一、创建父工程

二、顶级Pom文件中引入依赖

	<!--Spring Boot-->
	<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.5.RELEASE</version>
    </parent>

	<!--依赖-->
	<dependencies>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-web</artifactId>
       </dependency>

       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-test</artifactId>
       </dependency>

       <dependency>
           <groupId>org.projectlombok</groupId>
           <artifactId>lombok</artifactId>
           <optional>true</optional>
       </dependency>
   </dependencies>

	<!--Spring Cloud 依赖-->
    <dependencyManagement>
        <dependencies>
            <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies -->
            <!-- Spring Cloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR8</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- Spring Cloud Alibaba -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.3.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

三、创建子模块（Spring Boot项目）

四、子模块相关配置。

1、application.yml配置文件

server:
  port: 7101

spring:
  application:
    name: a-server

2、BServerApplication启动类

package com.test.a;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author He PanFu
 * @date 2022-03-07 11:05:11
 */
@SuppressWarnings("ALL")
@SpringBootApplication
@RestController
public class AServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(AServerApplication.class, args);
    }

    @GetMapping(value = "/index")
    public String register() {
        return "index";
    }
}

四、问题总结