springboot 整合 Shardingsphere 4.0 分库分表+读写分离

个人开源项目

• springboot+mybatis+thymeleaf+docker构建的个人站点开源项目（集成了个人主页、个人作品、个人博客）
• 企业级延迟任务方案之RabbitMQ死信队列

基础依赖

• 本文的基础依赖博主上一篇博文：springboot 整合 Shardingsphere 4.0 分库分表
• 需要配置数据库的主从复制，可以搜索相关的文章，记得带上数据库的版本号，各个大的版本之间有差异；

推荐关于mysql8.0数据库主从复制亲测可行的配置：https://blog.csdn.net/zyhlwzy/article/details/80569422

修改上一篇博客的配置文件即可实现分库分表+读写分离

修改配置

server.port=8097


spring.shardingsphere.datasource.names=master0,master1,master0slave0,master1slave0

spring.shardingsphere.datasource.master0.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.master0.driver-class-name=com.mysql.cj.jdbc.Driver
spring.shardingsphere.datasource.master0.jdbc-url=jdbc:mysql://127.0.0.1:3306/ds0?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&characterSetResults=utf8&useSSL=false&verifyServerCertificate=false&autoReconnct=true&autoReconnectForPools=true&allowMultiQueries=true
spring.shardingsphere.datasource.master0.username=root
spring.shardingsphere.datasource.master0.password=root

spring.shardingsphere.datasource.master0slave0.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.master0slave0.driver-class-name=com.mysql.cj.jdbc.Driver
spring.shardingsphere.datasource.master0slave0.jdbc-url=jdbc:mysql://127.0.0.1:3307/ds0?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&characterSetResults=utf8&useSSL=false&verifyServerCertificate=false&autoReconnct=true&autoReconnectForPools=true&allowMultiQueries=true
spring.shardingsphere.datasource.master0slave0.username=root
spring.shardingsphere.datasource.master0slave0.password=root

spring.shardingsphere.datasource.master1.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.master1.driver-class-name=com.mysql.cj.jdbc.Driver
spring.shardingsphere.datasource.master1.jdbc-url=jdbc:mysql://127.0.0.1:3306/ds1?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&characterSetResults=utf8&useSSL=false&verifyServerCertificate=false&autoReconnct=true&autoReconnectForPools=true&allowMultiQueries=true
spring.shardingsphere.datasource.master1.username=root
spring.shardingsphere.datasource.master1.password=root

spring.shardingsphere.datasource.master1slave0.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.master1slave0.driver-class-name=com.mysql.cj.jdbc.Driver
spring.shardingsphere.datasource.master1slave0.jdbc-url=jdbc:mysql://127.0.0.1:3307/ds1?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&characterSetResults=utf8&useSSL=false&verifyServerCertificate=false&autoReconnct=true&autoReconnectForPools=true&allowMultiQueries=true
spring.shardingsphere.datasource.master1slave0.username=root
spring.shardingsphere.datasource.master1slave0.password=root

spring.shardingsphere.sharding.tables.t_order.actual-data-nodes=ds$->{0..1}.t_order$->{0..1}
spring.shardingsphere.sharding.tables.t_order.table-strategy.inline.sharding-column=order_id
spring.shardingsphere.sharding.tables.t_order.table-strategy.inline.algorithm-expression=t_order$->{order_id % 2}
spring.shardingsphere.sharding.tables.t_order.key-generator.column=order_id
spring.shardingsphere.sharding.tables.t_order.key-generator.type=SNOWFLAKE

spring.shardingsphere.sharding.default-database-strategy.inline.sharding-column=user_id
spring.shardingsphere.sharding.default-database-strategy.inline.algorithm-expression=ds$->{user_id % 2}

spring.shardingsphere.sharding.master-slave-rules.ds0.master-data-source-name=master0
spring.shardingsphere.sharding.master-slave-rules.ds0.slave-data-source-names=master0slave0
spring.shardingsphere.sharding.master-slave-rules.ds1.master-data-source-name=master1
spring.shardingsphere.sharding.master-slave-rules.ds1.slave-data-source-names=master1slave0

# 打印执行的数据库以及语句
spring.shardingsphere.props.sql.show=true
spring.main.allow-bean-definition-overriding=true

# mybatis-plus
mybatis-plus.mapper-locations=classpath:/mapper/*.xml
mybatis-plus.configuration.jdbc-type-for-null='null'