1. 建立 Java Working Set：工程多的时候可以展开收缩，方便管理
   

   切换到Package Explorer视图，并点击视图右侧下箭头，选择Working Sets，如下图：
   

2. 建立父工程，将后续子工程公共的Jar包提出来：
   • 选择Working Set，右键New -> Maven Project：
     

   • 选择 Create a simple project，点击下一步
     

   • 创建父工程，父工程名称：thrcloud，Packaging：选择pom
     

   • 父工程建立完成，修改pom.xml文件：
     
     
     pom.xml文件内容如下，springcloud和springboot的版本可以选择比较新的版本对应关系，我这里比较旧：

     <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.thr.springcloud</groupId>
         <artifactId>thrcloud</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <packaging>pom</packaging>
     
         <properties>
             <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
             <maven.compiler.source>1.8</maven.compiler.source>
             <maven.compiler.target>1.8</maven.compiler.target>
             <junit.version>4.12</junit.version>
             <log4j.version>1.2.17</log4j.version>
             <lombok.version>1.18.4</lombok.version>
         </properties>
     
         <dependencyManagement>
             <dependencies>
                 <dependency>
                     <groupId>org.springframework.cloud</groupId>
                     <artifactId>spring-cloud-dependencies</artifactId>
                     <version>Dalston.SR1</version>
                     <type>pom</type>
                     <scope>import</scope>
                 </dependency>
                 <dependency>
                     <groupId>org.springframework.boot</groupId>
                     <artifactId>spring-boot-dependencies</artifactId>
                     <version>1.5.9.RELEASE</version>
                     <type>pom</type>
                     <scope>import</scope>
                 </dependency>
                 <dependency>
                     <groupId>mysql</groupId>
                     <artifactId>mysql-connector-java</artifactId>
                     <version>8.0.14</version>
                 </dependency>
                 <dependency>
                     <groupId>com.alibaba</groupId>
                     <artifactId>druid</artifactId>
                     <version>1.0.31</version>
                 </dependency>
                 <dependency>
                     <groupId>org.mybatis.spring.boot</groupId>
                     <artifactId>mybatis-spring-boot-starter</artifactId>
                     <version>1.3.0</version>
                 </dependency>
                 <dependency>
                     <groupId>ch.qos.logback</groupId>
                     <artifactId>logback-core</artifactId>
                     <version>1.2.3</version>
                 </dependency>
                 <dependency>
                     <groupId>junit</groupId>
                     <artifactId>junit</artifactId>
                     <version>${junit.version}</version>
                     <scope>test</scope>
                 </dependency>
                 <dependency>
                     <groupId>log4j</groupId>
                     <artifactId>log4j</artifactId>
                     <version>${log4j.version}</version>
                 </dependency>
             </dependencies>
         </dependencyManagement>
     
     </project>

      

3. 建立公共子模块 thrcloud-api：

   • 鼠标右键 thrc