Maven聚合项目管理(前后端分离管理)

通过Maven项目管理创建前后端分离开发环境。
1 父项目上一定要有

  <modules>
    <module>manager-pojo</module>
    <module>manager-mapper</module>
    <module>manager-service</module>
    <module>manager-web</module>
  </modules>

2 子项目一定要有

manager
com.zxf
1.0-SNAPSHOT

如果以上2点没有声明，那么父子自己就无法继承jar包

3 父项目中需要定义统一的版本管理

  <properties>
    <junit.version>4.12</junit.version>
    <spring.version>4.1.3.RELEASE</spring.version>
    <mybatis.version>3.2.8</mybatis.version>
    <mybatis.spring.version>1.2.2</mybatis.spring.version>
    <mysql.version>5.1.32</mysql.version>
    <druid.version>1.0.9</druid.version>
    <jstl.version>1.2</jstl.version>
    <servlet.version>2.5</servlet.version>
    <jsp.version>2.0</jsp.version>
    <tomcat.version>2.2</tomcat.version>
  </properties>

 <dependencyManagement>

      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>${junit.version}</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-test</artifactId>
          <version>${spring.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>
        <!--mysql-->
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>${mysql.version}</version>
        </dependency>
        <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>druid</artifactId>
          <version>${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-jdbc</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-aspects</artifactId>
          <version>${spring.version}</version>
        </dependency>
        <!--jsp&servlet-->
        <dependency>
          <groupId>jstl</groupId>
          <artifactId>jstl</artifactId>
          <version>${jstl.version}</version>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>servlet-api</artifactId>
          <version>${servlet.version}</version>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jsp-api</artifactId>
          <version>${jsp.version}</version>
        </dependency>

       </dependencies>
    </dependencyManagement>

其中在父项目中加入了


标签表示，子类不能直接引用和继承
如果在子类中引用，可以这样写

 <dependencies>
      <dependency>
          <groupId>com.zxf</groupId>
          <artifactId>manager-pojo</artifactId>
          <version>1.0-SNAPSHOT</version>
      </dependency>
      <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
      </dependency>
      <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>

      </dependency>
      <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>

      </dependency>
      <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>druid</artifactId>

      </dependency>

  </dependencies>

记住这里不要写版本号，这样就动态的继承了父项目的JAR包了，父项目可以随意更改版本号，子项目也动态更新了。