Controller vs RestController

[@Controller 예제 코드]
@Controller
@RequiredArgsConstructor
public class UserController {

    private final UserService userService;

    @GetMapping(value = "/users")
    public @ResponseBody ResponseEntity<User> findUser(@RequestParam("userName") String userName){
        return ResponseEntity.ok(userService.findUser(user));
    }
}

[@RestController]
@RestController는 @Controller에 @ResponseBody가 추가!
(Json 형태로 객체 데이터를 반환하는 것)

[@RestController 예제 코드]
@RestController
@RequiredArgsConstructor
public class UserController {

    private final UserService userService;

    @GetMapping(value = "/users")
    public ResponseEntity<User> findUserWithResponseEntity(@RequestParam("userName") String userName){
        return ResponseEntity.ok(userService.findUser(user));
    }
}