首先创建一个maven工程

pom.xml文件配置

<?xml version="1.0" encoding="UTF-8"?>


  4.0.0

  edu.dj.springcloud
  cloud2020
  1.0-SNAPSHOT
  pom

  
    UTF-8
    1.8
    1.8
    4.12
    1.2.17
    1.16.18
    >8.0.25
    1.2.8
    2.2.0
  

  
    
      
        org.springframework.boot
        spring-boot-dependencies
        2.2.2.RELEASE
        pom
        import
      

      
        org.springframework.cloud
        spring-cloud-dependencies
        Hoxton.SR1
        pom
        import
      

      
        com.alibaba.cloud
        spring-cloud-alibaba-dependencies
        2.1.0.RELEASE
        pom
        import
      
      
        mysql
        mysql-connector-java
        ${mysql.version}
      
      
        com.alibaba
        druid
        ${druid.version}
      
      
        org.mybatis.spring.boot
        mybatis-spring-boot-starter
        ${mybatis.spring.boot.version}
      
    
  

微服务模块：

1. 建module
2. 改pom
3. 写配置yml/properties
4. 主启动
5. 业务逻辑