模块化开发

README.md

@@ -1,5 +1,5 @@
-原项目地址
-https://gitee.com/youngzil/quickstart-all
+项目地址
+https://github.com/youngzil/quickstart-modular
 
 
 模块化相关，JAVA的模块化开发框架

doc/模块化.md

@@ -0,0 +1,53 @@
+模块化的实现、好处、框架
+
+
+
+---------------------------------------------------------------------------------------------------------------------
+
+
+模块化框架：
+osgi、jarslink、java9等
+
+
+模块化好处：
+便于项目管理，解耦：开发、测试、交付、升级，引用其他类库都可以独立进行
+
+OSGI：
+https://www.infoq.cn/article/modular-java-dynamic-modularity
+
+
+javaagent使用 + 字节码修改框架
+动态代理和静态代理：参考quickstart-proxy/doc
+java探针javaAgent的使用
+java的热部署和热加载：联系、区别、原理、使用场景
+java热加载：VirtualMachine、Attach、Agent、Instrumentation：只能修改方法体，不能修改的的结构，不能变更方法签名、增加和删除方法/类的成员属性
+
+热部署：一般是使用自定义的ClassLoader来加载应用，类似tomcat中配置的context，检测到class文件有变化，就重新加载项目，并替换之前的classloader
+热加载：就是通过Attach技术使用javaagent来重新加载类，retransformClasses对于已经加载的类重新进行转换处理，即会触发重新加载类定义，或者使用字节码修改框架来实现类
+热部署可以进行模块化开发：比如可以进行同一个类的不同版本的加载，不同项目的加载（依赖jar版本不一样），直接进行不同版本的jar加载
+模块可以是一个类的不同版本、不同的包路径下的代码、同一个jar的不同版本，同一个项目的不同模块，任何一个 Java 类库
+
+
+premain
+以vm参数的形式载入，在程序main方法执行之前执行
+其jar包的manifest需要配置属性Premain-Class
+
+agentmain
+以vm参数的形式载入，在程序main方法执行之前执行
+其jar包的manifest需要配置属性Premain-Class
+
+
+
+---------------------------------------------------------------------------------------------------------------------
+
+
+
+---------------------------------------------------------------------------------------------------------------------
+
+
+
+
+---------------------------------------------------------------------------------------------------------------------
+
+
+

pom.xml

@@ -1,31 +1,32 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<groupId>org.quickstart</groupId>
-		<artifactId>quickstart-all</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>..</relativePath> <!-- lookup parent from repository -->
-	</parent>
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <groupId>org.quickstart</groupId>
+    <artifactId>quickstart-all</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <!--		<relativePath>..</relativePath> &lt;!&ndash; lookup parent from repository &ndash;&gt;-->
+  </parent>
 
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>quickstart-modular</artifactId>
-	<packaging>pom</packaging>
-	<name>${project.artifactId}-${project.version}</name>
-	<url>http://maven.apache.org</url>
-	<description>Demo project for XXX</description>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>quickstart-modular</artifactId>
+  <packaging>pom</packaging>
+  <name>${project.artifactId}-${project.version}</name>
+  <url>http://maven.apache.org</url>
+  <description>Demo project for XXX</description>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-	</properties>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
 
-	<dependencies>
+  <dependencies>
 
-	</dependencies>
+  </dependencies>
 
-	<modules>
-		<module>quickstart-jarslink</module>
-	</modules>
+  <modules>
+    <module>quickstart-jarslink</module>
+    <module>quickstart-sofa-jarslink</module>
+  </modules>
 
 </project>

quickstart-jarslink/README.md

@@ -1,3 +1,7 @@
+现在已经合并到蚂蚁金服开源项目sofa-jarslink里面了
+https://github.com/sofastack/sofa-jarslink
+
+
 如何使用:https://github.com/alibaba/jarslink/wiki/%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8
 
 JarsLink (原名Titan) 是一个基于JAVA的模块化开发框架，它提供在运行时动态加载模块（一个JAR包）、卸载模块和模块间调用的API。

quickstart-jarslink/pom.xml

@@ -1,77 +1,78 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<groupId>org.quickstart</groupId>
-		<artifactId>quickstart-modular</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>..</relativePath> <!-- lookup parent from repository -->
-	</parent>
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <groupId>org.quickstart</groupId>
+    <artifactId>quickstart-modular</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <relativePath>..</relativePath> <!-- lookup parent from repository -->
+  </parent>
 
