1.建立父类maven项目dmk

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1.1父模块的pom.xm;

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  6.  <!-- 继承说明：这里继承SpringBoot提供的父工程 --> 
  7.     <parent>
  8.         <groupId>org.springframework.boot</groupId>
  9.         <artifactId>spring-boot-starter-parent</artifactId>
  10.         <version>2.3.1.RELEASE</version>
  11.         <relativePath/> <!-- lookup parent from repository -->
  12.     </parent>
  13.   <!--工程说明-->
  14.     <groupId>org.javaboy</groupId>
  15.     <artifactId>dmk5</artifactId>
  16.     <packaging>pom</packaging>
  17.     <version>1.0-SNAPSHOT</version>
  18.     <modules>
  19.         <module>mm-web</module>
  20.         <module>mm-service</module>
  21.         <module>mm-mapper</module>
  22.         <module>mm-dao</module>
  23.     </modules>
  24.     <!-- 版本说明：这里统一管理依赖的版本号  此处可加计不加-->
  25.     <dependencyManagement>
  26.         <dependencies>
  27.             <dependency>
  28.                 <groupId>org.springframework</groupId>
  29.                 <artifactId>spring-context</artifactId>
  30.                 <version>5.2.7.RELEASE</version>
  31.                 <scope>compile</scope>
  32.             </dependency>
  33.             <dependency>
  34.                 <groupId>org.javaboy</groupId>
  35.                 <artifactId>mm-web</artifactId>
  36.                 <version>1.0-SNAPSHOT</version>
  37.             </dependency>
  38.             <dependency>
  39.                 <groupId>org.javaboy</groupId>
  40.                 <artifactId>mm-service</artifactId>
  41.                 <version>1.0-SNAPSHOT</version>
  42.             </dependency>
  43.             <dependency>
  44.                 <groupId>org.javaboy</groupId>
  45.                 <artifactId>mm-mapper</artifactId>
  46.                 <version>1.0-SNAPSHOT</version>
  47.             </dependency>
  48.             <dependency>
  49.                 <groupId>org.javaboy</groupId>
  50.                 <artifactId>mm-dao</artifactId>
  51.                 <version>1.0-SNAPSHOT</version>
  52.             </dependency>
  54.             <dependency>
  55.                 <groupId>org.springframework.boot</groupId>
  56.                 <artifactId>spring-boot-starter-web</artifactId>
  57.                 <version>2.3.1.RELEASE</version>
  58.                 <scope>compile</scope>
  59.             </dependency>
  61.             <dependency>
  62.                 <groupId>mysql</groupId>
  63.                 <artifactId>mysql-connector-java</artifactId>
  64.                 <version>5.1.42</version>
  65.             </dependency>
  66.         </dependencies>
  67.     </dependencyManagement>
  69. </project>

2.右键单击父模块建立子模块

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2.1web的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>dmk5</artifactId>
  7.         <groupId>org.javaboy</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <artifactId>mm-web</artifactId>
  13.   <!--信息的说明也可以详细点-->
  14.   <!--<modelVersion>4.0.0</modelVersion>-->
  15. <!--<groupId>org.javaboy</groupId>-->
  16. <!--<artifactId>mm-web</artifactId>-->
  17. <!--<version>1.0-SNAPSHOT</version>-->
  18. <!--<packaging>jar</packaging>-->
  20.     <dependencies>
  21.       <!--spring启动文件 ，如果没有此依赖会导致项目无法启动-->
  22.         <dependency>
  23.             <groupId>org.springframework.boot</groupId>
  24.             <artifactId>spring-boot-starter-web</artifactId>
  25.         </dependency>
  26.       <!--spring boot启动包所需注解的依赖 @SpringBootApplication-->
  27.         <dependency>
  28.             <groupId>org.springframework.boot</groupId>
  29.             <artifactId>spring-boot-autoconfigure</artifactId>
  30.             <version>2.3.1.RELEASE</version>
  31.         </dependency>
  32.      <!--引入service层-->
  33.         <dependency>
  34.             <groupId>org.javaboy</groupId>
  35.             <artifactId>mm-service</artifactId>
  36.             <version>1.0-SNAPSHOT</version>
  37.             <scope>compile</scope>
  38.         </dependency>
  39.                 <!--连接数据库所需的包-->
  40.         <dependency>
  41.             <groupId>mysql</groupId>
  42.             <artifactId>mysql-connector-java</artifactId>
  43.         </dependency>
  44.         <dependency>
  45.             <groupId>mysql</groupId>
  46.             <artifactId>mysql-connector-java</artifactId>
  47.             <version>8.0.20</version>
  48.             <!--运行时才生去匹配需要什么版本的包-->
  49.             <!--<scope>runtime</scope>-->
  50.           <!--直接说明需要什么版本的包-->
  51.             <!--<version>5.1.47</version>-->
  52.         </dependency>
  53.             <!--阿里的数据库连接池-->
  54.         <dependency>
  55.             <groupId>com.alibaba</groupId>
  56.             <artifactId>druid-spring-boot-starter</artifactId>
  57.             <version>1.1.10</version>
  58.         </dependency>
  59.       <!--测试类的依赖，测试包的坑见java爬坑-->
  60.         <dependency>
  61.             <groupId>org.springframework.boot</groupId>
  62.             <artifactId>spring-boot-starter-test</artifactId>
  63.             <scope>test</scope>
  64.         </dependency>
  65.     </dependencies>
  68. </project>

