its-op-server/src/main/java/com/its/op/exception/ExceptionControllerAdvisor.java

package com.its.op.exception;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.support.DefaultMessageSourceResolvable;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@ControllerAdvice
public class ExceptionControllerAdvisor {//} extends ResponseEntityExceptionHandler {

    /*@Override
    protected ResponseEntity<Object> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {

        List<String> errorList = ex
                .getBindingResult()
                .getFieldErrors()
                .stream()
                .map(DefaultMessageSourceResolvable::getDefaultMessage)
                .collect(Collectors.toList());

        return new ResponseEntity<>(
                NotValidExceptionResponse.builder()
                        .timestamp(LocalDateTime.now())
                        .status(HttpStatus.BAD_REQUEST.value())
                        .title("Arguments Not Valid")
                        .developerMessage(ex.getClass().getName())
                        .err(errorList)
                        .build(), HttpStatus.BAD_REQUEST
        );
    }*/

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseEntity<ErrorResponse> methodValidException(MethodArgumentNotValidException ex, HttpServletRequest request) {
        log.warn("MethodArgumentNotValidException 발생!!! url:{}, trace:{}",request.getRequestURI(), ex.getStackTrace());
        List<String> errorList = ex
                .getBindingResult()
                .getFieldErrors()
                .stream()
                .map(DefaultMessageSourceResolvable::getDefaultMessage)
                .collect(Collectors.toList());
        //ErrorResponse errorResponse = makeErrorResponse(e.getBindingResult());
        //return new ResponseEntity<ErrorResponse>(errorResponse, HttpStatus.BAD_REQUEST);
        return new ResponseEntity<>(
                ErrorResponse.builder()
                        .timestamp(LocalDateTime.now())
                        .status(HttpStatus.BAD_REQUEST.value())
                        .title("Arguments Not Valid")
                        .message(ex.getClass().getName())
                        .errors(errorList)
                        .build(), HttpStatus.BAD_REQUEST);
    }
/*

    private ErrorResponse makeErrorResponse(BindingResult bindingResult) {
        String code = "";
        String description = "";
        String detail = "";

        //에러가 있다면
        if (bindingResult.hasErrors()) {
            //DTO에 설정한 meaasge값을 가져온다
            detail = bindingResult.getFieldError().getDefaultMessage();

            //DTO에 유효성체크를 걸어놓은 어노테이션명을 가져온다.
            String bindResultCode = bindingResult.getFieldError().getCode();

            switch (bindResultCode){
                case "NotNull":
                    //code = ErrorCode.NOT_NULL.getCode();
                    //description = ErrorCode.NOT_NULL.getDescription();
                    break;
                case "Min":
                    //code = ErrorCode.MIN_VALUE.getCode();
                    //description = ErrorCode.MIN_VALUE.getDescription();
                    break;
            }
        }
        return new ErrorResponse(0, code, null);
    }
*/

}