统一异常处理、断言和枚举结合使用案例

package com.example.unifyprocess.controller; import com.example.unifyprocess.common.ResponseData; import com.example.unifyprocess.model.User; import com.example.unifyprocess.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("user") public class UserController { @Autowired private UserService userService; @GetMapping("user1") public ResponseData<User> user1(){ try { User user = userService.getUser(); return new ResponseData<>(user,"200","success"); }catch (Exception e){ System.out.println("异常处理"); return new ResponseData<>(null,"500",e.getMessage()); } } @GetMapping("user2") public ResponseData<User> user2(){ try { User user = userService.getUser(); int i = 1/0; return new ResponseData<>(user,"200","success"); }catch (Exception e){ System.out.println("异常处理"); return new ResponseData<>(null,"500",e.getMessage()); } } @GetMapping("user3") public ResponseData<User> user3(){ return new ResponseData<>(userService.getUser(),"200","success"); } @GetMapping("user4") public ResponseData<User> user4(){ return new ResponseData<>(userService.getUser2(),"200","success"); } @GetMapping("user5") public ResponseData<User> user5(){ return new ResponseData<>(userService.getUser3(),"200","success"); } }