终于有时间搞java了，今天使用IDEA基于maven搭建了多模块聚合工程，经过了多番尝试，终于成功啦！

一.工程目录


下面是搭建之后的目录





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先看一下目录关系

taotao-parent（父工程管理jar包的版本）

（把通用的工具类打包）

（继承父工程）

      |-taotao-manager-pojo

      |-taotao-manager-dao

      |-taotao-manager-service

（war包）

taotao-parent 为项目的父工程，用来管理jar包及版本

taotao-common为通用工程，继承父工程，就是把通用的工具类打包

taotao-manager为开发工程，同样继承父工程

其中，taotao-manager-pojo，taotao-manager-dao，taotao-manager-service和taotao-manager-web均为开发工程的一个子模块，依赖于开发工程taotao-manager

前3个子模块打成jar包，taotao-manager-web打成war包

二.创建工程


1.先创建一个空工程，步骤如下：


File——>new——>project


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选择Empty——>next

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填写工程名称和位置，点击finnish，完成了空工程的创建

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2.创建父工程 taotao-parent，步骤如下：

File——>New——>Module

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点maven，勾选archetype，选quickstart这项，然后Next下一步

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填写GroupId，一般为组织名称；填写ArtifactId，为项目名称

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选择本地maven目录及maven配置文件

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填写项目名称及位置，点Finish，父工程创建完成

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等待生成pom文件，修改打包方式为pom，pom文件为：

<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.slx</groupId>
  <artifactId>taotao-parent</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>pom</packaging>

  <name>taotao-parent</name>
  <url>http://maven.apache.org</url>

  <!-- 集中定义依赖版本号 -->
  <properties>
    <junit.version>4.12</junit.version>
    <spring.version>4.1.3.RELEASE</spring.version>
    <mybatis.version>3.2.8</mybatis.version>
    <!--省略，自行添加-->
  </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>
      <!--省略，自行添加-->
  </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>3.5.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</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>


3.创建通用工程taotao-common

File——>New——>Module

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点maven后直接next下一步

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继承taotao-parent,填写ArtifactId,然后next下一步

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填写通用模块名称，点finish，通用模块创建完成

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开发模块taotao-manager与通用模块创建方式一致

taotao-common的pom.xml

<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">
    <parent>
        <artifactId>taotao-parent</artifactId>
        <groupId>com.slx</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../taotao-parent/pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>taotao-common</artifactId>
    <packaging>jar</packaging>

    <name>taotao-common</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <!-- 添加依赖 -->
    <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>
        <!--省略，自行添加-->
        </dependency>
    </dependencies>
</project>


taotao-manager的pom.xml 

<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">
    <parent>
        <artifactId>taotao-parent</artifactId>
        <groupId>com.slx</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../taotao-parent/pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>taotao-manager</artifactId>
    <packaging>pom</packaging>
    <name>taotao-manager</name>
    <url>http://maven.apache.org</url>
    <modules>
        <module>taotao-manager-pojo</module>
        <module>taotao-manager-dao</module>
        <module>taotao-manager-service</module>
        <module>taotao-manager-web</module>
    </modules>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <!-- 添加依赖 -->
    <dependencies>
        <dependency>
            <groupId>com.slx</groupId>
            <artifactId>taotao-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

    <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>





4.创建开发模块下的子模块，分两类介绍，taotao-manager-pojo，taotao-manager-dao，taotao-manager-service创建方式一样，taotao-manager-web的创建有点差别

1）以taotao-manager-pojo为例

File——>new——>module

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选maven——>勾选archetype——>选quickstart这项——>点next

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继承taotao-manager，填写ArtifactId

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这里注意改写路径，点finish，一个子模块创建完成

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taotao-manager-pojo的pom.xml

<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>taotao-manager</artifactId>
        <groupId>com.slx</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>taotao-manager-pojo</artifactId>
    <packaging>jar</packaging>

    <name>taotao-manager-pojo</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

</project>



taotao-manager-dao的pom.xml 

<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>taotao-manager</artifactId>
        <groupId>com.slx</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>taotao-manager-dao</artifactId>
    <packaging>jar</packaging>

    <name>taotao-manager-dao</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!-- 依赖与pojo子模块 -->
        <dependency>
            <groupId>com.slx</groupId>
            <artifactId>taotao-manager-pojo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!-- Mybatis -->
        <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>
</project>



taotao-manager-service的pom.xml 

<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>taotao-manager</artifactId>
        <groupId>com.slx</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>taotao-manager-service</artifactId>
    <packaging>jar</packaging>

    <name>taotao-manager-service</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.slx</groupId>
            <artifactId>taotao-manager-dao</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <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-context-support</artifactId>
        </dependency>
    </dependencies>
</project>



2）taotao-manager-web创建

同样File——>New——>Module

只不过这里选择webapp这项（唯一不同的地方，其他地方类似），点next下一步

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同样继承taotao-manager

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同样需要改写路径，点击finish，taotao-manager-web子模块创建完成

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taotao-manager-web的pom.xml

<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">
    <parent>
        <artifactId>taotao-manager</artifactId>
        <groupId>com.slx</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>taotao-manager-web</artifactId>
    <packaging>war</packaging>
    <name>taotao-manager-web Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <!-- 添加依赖 -->
    <dependencies>
        <dependency>
            <groupId>com.slx</groupId>
            <artifactId>taotao-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>
        <!-- 文件上传组件 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
        </dependency>
    </dependencies>
    <build>
        <finalName>taotao-manger-web</finalName>
    </build>
</project>




5.接下来运行工程使用：tomcat7:run

右上角Edit Configurations

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选maven

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需要把taotao-parent等需要安装的都安装到本地仓库。

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最后运行，如下图所示，就说明跑通了！

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总结：

之前看别人的博客，有选择portlet项，自己弄死活跑不通。

taotao-parent,taotao-manager-pojo,taotao-manager-dao,taotao-manager-service选择quickstart那项；

taotao-common，taotao-manager啥都不选；

taotao-manager-web选择webapp那项。

还要注意打包方式，jar，pom，war