使用IDEA创建Maven聚合工程、项目分子项目模块，最后一体化运行

文章结构

1.maven技术介绍
2.聚合工程搭建
3.SSM框架整合
4.测试运行聚合工程

1,maven技术介绍

Maven是一个跨平台的项目管理工具，它包含了一个项目对象模型 (Project Object Model)，一组标准集合，一个项目生命周期(Project Lifecycle)，一个依赖管理系统(Dependency Management System)，和用来运行定义在生命周期阶段(phase)中插件(plugin)目标(goal)的逻辑。主要服务于基于Java平台的项目构建，依赖管理和项目信息管理。

1.1、项目的构建：

项目构建过程包括【清理项目】→【编译项目】→【测试项目】→【生成测试报告】→【打包项目】→【部署项目】这几个步骤。

1.2、使用Maven的好处

Maven中使用约定，约定java源代码代码必须放在哪个目录下，编译好的java代码又必须放到哪个目录下，这些目录都有明确的约定。Maven的每一个动作都拥有一个生命周期，例如执行 mvn install 就可以自动执行编译，测试，打包等构建过程只需要定义一个pom.xml,然后把源码放到默认的目录，Maven帮我们处理其他事情使用Maven可以进行项目高度自动化构建，依赖管理(这是使用Maven最大的好处)，仓库管理。针对maven介绍到这里。

2.聚合工程搭建

下面我以一个演示demoMall项目为例搭建聚合工程！
分析：

Maven的常见打包方式：jar、war、pom
Pom工程一般都是父工程，管理jar包的版本、maven插件的版本、统一的依赖管理。聚合工程。
demo-parent：父工程，打包方式pom，管理jar包的版本号。
    |           项目中所有工程都应该继承父工程。
|--demo-common：通用的工具类通用的pojo。打包方式jar
|--demo-manager：服务层工程。聚合工程。Pom工程
|--demo-manager-dao：打包方式jar
|--demo-manager-pojo：打包方式jar
|--demo-manager-interface：打包方式jar
|--demo-manager-service：打包方式：jar
    |--demo-manager-web：表现层工程。打包方式war

