MySQL主从复制项目实例

package com.itheima.controller; import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper; import com.itheima.entity.User; import com.itheima.service.UserService; import lombok.extern.slf4j.Slf4j; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import javax.sql.DataSource; import java.util.List; @RestController @RequestMapping("/user") @Slf4j public class UserController { @Autowired private DataSource dataSource; @Autowired private UserService userService; @PostMapping public User save(User user){ userService.save(user); return user; } @DeleteMapping("/{id}") public void delete(@PathVariable Long id){ userService.removeById(id); } @PutMapping public User update(User user){ userService.updateById(user); return user; } @GetMapping("/{id}") public User getById(@PathVariable Long id){ User user = userService.getById(id); return user; } @GetMapping("/list") public List<User> list(User user){ LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>(); queryWrapper.eq(user.getId() != null,User::getId,user.getId()); queryWrapper.eq(user.getName() != null,User::getName,user.getName()); List<User> list = userService.list(queryWrapper); return list; } }