Maven构建多模块项目演示

作者: Michael 日期: 2012 年 5 月 24 日发表评论 (0) 查看评论

目录：

概述
基础环境
Maven构建项目
转为Eclipse工程

【一】、概述

本文主要是演示如何运用Mave构建多模块项目的应用

【二】、基础环境

Maven 版本：3.0.4
工作目录为：D:\workspace，在工作目录下新建文件夹： mydemo
mydemo 分三个模块：myapp-core、myapp-client、myapp-webapp

【三】、Maven构建项目

按win+R 键输入cmd 回车进入控制台，切换到目录：D:\workspace\mydemo.

1.构建myapp-core项目

mvn archetype:generate -DarchetypeArtifactId=maven-archetype-quickstart -DgroupId=com.micmiu.demo -DartifactId=myapp-core -Dpackage=com.micmiu.demo.core -Dversion=1.0

1	mvn archetype:generate -DarchetypeArtifactId=maven-archetype-quickstart -DgroupId=com.micmiu.demo -DartifactId=myapp-core -Dpackage=com.micmiu.demo.core -Dversion=1.0

运行截图如下：

构建完成后目录结构如下：

D:\workspace\mydemo\myapp-core>tree /F 卷 work 的文件夹 PATH 列表卷序列号为 2AF7-9BD9 D:. │ pom.xml │ └─src ├─main │ └─java │ └─com │ └─micmiu │ └─demo │ └─core │ App.java │ └─test └─java └─com └─micmiu └─demo └─core AppTest.java

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D:\workspace\mydemo\myapp-core>tree /F
卷 work 的文件夹 PATH 列表
卷序列号为 2AF7-9BD9
D:.
│  pom.xml
│
└─src
    ├─main
    │  └─java
    │      └─com
    │          └─micmiu
    │              └─demo
    │                  └─core
    │                          App.java
    │
    └─test
        └─java
            └─com
                └─micmiu
                    └─demo
                        └─core
                                AppTest.java

2.构建myapp-client 项目

mvn archetype:generate -DarchetypeArtifactId=maven-archetype-quickstart -DgroupId=com.micmiu.demo -DartifactId=myapp-client -Dpackage=com.micmiu.demo.client -Dversion=1.0

1	mvn archetype:generate -DarchetypeArtifactId=maven-archetype-quickstart -DgroupId=com.micmiu.demo -DartifactId=myapp-client -Dpackage=com.micmiu.demo.client -Dversion=1.0

构建完成后目录结构如下：

D:\workspace\mydemo\myapp-client>tree /F 卷 work 的文件夹 PATH 列表卷序列号为 2AF7-9BD9 D:. │ pom.xml │ └─src ├─main │ └─java │ └─com │ └─micmiu │ └─demo │ └─client │ App.java │ └─test └─java └─com └─micmiu └─demo └─client AppTest.java

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D:\workspace\mydemo\myapp-client>tree /F
卷 work 的文件夹 PATH 列表
卷序列号为 2AF7-9BD9
D:.
│  pom.xml
│
└─src
    ├─main
    │  └─java
    │      └─com
    │          └─micmiu
    │              └─demo
    │                  └─client
    │                          App.java
    │
    └─test
        └─java
            └─com
                └─micmiu
                    └─demo
                        └─client
                                AppTest.java

3.构建myapp-webapp 项目

mvn archetype:generate -DarchetypeArtifactId=maven-archetype-webapp -DgroupId=com.micmiu.demo -DartifactId=myapp-webapp -Dpackage=com.micmiu.demo.web -Dversion=1.0

1	mvn archetype:generate -DarchetypeArtifactId=maven-archetype-webapp -DgroupId=com.micmiu.demo -DartifactId=myapp-webapp -Dpackage=com.micmiu.demo.web -Dversion=1.0

构建完成后目录结构如下：

D:\workspace\mydemo\myapp-webapp>tree /F 卷 work 的文件夹 PATH 列表卷序列号为 2AF7-9BD9 D:. │ pom.xml │ └─src └─main ├─resources └─webapp │ index.jsp │ └─WEB-INF web.xml

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D:\workspace\mydemo\myapp-webapp>tree /F
卷 work 的文件夹 PATH 列表
卷序列号为 2AF7-9BD9
D:.
│  pom.xml
│
└─src
    └─main
        ├─resources
        └─webapp
            │  index.jsp
            │
            └─WEB-INF
                    web.xml

4.添加parent项目的POM

在D:\workspace\mydemo 新建一个pom.xml 文件，内容如下：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
 	<groupId>com.micmiu.demo</groupId>
	<artifactId>myapp-parent</artifactId>
	<packaging>pom</packaging>
	<version>1.0</version>
	<name>mydemo-parent</name>
	<url>http://maven.apache.org</url>
	<modules>
		<module>myapp-client</module>
		<module>myapp-core</module>
		<module>myapp-webapp</module>
	</modules>
</project>

<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/maven-v4_0_0.xsd">

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-parent</artifactId>

<name>mydemo-parent</name>

<url>http://maven.apache.org</url>

<module>myapp-client</module>

<module>myapp-core</module>

<module>myapp-webapp</module>

</modules>

</project>

对mydemo\myapp-client\pom.xml文件修改成如下：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
  	<groupId>com.micmiu.demo</groupId>
    <artifactId>myapp-parent</artifactId>
    <version>1.0</version>
  </parent>
  <groupId>com.micmiu.demo</groupId>
  <artifactId>myapp-client</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <name>myapp-client</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

