实验环境

SpringBoot 版本：2.2.2.RELEASE

Shardingsphere 版本：4.0.0-RC3

实验说明

数据库：demo_ds_0，demo_ds_1

表结构：在 demo_ds_0 和 demo_ds_1 中分别创建 user 表，字段包括 id（主键），name、uid、school 和 age

CREATE TABLE `user` (    `id` bigint(255) NOT NULL AUTO_INCREMENT,    `name` varchar(255) DEFAULT NULL,    `uid` varchar(255) DEFAULT NULL,    `school` varchar(255) DEFAULT NULL,    `age` int(11) DEFAULT NULL,    PRIMARY KEY (`id`))

实验步骤

第一步：引入 Shardingsphere 依赖

在项目依赖中添加以下坐标：


       
    
     org.apache.shardingsphere
        
    
     sharding-jdbc-spring-boot-starter
        
    
     4.0.0-RC3
    
   
   
       
    
     org.apache.shardingsphere
        
    
     sharding-jdbc-spring-namespace
        
    
     4.0.0-RC3

第二步：配置 application.properties 文件

# 其他配置（如服务器绑定、上下文路径等）...# 数据源配置spring.shardingsphere.datasource.names=ds-0,ds-1spring.shardingsphere.datasource.ds-0.type=com.zaxxer.hikari.HikariDataSourcespring.shardingsphere.datasource.ds-0.driver-class-name=com.mysql.jdbc.Driverspring.shardingsphere.datasource.ds-0.jdbc-url=jdbc:mysql://youraddress:3306/demo_ds_0spring.shardingsphere.datasource.ds-0.username=springspring.shardingsphere.datasource.ds-0.password=springspring.shardingsphere.datasource.ds-1.type=com.zaxxer.hikari.HikariDataSourcespring.shardingsphere.datasource.ds-1.driver-class-name=com.mysql.jdbc.Driverspring.shardingsphere.datasource.ds-1.jdbc-url=jdbc:mysql://youraddress:3306/demo_ds_1spring.shardingsphere.datasource.ds-1.username=springspring.shardingsphere.datasource.ds-1.password=spring# 分片配置spring.shardingsphere.sharding.default-database-strategy.inline.sharding-column=agespring.shardingsphere.sharding.default-database-strategy.inline.algorithm-expression=ds-$-&{age % 2}# 表配置spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds-$-{0..1}.usersspring.shardingsphere.sharding.tables.user.key-generator.column=idspring.shardingsphere.sharding.tables.user.key-generator.type=SNOWFLAKEspring.shardingsphere.sharding.tables.user.key-generator.props.worker.id=123