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upload.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="format-detection" content="telephone=no"/>
<title>图片上传</title>
<style>
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td,hr,button,article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section {
margin:0;padding:0;
}
body{
font: 14px/1.5 tahoma,"microsoft yahei","微软雅黑E\8F6F\96C5\9ED1";
}
header {
height:40px;
line-height:40px;
padding-left:10px;
background: -webkit-gradient(linear, 0 0, 0 100%, from(#fefefe), to(#e8e8e8));
}
footer{
position:absolute;
bottom:0px;
padding:10px;
}
.submitbtn{
display: inline-block;
min-width: 60px;
height: 30px;
padding: 0 15px;
border: none;
background: #ff4400;
text-align: center;
text-decoration: none;
line-height: 30px;
color: #ffffff;
font-size: 14px;
font-weight: 700;
-webkit-border-radius: 2px;
background: -webkit-gradient(linear, 0 0, 0 100%, color-stop(0, #ff5500), color-stop(1, #ff4400));
text-shadow: 0 -1px 1px #ca3511;
-webkit-box-shadow: 0 -1px 0 #bf3210 inset;
}
header h1{
font-size:16px;
}
#content{
padding:10px;
}
.imglist {
float:left;
margin:10px 10px 10px 0;
width:60px;
text-align:center;
}
.imglist .plus, .imglist .img, .imglist .img img {
width:60px;
height:60px;
overflow:hidden;
}
.imglist .plus{
color:#eee;
font:72px/60px Arial;
border:2px dashed #eee;
box-sizing: border-box
}
.imglist .img img{
display:block;
overflow:hidden;
}
.imglist .btn{
color:#35a1d4;
}
input[type="file"]{
/*不能直接设置display:none，某些浏览器上由于安全限制，不能处罚click事件*/
/*display:none;*/
position:absolute;
left:-1000px;
}
#content:after {
visibility: hidden;
display: block;
font-size: 0;
content: " ";
clear: both;
height: 0;
}
.describe{
clear:both;
padding-top:20px;
}
.describe textarea{
width:95%;
line-height: 20px;
padding: 4px 6px;
font-size: 12px;
color: #595959;
resize: auto;
cursor: auto;
margin-bottom:10px;
}
#loading{
display:none;
margin:10px;
}
#loading span{
display: inline-block;
-webkit-animation: spin 2s infinite linear;
-moz-animation: spin 2s infinite linear;
animation: spin 2s infinite linear;
}
#message{
display:none;
margin:10px;
padding:10px;
width: 190px;
max-width: 400px;
background: #f7ab06;
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #ffba27), color-stop(100%, #f7ab06));
border: 1px solid #e68200;
border-radius: 3px;
-webkit-box-shadow: inset 0px 0px 2px 2px #ffc241;
}
@-moz-keyframes spin {
0% { -moz-transform: rotate(0deg); }
100% { -moz-transform: rotate(359deg); }
}
@-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(359deg); }
}
@-o-keyframes spin {
0% { -o-transform: rotate(0deg); }
100% { -o-transform: rotate(359deg); }
}
@-ms-keyframes spin {
0% { -ms-transform: rotate(0deg); }
100% { -ms-transform: rotate(359deg); }
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(359deg); }
}
</style>
<script type="text/javascript" src="http://a.tbcdn.cn/s/kissy/1.3.0/kissy.js"></script>
</head>
<body>
<header>
<h1>图片上传</h1>
</header>
<section id="content">
<input type="file" id="jfile" />
<div class="imglist" id="jplus">
<p class="plus">+</p>
<p class="btn">增加图片</p>
</div>
<div class="describe">
<!--可以在这里增加多个需要回填的隐藏域-->
<div id="otherfield">
<textarea style="display:none" id="input-describe" class="jfield" name="describe" rows="4" placeholder="请输入图片描述"></textarea>
<input class="jfield" type="hidden" name="test1" value="test1" />
<input class="jfield" type="hidden" name="test2" value="test2" />
<input class="jfield" type="hidden" name="test3" value="test3" />
<button class="submitbtn" type="button" id="submit">上传图片</button>
</div>
</div>
</section>
<section id="loading">
正在上传图片，请稍后.. <span>/</span>
</section>
<section id="message">
图片上传成功,回到电脑上刷新页面即可看到结果。
</section>
<script>
KISSY.ready(function(S){
var $=S.all, file=$("#jfile"), imageType = /image.*/,
maximg = 10,
content = $("#content"),
plus = $("#jplus"),
tpl = '<div class="imglist"><p class="img">load..</p><a class="btn del">删除图片</a></div>',
//看看上传了几张图
imgcount = function(){
if(content.all(".imglist").length-1>=maximg){
plus.hide();
}else{
plus.show();
}
}
//是否回填描述
if(localStorage.getItem("uploaddescribe")){
$("#input-describe").val(localStorage.getItem("uploaddescribe"))
}
content.delegate("click",".del",function(ev){
$(ev.currentTarget).parent().remove();
});
document.getElementById("jfile").addEventListener("change", function(){
var files = this.files;
for (var i = 0, numFiles = files.length; i < numFiles; i++) {
var file = files[i];
if(file.type.match(imageType)) {
var item = $(tpl),
reader = new FileReader();
item.data("data-file",file)
item.insertBefore(plus);
//同步下照片数量
imgcount();
reader.onload= function(e){
var img = document.createElement("img"),
imgpanel = item.one(".img");
imgpanel.text("").append(img);
img.src= e.target.result;
}
reader.readAsDataURL(file);
}
//});
}
}, false);
file.on("change", function(ev){
});
plus.on("click", function(ev){
ev.halt();
file.fire("click");
});
$("#submit").on("click", function(ev){
var formData = new FormData();
//判断是否有图片
if(content.all(".imglist").length<=1){
alert("你还没有添加图片!");
return;
}
content.hide();
$("#loading").show();
//加入需要回填的filed
$("#otherfield .jfield").each(function(item){
formData.append(item.attr("name"), item.val());
});
//加入file
content.all(".imglist").each(function(item,index){
if(item.hasData("data-file")){
formData.append("img"+index,item.data("data-file"));
}
});
var xhr = new XMLHttpRequest();
//这里配置后端接收图片的地址
//上传后返回json格式
//{"status":false,"message":"图片太大了"}
//{"status":true,"message":"上传成功"}
xhr.open("POST", "tree.html");
xhr.onload = function(d) {
var data={};
try{
data= new Function('return ' + data + ';')();
}catch(e){
//throw 'Json parse error!';
}
if(data && data.status) {
//上传成功
$("#message").show();
}else{
localStorage.setItem("uploaddescribe",$("#input-describe").val());
if(data && data.message){
alert(data.message);
}else{
alert("异常错误，请在页面刷新后重新上传");
}
location.reload();
}
};
xhr.send(formData);
})
});
</script>
</body>
</html>