一 springboot搭建多模块规则
1.1 规则描述
1.父pom.xml 打包方式,jar要更改为pom,build 需要更改
2.不需要打包的模块pom.xml文件中不要写<build>,全删掉,例如有些工程中的common模块,domain模块,dao模块,service模 块都不需要打包
3.在子模块中需要声明父工程,填写父工程位置<relativePath>../pom.xml</relativePath>
4.关于applicatin.properties配置文件,只需要在启动的模块中配置就可以了,
5.关于打包为什么打包jar包,不打war包,打war包目的是war包可以运行在tomcat下,但是SpringBoot是内置tomcat,如果你打war包,前提是干掉内置的tomcat,然后才能打包,各种麻烦,直接打包可执行jar包,使用java -jar 命令就可以完美的运行起来很方便!
6.对象之间的调用是使用@Autowired 注解 来实现注入。
1.2 打比方案例说明
多模块搭建,首先肯定得有一个父工程,还有若干个子模块,子模块可以理解为,可以继承父模块
整个工程你就当作一个公司,父工程(退休了什么也不干)只需要声明有几个儿子(子模块)就完事了,
假设让子模块api作为程序启动模块,子模块api声明父工程是谁,就当他是大儿子,公司他管事,pom.xml文件需要打包,需要build配置,需要其它子模块协助。
其它子模块声明父工程是谁,之间关系都是兄弟,不需要打包,哪里需要去哪里!
二 操作案例
2.1 首先创建一个父模块
1.首先创建一个父模块:huadian-multil-model
2.将工程中的src进行删除
2.2 创建需要的各个子模块
1.创建api,domain,common,dao,service等模块
选中父工程,右键 new module,如下图:
2.最后创建的工程如下:
2.3 各个模块的关系
父模块: huadian-multil-model
子模块: huadian-api (页面交互接收、传递数据,唯一有启动类的模块)
huadian-common 一些常用工具类
huadian-domain (实体类)
huadian-services (处理业务逻辑)
huadian-dao (用于持久化数据跟数据库交互)
调用关系: huadian-api 依赖 huadian-common、huadian-domain、 huadian-services、huadian-dao
huadian-services 依赖 huadian-common、huadian-domain、 huadian-dao
huadian-dao 依赖 huadian-common、huadian-domain
huadian-common 依赖 huadian-domain
2.4 各个模块的pom文件
2.4.1 父模块
<?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>
<modules>
<module>huadian-api</module>
<module>huadian-common</module>
<module>huadain-service</module>
<module>huadian-domain</module>
<module>huadian-dao</module>
</modules>
<!--指定项目的spring boot的版本-->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<!--版本号-->
<groupId>com.huadian</groupId>
<artifactId>huadian-multil-model</artifactId>
<packaging>pom</packaging> <!--父类为pom-->
<version>1.0-SNAPSHOT</version>
<name>huadian-multil-model</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<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>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--指定项目中的公有依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<!-- 阿里云maven仓库 -->
<repositories>
<repository>
<id>public</id>
<name>aliyun nexus</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<skipTests>true</skipTests> <!--默认关掉单元测试 -->
</configuration>
</plugin>
</plugins>
</build>
</project>
2.4.2 api子模块
<?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>
<!--声明父模块-->
<parent>
<groupId>com.huadian</groupId>
<artifactId>huadian-multil-model</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<!-- api子模块 -->
<groupId>com.huadian</groupId>
<artifactId>huadian-api</artifactId>
<version>1.0-SNAPSHOT</version>
<name>huadian-api</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<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>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--依赖domain模块-->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-domain</artifactId>
<version>1.0-SNAPSHOT</version>
<!-- <version>${project.parent.version}</version> -->
</dependency>
<!-- 依赖common模块 -->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- serverice子模块 -->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadain-service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- 依赖dao模块 -->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-dao</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<!-- 指定该Main Class为全局的唯一入口 -->
<mainClass>com.huadian.App</mainClass>
<layout>ZIP</layout>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal><!--可以把依赖的包都打包到生成的Jar包中-->
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
2.4.3 service子模块
<?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>
<!--声明父模块-->
<parent>
<groupId>com.huadian</groupId>
<artifactId>huadian-multil-model</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<!-- serverice子模块 -->
<groupId>com.huadian</groupId>
<artifactId>huadain-service</artifactId>
<version>1.0-SNAPSHOT</version>
<name>huadain-service</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<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>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!--依赖domain模块-->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-domain</artifactId>
<version>1.0-SNAPSHOT</version>
<!-- <version>${project.parent.version}</version> -->
</dependency>
<!-- 依赖common模块 -->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- 依赖dao模块 -->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-dao</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
2.4.4 dao子模块
<?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>
<!--声明父模块-->
<parent>
<groupId>com.huadian</groupId>
<artifactId>huadian-multil-model</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<!-- 子模块 -->
<groupId>com.huadian</groupId>
<artifactId>huadian-dao</artifactId>
<version>1.0-SNAPSHOT</version>
<name>huadian-dao</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<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>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--依赖domain模块-->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-domain</artifactId>
<version>1.0-SNAPSHOT</version>
<!-- <version>${project.parent.version}</version> -->
</dependency>
</dependencies>
</project>
2.4.5 common子模块
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<!--声明父模块-->
<parent>
<groupId>com.huadian</groupId>
<artifactId>huadian-multil-model</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<!-- common 子模块 -->
<groupId>com.huadian</groupId>
<artifactId>huadian-common</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>huadian-common</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--依赖domain模块-->
<dependency>
<groupId>com.huadian</groupId>
<artifactId>huadian-domain</artifactId>
<version>1.0-SNAPSHOT</version>
<!-- <version>${project.parent.version}</version> -->
</dependency>
</dependencies>
</project>
2.4.6 domain子模块
<?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>
<modules>
<module>huadian-api</module>
<module>huadian-common</module>
<module>huadain-service</module>
<module>huadian-domain</module>
<module>huadian-dao</module>
</modules>
<!--指定项目的spring boot的版本-->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<!--版本号-->
<groupId>com.huadian</groupId>
<artifactId>huadian-multil-model</artifactId>
<packaging>pom</packaging> <!--父类为pom-->
<version>1.0-SNAPSHOT</version>
<name>huadian-multil-model</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<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>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--指定项目中的公有依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<!-- 阿里云maven仓库 -->
<repositories>
<repository>
<id>public</id>
<name>aliyun nexus</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<skipTests>true</skipTests> <!--默认关掉单元测试 -->
</configuration>
</plugin>
</plugins>
</build>
</project>
2.5 测试
三 打包
1.不能在api模块package,需要在父模块下,一起打包,如下图
2. 这个时候api模块已经打好包,进入target下执行java -jar
参考:https://blog.csdn.net/baidu_41885330/article/details/81875395
源代码见github