-name</span>></span>contextConfigLocation<span class="tag"></<span class="name">param-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-value</span>></span>classpath:springmvc.xml<span class="tag"></<span class="name">param-value</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">init-param</span>></span></span><br><span class="line"> <span class="comment"><!--启动服务器,创建该servlet--></span></span><br><span class="line"> <span class="tag"><<span class="name">load-on-startup</span>></span>1<span class="tag"></<span class="name">load-on-startup</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">servlet</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="tag"><<span class="name">servlet-mapping</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">servlet-name</span>></span>dispatcherServlet<span class="tag"></<span class="name">servlet-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">url-pattern</span>></span>/<span class="tag"></<span class="name">url-pattern</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">servlet-mapping</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--解决中文乱码的过滤器--></span></span><br><span class="line"> <span class="tag"><<span class="name">filter</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-name</span>></span>characterEncodingFilter<span class="tag"></<span class="name">filter-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-class</span>></span>org.springframework.web.filter.CharacterEncodingFilter<span class="tag"></<span class="name">filter-class</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-name</span>></span>encoding<span class="tag"></<span class="name">param-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-value</span>></span>UTF-8<span class="tag"></<span class="name">param-value</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">init-param</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">filter</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-mapping</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filter-name</span>></span>characterEncodingFilter<span class="tag"></<span class="name">filter-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">url-pattern</span>></span>/*<span class="tag"></<span class="name">url-pattern</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">filter-mapping</span>></span></span><br><span class="line"><span class="tag"></<span class="name">web-app</span>></span></span><br></pre></td></tr></table></figure>
</li>
<li><p>springmvc.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8"?></span></span><br><span class="line"><span class="tag"><<span class="name">beans</span> <span class="attr">xmlns</span>=<span class="string">"http://www.springframework.org/schema/beans"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:mvc</span>=<span class="string">"http://www.springframework.org/schema/mvc"</span> <span class="attr">xmlns:context</span>=<span class="string">"http://www.springframework.org/schema/context"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xmlns:xsi</span>=<span class="string">"http://www.w3.org/2001/XMLSchema-instance"</span></span></span><br><span class="line"><span class="tag"> <span class="attr">xsi:schemaLocation</span>=<span class="string">"</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/beans/spring-beans.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/mvc</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/mvc/spring-mvc.xsd</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context</span></span></span><br><span class="line"><span class="tag"><span class="string"> http://www.springframework.org/schema/context/spring-context.xsd"</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--开启注解扫描,只扫描Controller注解--></span></span><br><span class="line"> <span class="tag"><<span class="name">context:component-scan</span> <span class="attr">base-package</span>=<span class="string">"cn.lin"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">context:include-filter</span> <span class="attr">type</span>=<span class="string">"annotation"</span> <span class="attr">expression</span>=<span class="string">"org.springframework.stereotype.Controller"</span> /></span></span><br><span class="line"> <span class="tag"></<span class="name">context:component-scan</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--配置的视图解析器对象--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"internalResourceViewResolver"</span> <span class="attr">class</span>=<span class="string">"org.springframework.web.servlet.view.InternalResourceViewResolver"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"prefix"</span> <span class="attr">value</span>=<span class="string">"/WEB-INF/pages/"</span>/></span> <span class="comment"><!--前缀--></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"suffix"</span> <span class="attr">value</span>=<span class="string">".jsp"</span>/></span> <span class="comment"><!--后缀名--></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--过滤静态资源--></span></span><br><span class="line"> <span class="tag"><<span class="name">mvc:resources</span> <span class="attr">location</span>=<span class="string">"/css/"</span> <span class="attr">mapping</span>=<span class="string">"/css/**"</span> /></span></span><br><span class="line"> <span class="tag"><<span class="name">mvc:resources</span> <span class="attr">location</span>=<span class="string">"/images/"</span> <span class="attr">mapping</span>=<span class="string">"/images/**"</span> /></span></span><br><span class="line"> <span class="tag"><<span class="name">mvc:resources</span> <span class="attr">location</span>=<span class="string">"/js/"</span> <span class="attr">mapping</span>=<span class="string">"/js/**"</span> /></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--开启SpringMVC注解的支持--></span></span><br><span class="line"> <span class="tag"><<span class="name">mvc:annotation-driven</span>/></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">beans</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="4-Spring整合springMVC"><a href="#4-Spring整合springMVC" class="headerlink" title="4 Spring整合springMVC"></a>4 Spring整合springMVC</h3><p><img src="http://ww1.sinaimg.cn/large/865625bfgy1ghhjlw1scsj20l00ghq91.jpg" alt></p>