2.2service的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>dmk5</artifactId>
  7.         <groupId>org.javaboy</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <artifactId>mm-service</artifactId>
  13.     <!--信息的说明也可以详细点-->
  14.   <!--<modelVersion>4.0.0</modelVersion>-->
  15.     <!--<groupId>org.javaboy</groupId>-->
  16.     <!--<artifactId>mm-service</artifactId>-->
  17.     <!--<version>1.0-SNAPSHOT</version>-->
  18.     <!--<packaging>jar</packaging>-->
  19.     <dependencies>
  20.       <!--注解所使用的包-->
  21.         <dependency>
  22.             <groupId>org.springframework</groupId>
  23.             <artifactId>spring-context</artifactId>
  24.             <version>5.2.7.RELEASE</version>
  25.         </dependency>
  26.       <!--引入mapper-->
  27.         <dependency>
  28.             <groupId>org.javaboy</groupId>
  29.             <artifactId>mm-mapper</artifactId>
  30.             <version>1.0-SNAPSHOT</version>
  31.             <scope>compile</scope>
  32.         </dependency>
  33.     </dependencies>
  34. </project>

2.3mapper的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>dmk5</artifactId>
  7.         <groupId>org.javaboy</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <artifactId>mm-mapper</artifactId>
  13.     <!--信息的说明也可以详细点-->
  14.   <!--<modelVersion>4.0.0</modelVersion>-->
  15.     <!--<groupId>org.javaboy</groupId>-->
  16.     <!--<artifactId>mm-mapper</artifactId>-->
  17.     <!--<version>1.0-SNAPSHOT</version>-->
  18.     <!--<packaging>jar</packaging>-->
  19.     <dependencies>
  20.       <!--mybatis和spring整合使用的包  import org.apache.ibatis.annotations.Mapper; 此处用来使用mapper注解-->
  21.         <dependency>
  22.             <groupId>org.mybatis.spring.boot</groupId>
  23.             <artifactId>mybatis-spring-boot-starter</artifactId>
  24.             <version>2.1.1</version>
  25.         </dependency>
  26.       <!--spring注解所使用的包Component-->
  27.         <dependency>
  28.             <groupId>org.springframework</groupId>
  29.             <artifactId>spring-context</artifactId>
  30.             <version>5.2.7.RELEASE</version>
  31.             <scope>compile</scope>
  32.         </dependency>
  33.         <dependency>
  34.             <groupId>org.javaboy</groupId>
  35.             <artifactId>mm-dao</artifactId>
  36.             <version>1.0-SNAPSHOT</version>
  37.             <scope>compile</scope>
  38.         </dependency>
  39.     </dependencies>
  42. </project>

2.4dao的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>dmk5</artifactId>
  7.         <groupId>org.javaboy</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <artifactId>mm-dao</artifactId>
  13.     <!--信息的说明也可以详细点-->
  14.   <!--<modelVersion>4.0.0</modelVersion>-->
  15.     <!--<groupId>org.javaboy</groupId>-->
  16.     <!--<artifactId>mm-dao</artifactId>-->
  17.     <!--<version>1.0-SNAPSHOT</version>-->
  18.     <!--<packaging>jar</packaging>-->
  20. </project>

2.5启动类编写

在web项目下建立启动类

  1. package org.javaboy.dmk5;
  3. import org.springframework.boot.SpringApplication;
  4. import org.springframework.boot.autoconfigure.SpringBootApplication;
  6. /**
  7.  * @ClassName MmWebApplication
  8.  * @Description
  9.  * @Author find me
  10.  * @Date 2020/7/4 0004 0:23
  11.  * @Version 1.0
  12.  */
  13. @SpringBootApplication
  14. public class MmWebApplication {
  16.     public static void main(String[] args) {
  17.         SpringApplication.run(MmWebApplication.class, args);
  18.     }
  19. }

2.6打包运行

注意，打包的时候不能直接对web项目进行打包 需要先对dkm5进行打包，然后在对web项目进行打包，否则会失败 在父项目下有的子项目在首次运行clean 和install前应该先运行父项目的clean和install