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>quickstart-jarslink</artifactId>
-	<packaging>pom</packaging>
-	<name>${project.artifactId}-${project.version}</name>
-	<url>http://maven.apache.org</url>
-	<description>Demo project for XXX</description>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>quickstart-jarslink</artifactId>
+  <packaging>pom</packaging>
+  <name>${project.artifactId}-${project.version}</name>
+  <url>http://maven.apache.org</url>
+  <description>Demo project for XXX</description>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<jarslink.version>1.6.1.20180301</jarslink.version>
-		<jarslink.version>1.5.0.20180213</jarslink.version>
-	</properties>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <jarslink.version>1.6.1.20180301</jarslink.version>
+    <jarslink.version>1.5.0.20180213</jarslink.version>
+  </properties>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-dependencies</artifactId>
-<!-- 				<version>1.5.13.RELEASE</version> -->
-				<version>2.0.0.RELEASE</version>
-
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-dependencies</artifactId>
+        <!-- 				<version>1.5.13.RELEASE</version> -->
+        <version>2.0.0.RELEASE</version>
 
-	<dependencies>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
 
-		<dependency>
-			<groupId>com.alipay.jarslink</groupId>
-			<artifactId>jarslink-api</artifactId>
-			<version>${jarslink.version}</version>
-		</dependency>
+  <dependencies>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+    <!--    现在已经合并到蚂蚁金服开源项目sofa-jarslink里面了-->
+    <dependency>
+      <groupId>com.alipay.jarslink</groupId>
+      <artifactId>jarslink-api</artifactId>
+      <version>${jarslink.version}</version>
+    </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
 
-		<dependency>
-			<groupId>com.alibaba</groupId>
-			<artifactId>fastjson</artifactId>
-			<version>1.2.46</version>
-		</dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
 
-	</dependencies>
+    <dependency>
+      <groupId>com.alibaba</groupId>
+      <artifactId>fastjson</artifactId>
+      <version>1.2.46</version>
+    </dependency>
 
-	<modules>
-		<module>quickstart-jarslink-api</module>
-		<module>quickstart-jarslink-memory</module>
-		<module>quickstart-jarslink-mysql</module>
-		<module>quickstart-jarslink-redis</module>
-		<module>quickstart-jarslink-app</module>
-		<module>quickstart-jarslink-service-a</module>
-		<module>quickstart-jarslink-service-b</module>
-		<module>quickstart-jarslink-web</module>
-	</modules>
+  </dependencies>
+
+  <modules>
+    <module>quickstart-jarslink-api</module>
+    <module>quickstart-jarslink-memory</module>
+    <module>quickstart-jarslink-mysql</module>
+    <module>quickstart-jarslink-redis</module>
+    <module>quickstart-jarslink-app</module>
+    <module>quickstart-jarslink-service-a</module>
+    <module>quickstart-jarslink-service-b</module>
+    <module>quickstart-jarslink-web</module>
+  </modules>
 
 </project>

quickstart-javase9/README.md

@@ -0,0 +1,5 @@
+参考
+/Users/yangzl/git/quickstart-javase9
+
+
+

quickstart-javase9/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<parent>
+		<groupId>org.quickstart</groupId>
+		<artifactId>quickstart-modular</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>quickstart-javase9</artifactId>
+	<packaging>jar</packaging>
+	<name>${project.artifactId}-${project.version}</name>
+	<url>http://maven.apache.org</url>
+	<description>Demo project for XXX</description>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+
+	<dependencies>
+	</dependencies>
+
+</project>

quickstart-sofa-jarslink/README.md

@@ -0,0 +1,5 @@
+参考
+/Users/yangzl/git/quickstart-sofa/quickstart-sofa-jarslink
+
+
+

quickstart-sofa-jarslink/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<parent>
+		<groupId>org.quickstart</groupId>
+		<artifactId>quickstart-modular</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>quickstart-sofa-jarslink</artifactId>
+	<packaging>jar</packaging>
+	<name>${project.artifactId}-${project.version}</name>
+	<url>http://maven.apache.org</url>
+	<description>Demo project for XXX</description>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+
+	<dependencies>
+	</dependencies>
+
+</project>