SpringBoot CRUD + 事务 DEMO

package com.example.sbd.controller; import com.example.sbd.dao.UserRespository; import com.example.sbd.entity.User; import com.example.sbd.service.UserService; import com.example.sbd.vo.UserVO; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import java.util.List; /** * 在用POSTMAN时 * PUT 方式 提交参数要用"x-www-form-urlencoded" * POST方式 提交参数要用form-data * * JSON方式 参数用@RequestBody */ @RestController public class UserController { @Autowired private UserService userService; /** * 查询所有用户列表 * @return */ @GetMapping(value = "/users") public List<User> UserList(){ return userService.findAll(); } /** * 添加一个用户 * @param name * @param age * @return */ @PostMapping(value = "users") public User UserAdd(@RequestParam("name") String name, @RequestParam("age") Integer age){ UserVO user = new UserVO(); user.setName(name); user.setAge(age); return userService.addUser(user); } /** * 添加一个用户(使用JSON方式传递参数) * @param uservo * @return */ @PostMapping(value = "usersJson") public User UserAdd2(@RequestBody UserVO uservo){ return userService.addUser(uservo); } /** * 查询一个用户 * @param id * @return */ @GetMapping(value = "/users/{id}") public User UserFindOne(@PathVariable("id") Integer id){ return userService.findUser(id); } /** * 更新用户信息 * */ @PutMapping(value = "/users/{id}") public User UserUpdate(@PathVariable("id") Integer id,@RequestParam("name") String name, @RequestParam("age") Integer age){ UserVO userVO = new UserVO(); userVO.setId(id); userVO.setAge(age); userVO.setName(name); return userService.updateUser(userVO); } /** * 删除一个用户 */ @DeleteMapping(value = "/users/{id}") public void UserDelete(@PathVariable("id") Integer id){ userService.deleteUser(id); } /** * 通过年龄查询用户 */ @GetMapping(value = "/users/age/{age}") public List<User> UserListByAge(@PathVariable("age") Integer age){ return userService.findByAge(age); } @PostMapping(value = "/users/two") public void UserTwo(){ userService.insertTwo(); } }