<p>在web.xml中加入监听器</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"><!--配置Spring的监听器,默认只加载WEB-INF目录下的applicationContext.xml配置文件--></span></span><br><span class="line"> <span class="tag"><<span class="name">listener</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">listener-class</span>></span>org.springframework.web.context.ContextLoaderListener<span class="tag"></<span class="name">listener-class</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">listener</span>></span></span><br><span class="line"><span class="comment"><!-- 设置配置文件路径--></span></span><br><span class="line"> <span class="tag"><<span class="name">context-param</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-name</span>></span>contextConfigLocation<span class="tag"></<span class="name">param-name</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">param-value</span>></span>classpath:applicationContext.xml<span class="tag"></<span class="name">param-value</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">context-param</span>></span></span><br></pre></td></tr></table></figure>
<h3 id="5-MyBatis-配置"><a href="#5-MyBatis-配置" class="headerlink" title="5 MyBatis 配置"></a>5 MyBatis 配置</h3><ul>
<li><p>此步可选,可直接跳到6</p>
</li>
<li><p>SqlMapConfig.xml</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version='1.0' encoding='UTF-8'?></span></span><br><span class="line"></span><br><span class="line"><span class="meta"><!DOCTYPE configuration</span></span><br><span class="line"><span class="meta"> PUBLIC "-//mybatis.org//DTD Config 3.0//EN"</span></span><br><span class="line"><span class="meta"> "http://mybatis.org/dtd/mybatis-3-config.dtd"></span></span><br><span class="line"><span class="tag"><<span class="name">configuration</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">environments</span> <span class="attr">default</span>=<span class="string">"mysql"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">environment</span> <span class="attr">id</span>=<span class="string">"mysql"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">transactionManager</span> <span class="attr">type</span>=<span class="string">"JDBC"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">dataSource</span> <span class="attr">type</span>=<span class="string">"POOLED"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"driver"</span> <span class="attr">value</span>=<span class="string">"com.mysql.jdbc.Driver"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"url"</span> <span class="attr">value</span>=<span class="string">"jdbc:mysql:///ssm"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"username"</span> <span class="attr">value</span>=<span class="string">"root"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"password"</span> <span class="attr">value</span>=<span class="string">"1234"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">dataSource</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">environment</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">environments</span>></span></span><br><span class="line"> <span class="comment"><!-- 使用的是注解 --></span></span><br><span class="line"> <span class="tag"><<span class="name">mappers</span>></span></span><br><span class="line"> <span class="comment"><!-- <mapper class="cn.itcast.lin.AccountDao"/> --></span></span><br><span class="line"> <span class="comment"><!-- 该包下所有的dao接口都可以使用 --></span></span><br><span class="line"> <span class="tag"><<span class="name">package</span> <span class="attr">name</span>=<span class="string">"cn.lin.dao"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">mappers</span>></span></span><br><span class="line"><span class="tag"></<span class="name">configuration</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<ul>
<li><p>测试</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">run1</span><span class="params">()</span> <span class="keyword">throws</span> Exception </span>{</span><br><span class="line"> <span class="comment">// 加载配置文件</span></span><br><span class="line"> InputStream in = Resources.getResourceAsStream(<span class="string">"SqlMapConfig.xml"</span>);</span><br><span class="line"> <span class="comment">// 创建SqlSessionFactory对象</span></span><br><span class="line"> SqlSessionFactory factory = <span class="keyword">new</span> SqlSessionFactoryBuilder().build(in);</span><br><span class="line"> <span class="comment">// 创建SqlSession对象</span></span><br><span class="line"> SqlSession session = factory.openSession();</span><br><span class="line"> <span class="comment">// 获取到代理对象</span></span><br><span class="line"> AccountDao dao = session.getMapper(AccountDao.class);</span><br><span class="line"> <span class="comment">// 查询所有数据</span></span><br><span class="line"> List<Account> list = dao.findAll();</span><br><span class="line"> <span class="keyword">for</span>(Account account : list){</span><br><span class="line"> System.out.println(account);</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">// 关闭资源</span></span><br><span class="line"> session.close();</span><br><span class="line"> in.close();</span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="6-spring整合mybatis"><a href="#6-spring整合mybatis" class="headerlink" title="6 spring整合mybatis"></a>6 spring整合mybatis</h3><ul>
