工程结构:
????父模块 multimodule-parent:
????????子模块 multimodule-core
????????子模块 multimodule-web(web,唯一有启动类的模块)
????关系:
????????multimodule-web依赖 multimodule-core (需要把multimodule-core 包打到multimodule-web中)
接下来,把src整个删掉,父工程不需要,因为父工程你就当它只有一个外壳就完了

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.multimodule</groupId>
<artifactId>multimodule-parent</artifactId>
<version>1.0.0</version>
<packaging>pom</packaging>
<name>multimodule</name>
<description>多模块项目父模块</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.3.RELEASE</version>
</parent>
<dependencies>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
</dependencies>
<modules>
<module>multimodule-core</module>
<module>multimodule-web</module>
</modules>
</project>
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example.multimodule</groupId>
<artifactId>multimodule-parent</artifactId>
<version>1.0.0</version>
</parent>
<artifactId>multimodule-core</artifactId>
</project>
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example.multimodule</groupId>
<artifactId>multimodule-parent</artifactId>
<version>1.0.0</version>
</parent>
<artifactId>multimodule-web</artifactId>
<packaging>jar</packaging>
<name>multimodule-web</name>
<description>multimodule-web依赖 multimodule-core </description>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.example.multimodule</groupId>
<artifactId>multimodule-core</artifactId>
<version>1.0.0</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.example.multimodule.web.WebApplication</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>
package com.example.multimodule.core;
public class CoreTest {
public String show() {
return "这是一个子模块core";
}
}
package com.example.multimodule.web;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class WebApplication {
public static void main(String[] args) throws Exception {
SpringApplication.run(WebApplication.class, args);
}
}
package com.example.multimodule.web;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import com.example.multimodule.core.CoreTest;
@RestController
public class WebTestController {
@GetMapping("/show")
public String test() {
CoreTest c=new CoreTest();
return c.show();
}
}
? ?右键multimodule-core项目,选择Maven install

复制打包成功的multimodule-web-1.0.0.jar,把它拷贝到一个目录

访问http://localhost:8080/show 地址(默认不带项目名),返回结果如下,证明最后的multimodule-web-1.0.0.jar包把要依赖的multimodule-core包,也打进去,并且整个springboot 项目打包成功.

原文:https://www.cnblogs.com/h-z-y/p/14605604.html