首先我们先创建一个空的项目，请看下面图中操作：

　然后我们可以看到一个空的项目已经创建成功了。在空项目中 File→Module新建一个patent项目，请看下图。

下面指定自己的maven本地仓库。

下面我们对 demo-parent项目中pom文件进行修改。

demo-parent   pom.xml
<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.demo.mall</groupId>
    <artifactId>demo-parent</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>
    <!-- 集中定义依赖版本号 -->
    <properties>
        <junit.version>4.12</junit.version>
        <spring.version>4.2.4.RELEASE</spring.version>
        <mybatis.version>3.2.8</mybatis.version>
        <mybatis.spring.version>1.2.2</mybatis.spring.version>
        <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
        <mysql.version>5.1.32</mysql.version>
        <slf4j.version>1.6.4</slf4j.version>
        <jackson.version>2.4.2</jackson.version>
        <druid.version>1.0.9</druid.version>
        <httpclient.version>4.3.5</httpclient.version>
        <jstl.version>1.2</jstl.version>
        <servlet-api.version>2.5</servlet-api.version>
        <jsp-api.version>2.0</jsp-api.version>
        <joda-time.version>2.5</joda-time.version>
        <commons-lang3.version>3.3.2</commons-lang3.version>
        <commons-io.version>1.3.2</commons-io.version>
        <commons-net.version>3.3</commons-net.version>
        <pagehelper.version>5.1.4</pagehelper.version>
        <jsqlparser.version>0.9.1</jsqlparser.version>
        <commons-fileupload.version>1.3.1</commons-fileupload.version>
        <jedis.version>2.7.2</jedis.version>
        <solrj.version>4.10.3</solrj.version>
        <dubbo.version>2.5.3</dubbo.version>
        <zookeeper.version>3.4.7</zookeeper.version>
        <zkclient.version>0.1</zkclient.version>
        <activemq.version>5.11.2</activemq.version>
        <freemarker.version>2.3.23</freemarker.version>
        <quartz.version>2.2.2</quartz.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <!-- 时间操作组件 -->
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${joda-time.version}</version>
            </dependency>
            <!-- Apache工具组件 -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-net</groupId>
                <artifactId>commons-net</artifactId>
                <version>${commons-net.version}</version>
            </dependency>
            <!-- Jackson Json处理工具包 -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <!-- httpclient -->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>
            <!-- quartz任务调度框架 -->
            <dependency>
                <groupId>org.quartz-scheduler</groupId>
                <artifactId>quartz</artifactId>
                <version>${quartz.version}</version>
            </dependency>
            <!-- 单元测试 -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>
            <!-- 日志处理 -->
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <!-- Mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis.spring.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.miemiedev</groupId>
                <artifactId>mybatis-paginator</artifactId>
                <version>${mybatis.paginator.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>${pagehelper.version}</version>
            </dependency>
            <!-- MySql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!-- 连接池 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!-- Spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jms</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- JSP相关 -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>${jstl.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>${servlet-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jsp-api</artifactId>
                <version>${jsp-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <!-- 文件上传组件 -->
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>${commons-fileupload.version}</version>
            </dependency>
            <!-- Redis客户端 -->
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>${jedis.version}</version>
            </dependency>
            <!-- solr客户端 -->
            <dependency>
                <groupId>org.apache.solr</groupId>
                <artifactId>solr-solrj</artifactId>
                <version>${solrj.version}</version>
            </dependency>
            <!-- dubbo相关 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>${dubbo.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>${zookeeper.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.sgroschupf</groupId>
                <artifactId>zkclient</artifactId>
                <version>${zkclient.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.activemq</groupId>
                <artifactId>activemq-all</artifactId>
                <version>${activemq.version}</version>
            </dependency>
            <dependency>
                <groupId>org.freemarker</groupId>
                <artifactId>freemarker</artifactId>
                <version>${freemarker.version}</version>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <!-- 资源文件拷贝插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- java编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <!-- 配置Tomcat插件 -->
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

到这里父工程已经搭建好了。
下面我们开始搭建一个公共项目模块同时集成 demo-parent
创建dmeo-common，demo-common继承父工程parent。而且为了与eclipse下面一样一种好看，common工程的目录也是在demoMaven目录下，但是是继承了parent工程
File——>New——>module——>Maven
请看下面图的步骤：

点击编辑pom文件内容。下面改成jar

dmeo-common    pom.xml

<?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>
        <artifactId>e3-parent</artifactId>
        <groupId>com.e3.mall</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../e3-parent/pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>e3-common</artifactId>
    <packaging>jar</packaging>
    <name>e3-common</name>
    <dependencies>
        <!-- 时间操作组件 -->
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
        </dependency>
        <!-- Apache工具组件 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
        </dependency>
        <!-- Jackson Json处理工具包 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <!-- httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- quartz任务调度框架 -->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- 日志处理 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>
    </dependencies>
</project>

到这里 demo-common创建完毕：

创建manager工程，与common工程的方法一样。

File——>New——>module——>Maven
这里就不在重复截图 ，创建完成后直接修改 pom.xml 文件即可

demo -manager pom.xml

<?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>
        <artifactId>demo-parent</artifactId>
        <groupId>com.demo.mall</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../demo-parent/pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>dmeo-manager</artifactId>
    <packaging>pom</packaging>

    <dependencies>
        <dependency>
            <groupId>com.e3.mall</groupId>
            <artifactId>e3-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
    <modules>
        <module>demo-manager-pojo</module>
        <module>demo-manager-dao</module>
        <module>demo-manager-interface</module>
        <module>demo-manager-service</module>
        <module>demo-manager-web</module>
    </modules>
    <build>
        <!-- 配置插件 -->
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8080</port>
                    <path>/</path>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

到这里demo-manager模块搭建完成，现在开始搭建demo-manager子项目
demo-manager — File — Module
1.>>

2.>>

3.>>

最后点击下一步创建成功！
最后修改pom.xm文件

<?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>
       <artifactId>dmeo-manager</artifactId>
       <groupId>com.demo.mall</groupId>
       <version>1.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>

   <artifactId>demo-manager-dao</artifactId>
   <name>demo-manager-dao</name>
   <packaging>jar</packaging>

