<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.28</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.3</version>
        </dependency>
        <!--分庫(kù)分表-->
        <!-- Sharding-JDBC -->
        <dependency>
            <groupId>org.apache.shardingsphere</groupId>
            <artifactId>shardingsphere-jdbc-core-spring-boot-starter</artifactId>
            <version>5.2.0</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

server:
  port: 10086
spring:
  shardingsphere:
    # 數(shù)據(jù)源配置
    datasource:
      # 數(shù)據(jù)源名稱，多數(shù)據(jù)源以逗號(hào)分隔
      names: db0,db1
      db0:
        type: com.zaxxer.hikari.HikariDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        jdbc-url: jdbc:mysql://127.0.0.1:3306/ds0?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
        username: root
        password: root
      db1:
        type: com.zaxxer.hikari.HikariDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        jdbc-url: jdbc:mysql://127.0.0.1:3306/ds1?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
        username: root
        password: root
    # 分片規(guī)則配置
    rules:
      sharding:
        # 分片算法配置
        sharding-algorithms:
          database-inline:
            # 分片算法類型
            type: INLINE
            props:
              # 分片算法的行表達(dá)式（算法自行定義，此處為方便演示效果）
              algorithm-expression: db$->{age % 2}
          table-inline:
            # 分片算法類型
            type: INLINE
            props:
              # 分片算法的行表達(dá)式
              algorithm-expression: user_$->{age % 3}
        tables:
          # 邏輯表名稱
          user:
            # 行表達(dá)式標(biāo)識(shí)符可以使用 ${...} 或 $->{...}，但前者與 Spring 本身的屬性文件占位符沖突，因此在 Spring 環(huán)境中使用行表達(dá)式標(biāo)識(shí)符建議使用 $->{...}
            actual-data-nodes: db${0..1}.user_${0..2}
            # 分庫(kù)策略
            database-strategy:
              standard:
                # 分片列名稱
                sharding-column: age
                # 分片算法名稱
                sharding-algorithm-name: database-inline
            # 分表策略
            table-strategy:
              standard:
                # 分片列名稱
                sharding-column: age
                # 分片算法名稱
                sharding-algorithm-name: table-inline
    # 屬性配置
    props:
      # 展示修改以后的sql語句
      sql-show: true

-- ds0.user_0 definition
CREATE TABLE `user_0` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵',
  `name` varchar(32) NOT NULL COMMENT '姓名',
  `age` int NOT NULL COMMENT '年齡',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB COMMENT='用戶表';

-- ds0.user_1 definition
CREATE TABLE `user_1` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵',
  `name` varchar(32) NOT NULL COMMENT '姓名',
  `age` int NOT NULL COMMENT '年齡',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB COMMENT='用戶表';

-- ds0.user_2 definition
CREATE TABLE `user_2` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵',
  `name` varchar(32) NOT NULL COMMENT '姓名',
  `age` int NOT NULL COMMENT '年齡',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB COMMENT='用戶表';

-- ds1.user_0 definition
CREATE TABLE `user_0` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵',
  `name` varchar(32) NOT NULL COMMENT '姓名',
  `age` int NOT NULL COMMENT '年齡',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB COMMENT='用戶表';

-- ds1.user_1 definition
CREATE TABLE `user_1` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵',
  `name` varchar(32) NOT NULL COMMENT '姓名',
  `age` int NOT NULL COMMENT '年齡',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB COMMENT='用戶表';

-- ds1.user_2 definition
CREATE TABLE `user_2` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵',
  `name` varchar(32) NOT NULL COMMENT '姓名',
  `age` int NOT NULL COMMENT '年齡',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB COMMENT='用戶表';

package com.kang.sharding.entity;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
@Data
@TableName("user")  
public class User {
    @TableId(value = "id",type = IdType.AUTO)
    private Long id;
    private String name;
    private Integer age;
    // getter, setter, toString...  
}

package com.kang.sharding.controller;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.kang.sharding.entity.User;
import com.kang.sharding.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RestController  
@RequestMapping("/user")  
public class UserController {  
    @Autowired  
    private UserService userService;
    @PostMapping ("add")
    public boolean createUser(@RequestBody User user) {
        return userService.save(user);  
    }
    @PostMapping ("update")
    public boolean updateByAge(@RequestBody User user){
        LambdaUpdateWrapper<User> updateWrapper = new LambdaUpdateWrapper<>();
        // 分片數(shù)據(jù)不允許更新,否則會(huì)報(bào)錯(cuò)
        updateWrapper.eq(User::getAge,user.getAge()).set(User::getName,user.getName());
        return userService.update(updateWrapper);
    }
    @GetMapping ("delete")
    public boolean deleteUserByAge(@RequestParam("age") Integer age) {
        LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(User::getAge,age);
        return userService.remove(queryWrapper);
    }
    @GetMapping("/{age}")
    public List<User> getUserByAge(@PathVariable Integer age) {
        LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(User::getAge,age);
        return userService.list(queryWrapper);
    }  
    // 其他方法...  
}

package com.kang.sharding.service;
import com.kang.sharding.entity.User;
import com.kang.sharding.mapper.UserMapper;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;  
@Service  
public class UserService extends ServiceImpl<UserMapper, User> {
}

package com.kang.sharding.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.kang.sharding.entity.User;
import org.apache.ibatis.annotations.Mapper;
@Mapper
public interface UserMapper extends BaseMapper<User> {
}

package com.kang.sharding;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ShardingJdbcProjectApplication {
    public static void main(String[] args) {
        SpringApplication.run(ShardingJdbcProjectApplication.class, args);
    }
}