<li><p>可以删除SqlMapConfig.xml,然后在applicationContext.xml中加入</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"><!--Spring整合MyBatis框架--></span></span><br><span class="line"> <span class="comment"><!--配置连接池--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"dataSource"</span> <span class="attr">class</span>=<span class="string">"com.mchange.v2.c3p0.ComboPooledDataSource"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"driverClass"</span> <span class="attr">value</span>=<span class="string">"com.mysql.jdbc.Driver"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"jdbcUrl"</span> <span class="attr">value</span>=<span class="string">"jdbc:mysql:///ssm"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"user"</span> <span class="attr">value</span>=<span class="string">"root"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"password"</span> <span class="attr">value</span>=<span class="string">"1234"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"> </span><br><span class="line"> <span class="comment"><!--配置SqlSessionFactory工厂--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"sqlSessionFactory"</span> <span class="attr">class</span>=<span class="string">"org.mybatis.spring.SqlSessionFactoryBean"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"dataSource"</span> <span class="attr">ref</span>=<span class="string">"dataSource"</span> /></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"> </span><br><span class="line"> <span class="comment"><!--配置AccountDao接口所在包--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"mapperScanner"</span> <span class="attr">class</span>=<span class="string">"org.mybatis.spring.mapper.MapperScannerConfigurer"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"basePackage"</span> <span class="attr">value</span>=<span class="string">"cn.lin.dao"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="7-spring整合mybatis框架配置事务"><a href="#7-spring整合mybatis框架配置事务" class="headerlink" title="7 spring整合mybatis框架配置事务"></a>7 spring整合mybatis框架配置事务</h3><ul>
<li><p>在applicationContext.xml中加入</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line"></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--配置Spring框架声明式事务管理--></span></span><br><span class="line"> <span class="comment"><!--配置事务管理器--></span></span><br><span class="line"> <span class="tag"><<span class="name">bean</span> <span class="attr">id</span>=<span class="string">"transactionManager"</span> <span class="attr">class</span>=<span class="string">"org.springframework.jdbc.datasource.DataSourceTransactionManager"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">property</span> <span class="attr">name</span>=<span class="string">"dataSource"</span> <span class="attr">ref</span>=<span class="string">"dataSource"</span> /></span></span><br><span class="line"> <span class="tag"></<span class="name">bean</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--配置事务通知--></span></span><br><span class="line"> <span class="tag"><<span class="name">tx:advice</span> <span class="attr">id</span>=<span class="string">"txAdvice"</span> <span class="attr">transaction-manager</span>=<span class="string">"transactionManager"</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">tx:attributes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">tx:method</span> <span class="attr">name</span>=<span class="string">"find*"</span> <span class="attr">read-only</span>=<span class="string">"true"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">tx:method</span> <span class="attr">name</span>=<span class="string">"*"</span> <span class="attr">isolation</span>=<span class="string">"DEFAULT"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">tx:attributes</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">tx:advice</span>></span></span><br><span class="line"></span><br><span class="line"><span class="comment"><!-- 配置AOP增强--></span></span><br><span class="line"> <span class="tag"><<span class="name">aop:config</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">aop:advisor</span> <span class="attr">advice-ref</span>=<span class="string">"txAdvice"</span> <span class="attr">pointcut</span>=<span class="string">"execution(* cn.lin.service.impl.*ServiceImpl.*(..))"</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">aop:config</span>></span></span><br></pre></td></tr></table></figure>
</li>
</ul>
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<p>SpringMVC学习</p>
<h2 id="1-官方文档"><a href="#1-官方文档" class="headerlink" title="1 官方文档"></a>1 官方文档</h2><p><a href="https://docs.spring.io/spring/docs/5.2.0.RELEASE/spring-framework-reference/web.html#mvc" target="_blank" rel="noopener">官方文档</a></p>
<h2 id="2-执行原理"><a href="#2-执行原理" class="headerlink" title="2 执行原理"></a>2 执行原理</h2><p><img src="http://ww1.sinaimg.cn/large/865625bfgy1ghbk4c2l8mj20pu0cpdk4.jpg" alt></p>
