瑞吉点餐 day03 技术点一: mysql主从复制配置

1.依赖：

<dependency>
　　<groupId>org.apache.shardingsphere</groupId>
　　<artifactId>sharding-jdbc-spring-boot-starter</artifactId>
　　<version>4.0.0-RC1</version>
</dependency>

2. yml配置

spring: 
  shardingsphere:
    datasource:
      names:
        master,slave
      # 主数据源
      master:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://Ip:3306/reggie?characterEncoding=utf-8
        username: xxxxxxxxxxxxxxxxxxxxxx
        password: xxxxxxxxxxxxxxxxxxxxx
      # 从数据源
      slave:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://ip:3306/reggie?characterEncoding=utf-8
        username: xxxxxxxxxxxxxxxxxxxxx
        password: xxxxxxxxxxxxxxxxxxxxx
    masterslave:
      # 读写分离配置
      load-balance-algorithm-type: round_robin #轮询
      # 最终的数据源名称
      name: dataSource
      # 主库数据源名称
      master-data-source-name: master
      # 从库数据源名称列表，多个逗号分隔
      slave-data-source-names: slave
    props:
      sql:
        show: true #开启SQL显示，默认false

3.增加yml配置

spring:  
  main:
    allow-bean-definition-overriding: true #如果当前项目中存在同名的bean,后定义的bean会覆盖先定义的