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;
}
}
rw_demo.zip （8个子文件） 
rw_demo 
pom.xml 2KB src test java main resources application.yml 1KB java com itheima Application.java 397B mapper UserMapper.java 236B controller UserController.java 1KB service UserService.java 186B impl UserServiceImpl.java 374B entity User.java 304B
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