   <dependencies>
       <dependency>
           <groupId>com.demo.mall</groupId>
           <artifactId>demo-manager-pojo</artifactId>
           <version>1.0-SNAPSHOT</version>
       </dependency>
       <!-- 添加对mybatis的依赖 -->
       <dependency>
           <groupId>org.mybatis</groupId>
           <artifactId>mybatis</artifactId>
       </dependency>
       <dependency>
           <groupId>org.mybatis</groupId>
           <artifactId>mybatis-spring</artifactId>
       </dependency>
       <dependency>
           <groupId>com.github.miemiedev</groupId>
           <artifactId>mybatis-paginator</artifactId>
       </dependency>
       <dependency>
           <groupId>com.github.pagehelper</groupId>
           <artifactId>pagehelper</artifactId>
       </dependency>
       <!-- MySql -->
       <dependency>
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
       </dependency>
       <!-- 连接池 -->
       <dependency>
           <groupId>com.alibaba</groupId>
           <artifactId>druid</artifactId>
       </dependency>

   </dependencies>
   <!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
   <build>
       <resources>
           <resource>
               <directory>src/main/java</directory>
               <includes>
                   <include>**/*.properties</include>
                   <include>**/*.xml</include>
               </includes>
               <filtering>false</filtering>
           </resource>
       </resources>
   </build>
</project>

这里来说明一下，demo-manager-pojo ,demo-manager-interface ,demo-manager-service, demo-manger-web 创建方式跟demo-manger-dao一样，区别就在pom.xml文件
下面开始说，
demo-manager-pojo pom.xml文件

<?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>
       <artifactId>demo-manager</artifactId>
       <groupId>com.demo.mall</groupId>
       <version>1.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>

   <artifactId>demo-manager-pojo</artifactId>
   <version>1.0-SNAPSHOT</version>
   <dependencies>
       <dependency>
           <groupId>org.projectlombok</groupId>
           <artifactId>lombok</artifactId>
           <version>1.16.6</version>
       </dependency>
   </dependencies>
   <packaging>jar</packaging>
   <name>e3-manager-pojo</name>
</project>

demo-manager-interface pom.xml文件

<?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>
       <artifactId>demo-manager</artifactId>
       <groupId>com.demo.mall</groupId>
       <version>1.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>

   <artifactId>demo-manager-pojo</artifactId>
   <version>1.0-SNAPSHOT</version>
   <dependencies>
       <dependency>
           <groupId>org.projectlombok</groupId>
           <artifactId>lombok</artifactId>
           <version>1.16.6</version>
       </dependency>
   </dependencies>
   <packaging>jar</packaging>
   <name>e3-manager-pojo</name>
</project>

demo-manager-service pom.xml文件

<?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>
      <artifactId>demo-manager</artifactId>
      <groupId>com.demo.dmall</groupId>
      <version>1.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>

  <artifactId>demo-manager-service</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>demo-manager-service</name>

  <dependencies>
      <dependency>
          <groupId>com.demo.mall</groupId>
          <artifactId>e3-manager-dao</artifactId>
          <version>1.0-SNAPSHOT</version>
      </dependency>
      <dependency>
          <groupId>com.demo.mall</groupId>
          <artifactId>demo-manager-interface</artifactId>
          <version>1.0-SNAPSHOT</version>
      </dependency>
      <!-- spring的依赖 -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-beans</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aspects</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jms</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context-support</artifactId>
      </dependency>

  </dependencies>
</project>

demo-manger-web pom.xml 文件

<?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>
        <artifactId>demo-manager</artifactId>
        <groupId>com.demo.mall</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>demo-manager-web</artifactId>
    <packaging>war</packaging>
    <dependencies>
        <dependency>
            <groupId>com.demo.mall</groupId>
            <artifactId>demo-manager-service</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!-- JSP相关 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <scope>provided</scope>
        </dependency>
    </dependencies>
</project>

3.SSM框架整合

因为项目比较大这里就不整合了，如果不会请看笔者的 之前写的SSM整合文章点击链接查看SSM整合教程

项目结构图：

注释笔者这里上传的是一个真实项目框架，跟上面有所不同，但是原理操作都是一样的。有问题欢迎留言！
运行结果：

项目Github地址：https://github.com/itomlin/e3Mall.git

最后

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