<h2 id="3-第一个程序"><a href="#3-第一个程序" class="headerlink" title="3 第一个程序"></a>3 第一个程序</h2><p><a href="https://mp.weixin.qq.com/s?__biz=Mzg2NTAzMTExNg==&mid=2247483978&idx=1&sn=6711110a3b2595d6bb987ca02ee0a728&scene=19#wechat_redirect" target="_blank" rel="noopener">狂神说笔记</a></p>
<h2 id="4-整合SSM"><a href="#4-整合SSM" class="headerlink" title="4 整合SSM"></a>4 整合SSM</h2><h3 id="4-1-导入依赖"><a href="#4-1-导入依赖" class="headerlink" title="4.1 导入依赖"></a>4.1 导入依赖</h3><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"><!--依赖 junit、数据库驱动、连接池、servlet、jsp、mybatis --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependencies</span>></span></span><br><span class="line"> <span class="comment"><!--Junit--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>junit<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>junit<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>4.12<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="comment"><!--数据库驱动--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>mysql<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mysql-connector-java<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>5.1.47<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="comment"><!-- 数据库连接池 --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>com.mchange<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>c3p0<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>0.9.5.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Servlet - JSP --></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>servlet-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.5<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet.jsp<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jsp-api<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>javax.servlet<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>jstl<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>1.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Mybatis--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.mybatis<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mybatis<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>3.5.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.mybatis<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>mybatis-spring<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>2.0.2<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"></span><br><span class="line"> <span class="comment"><!--Spring--></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-webmvc<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>5.1.9.RELEASE<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">groupId</span>></span>org.springframework<span class="tag"></<span class="name">groupId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">artifactId</span>></span>spring-jdbc<span class="tag"></<span class="name">artifactId</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">version</span>></span>5.1.9.RELEASE<span class="tag"></<span class="name">version</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependency</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">dependencies</span>></span></span><br><span class="line"> <span class="comment"><!--静态资源导出--></span></span><br><span class="line"> <span class="tag"><<span class="name">build</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">resources</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">directory</span>></span>src/main/java<span class="tag"></<span class="name">directory</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.properties<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.xml<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filtering</span>></span>false<span class="tag"></<span class="name">filtering</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">directory</span>></span>src/main/resources<span class="tag"></<span class="name">directory</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.properties<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">include</span>></span>**/*.xml<span class="tag"></<span class="name">include</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">includes</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">filtering</span>></span>false<span class="tag"></<span class="name">filtering</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">resource</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">resources</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">build</span>></span></span><br></pre></td></tr></table></figure>
<h3 id="4-2-IDEA连接数据库"><a href="#4-2-IDEA连接数据库" class="headerlink" title="4.2 IDEA连接数据库"></a>4.2 IDEA连接数据库</h3><p>URL: jdbc:mysql://localhost:3306?serverTimezone=GMT</p>
<h3 id="4-3-建立包"><a href="#4-3-建立包" class="headerlink" title="4.3 建立包"></a>4.3 建立包</h3><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta"><?xml version="1.0" encoding="UTF-8" ?></span></span><br><span class="line"><span class="meta"><!DOCTYPE configuration</span></span><br><span class="line"><span class="meta"> PUBLIC "-//mybatis.org//DTD Config 3.0//EN"</span></span><br><span class="line"><span class="meta"> "http://mybatis.org/dtd/mybatis-3-config.dtd"></span></span><br><span class="line"><span class="tag"><<span class="name">configuration</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">configuration</span>></span></span><br></pre></td></tr></table></figure>
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