SpringBoot 2.X數據庫主從配置

本文以MySql為例，介紹SpringBoot2.X相關主從、讀寫分離配置，話不多說，直接上步驟

1、首先進行MySql數據庫主從配置

 

2、添加pom依賴

<!--數據庫讀寫分離配置-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.20</version>
</dependency>
<!--數據庫讀寫分離配置-->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-jdbc-spring-boot-starter</artifactId>
    <version>4.1.1</version>
</dependency>

 

3、application.yml添加如下配置

spring: shardingsphere: datasource:
      names: master,slave
      # 主數據源
      master:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://localhost:3306/test_db?createDatabaseIfNotExist=true&useSSL=false&serverTimezone=Asia/Shanghai&&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
 username: root
        password: abc123456
        initialSize: 10
        minIdle: 10
        maxActive: 30
      # 從數據源
      slave:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://1localhost2:3306/test_db?createDatabaseIfNotExist=true&useSSL=false&serverTimezone=Asia/Shanghai&&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
 username: root
        password: vbf12345
        initialSize: 10 #連接池初始化連接數
        minIdle: 10  #連接池最小連接數
        maxActive: 30  #連接池最大連接數 masterslave:
      # 讀寫分離配置
      load-balance-algorithm-type: round_robin
      # 最終的數據源名稱
      name: dataSource
      # 主庫數據源名稱
      master-data-source-name: master
      # 從庫數據源名稱列表，多個逗號分隔
      slave-data-source-names: slave
    props:
      # 開啟SQL顯示，默認false
      sql:
        show: true

 

4、啟動類設置如下注解

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)//去掉數據源

 

5、測試結果如下：讀取從庫，寫入主庫