<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/maven-v4_0_0.xsd">

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-parent</artifactId>

</parent>

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-client</artifactId>

<name>myapp-client</name>

<url>http://maven.apache.org</url>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

</dependency>

</dependencies>

</project>

ps：主要变化增加了父节点：<parent/>，该节点的内容需要和mydemo\pom.xml中的配置信息完全一致。

对mydemo\myapp-core\pom.xml文件修改成如下：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
  	<groupId>com.micmiu.demo</groupId>
    <artifactId>myapp-parent</artifactId>
    <version>1.0</version>
  </parent>
  <groupId>com.micmiu.demo</groupId>
  <artifactId>myapp-core</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <name>myapp-core</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

<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/maven-v4_0_0.xsd">

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-parent</artifactId>

</parent>

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-core</artifactId>

<name>myapp-core</name>

<url>http://maven.apache.org</url>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

</dependency>

</dependencies>

</project>

ps：主要变化增加了父节点：<parent/>,该节点的内容需要和mydemo\pom.xml中的配置信息完全一致。

对mydemo\myapp-webapp\pom.xml文件修改成如下：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
  	<groupId>com.micmiu.demo</groupId>
    <artifactId>myapp-parent</artifactId>
    <version>1.0</version>
  </parent>
  <groupId>com.micmiu.demo</groupId>
  <artifactId>myapp-webapp</artifactId>
  <packaging>war</packaging>
  <version>1.0</version>
  <name>myapp-webapp Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>com.micmiu.demo</groupId>
      <artifactId>myapp-core</artifactId>
    	<version>${project.version}</version>
   	</dependency>
  </dependencies>
  <build>
    <finalName>myapp-webapp</finalName>
  </build>
</project>

<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/maven-v4_0_0.xsd">

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-parent</artifactId>

</parent>

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-webapp</artifactId>

<name>myapp-webapp Maven Webapp</name>

<url>http://maven.apache.org</url>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

</dependency>

<groupId>com.micmiu.demo</groupId>

<artifactId>myapp-core</artifactId>

<version>${project.version}</version>

</dependency>

</dependencies>

<build>

<finalName>myapp-webapp</finalName>

</build>

</project>

ps：主要变化增加了父节点：<parent/>,该节点的内容需要和mydemo\pom.xml中的配置信息完全一致；增加了对myapp-core的依赖节点<dependency>，表示myapp-webapp项目中需要myapp-core的jar包

到此多模块的项目已经基本构建成功。

【四】、转化为Eclipse工程

控制台切换到目录：D:\workspace\mydemo 下，运行：

mvn eclipse:eclipse -Dwtpversion=1.0

1	mvn eclipse:eclipse -Dwtpversion=1.0

会看到类似如下信息：

[INFO] Reactor Build Order: [INFO] [INFO] mydemo-parent [INFO] myapp-client [INFO] myapp-core [INFO] myapp-webapp Maven Webapp [INFO] [INFO] ------------------------------------------------------------------------ [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] mydemo-parent ..................................... SUCCESS [0.528s] [INFO] myapp-client ...................................... SUCCESS [0.111s] [INFO] myapp-core ........................................ SUCCESS [0.034s] [INFO] myapp-webapp Maven Webapp ......................... SUCCESS [0.048s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.151s [INFO] Finished at: Thu May 24 18:05:13 CST 2012 [INFO] Final Memory: 5M/15M [INFO] ------------------------------------------------------------------------

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[INFO] Reactor Build Order:
[INFO]
[INFO] mydemo-parent
[INFO] myapp-client
[INFO] myapp-core
[INFO] myapp-webapp Maven Webapp
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] mydemo-parent ..................................... SUCCESS [0.528s]
[INFO] myapp-client ...................................... SUCCESS [0.111s]
[INFO] myapp-core ........................................ SUCCESS [0.034s]
[INFO] myapp-webapp Maven Webapp ......................... SUCCESS [0.048s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.151s
[INFO] Finished at: Thu May 24 18:05:13 CST 2012
[INFO] Final Memory: 5M/15M
[INFO] ------------------------------------------------------------------------

在目录mydemo\myapp-webapp\下生成的 .classpath 文件内容如下：

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
  <classpathentry kind="src" path="src/main/resources" excluding="**/*.java"/>
  <classpathentry kind="output" path="target/classes"/>
  <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
  <classpathentry kind="var" path="M2_REPO/junit/junit/3.8.1/junit-3.8.1.jar"/>
  <classpathentry kind="src" path="/myapp-core"/>
</classpath>

<?xml version="1.0" encoding="UTF-8"?>

</classpath>

其中<classpathentry kind=”src” path=”/myapp-core”/>表示项目的引用

从上面的信息可以看出已经成功转化为eclipse可识别的普通项目，导入之后如下:

从上面的截图可见：项目之间的依赖关系也配置正确。

原创文章，转载请注明： 转载自micmiu – 软件开发+生活点滴[ http://www.micmiu.com/ ]

本文链接地址: http://www.micmiu.com/software/build/maven-multi-module-demo/

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