一篇文章教你搞定，怎么建立多模块springboot项目

话不多说，直接开始！！！

①先建立父模块model：

然后把src，.idea删除：

右击项目，如图：

②建立子项目model1：

③像步骤二一样依次建立好model2，model3，如图：

④把test删除，把java，resources目录依次设置为Sources root，Ressoures roo：

如图：

⑤如果你想在model2里面在设置子模块，如图设置：

⑥在这个工程里面我们只取model1和model-biz的resources，把其他resoures和test全部删除：

model1下面建立如下模块：

model2-api如下：

model-biz如下：

model3如下：

⑦文件配置：

MSPApplication.class:

package com.fzf.msp;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author fanZhiFei
 * @create 2022/7/10
 */
@SpringBootApplication
public class MSPApplication {
    public static void main(String[] args) {
        SpringApplication.run(MSPApplication.class,args);
    }
}

application.yml:

spring:
  application:
    name: model

mybatis-plus:
  #xml文件位置
  mapper-locations: classpath*:/mapper/*Mapper.xml

server:
  port: 8889

model1的pom:

<?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">
    <parent>
        <artifactId>model</artifactId>
        <groupId>com.fzf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>model1</artifactId>

    <dependencies>
        <!--starter-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>2.6.7</version>
        </dependency>
        <!--进行web开发-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.6.7</version>
        </dependency>
    </dependencies>
</project>

model2-api的pom：

<?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">
    <parent>
        <artifactId>model2</artifactId>
        <groupId>com.fzf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>model2-api</artifactId>


</project>

model-biz的pom：

<?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">
    <parent>
        <artifactId>model2</artifactId>
        <groupId>com.fzf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>model2-biz</artifactId>


</project>

model2的pom：

<?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">
    <parent>
        <artifactId>model</artifactId>
        <groupId>com.fzf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>model2</artifactId>
    <packaging>pom</packaging>
    <modules>
        <module>model2-api</module>
        <module>model2-biz</module>
    </modules>


</project>

model3的pom：

<?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">
    <parent>
        <artifactId>model</artifactId>
        <groupId>com.fzf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>model3</artifactId>


</project>

model的pom：

<?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>

    <groupId>com.fzf</groupId>
    <artifactId>model</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>model1</module>
        <module>model2</module>
        <module>model3</module>
    </modules>

    <!-- parent指明继承关系，给出被继承的父项目的具体信息-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
</project>

ok，整个项目大功告成，可以愉快的编写分离的模块的业务代码了：