org.springframework.web.bind.annotation.ExceptionHandler#org.springframework.web.bind.MethodArgumentNotValidException源码实例Demo

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

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

    List<String> globalErrors = ex.getBindingResult().getGlobalErrors()
            .stream()
            .map(error -> error.getObjectName() + ": " + error.getDefaultMessage())
            .collect(toList());

    List<ApiResourcePropertyError> fieldErrors = ex.getBindingResult().getFieldErrors()
            .stream()
            .map(this::toResourcePropertyError)
            .collect(toList());

    ApiError apiError = ApiError.builder()
            .message("Validation error")
            .status(ex.getParameter().hasParameterAnnotation(RequestBody.class) ? HttpStatus.UNPROCESSABLE_ENTITY : HttpStatus.BAD_REQUEST)
            .details(Stream.concat(globalErrors.stream(), fieldErrors.stream()).collect(toList()))
            .build();

    return handleExceptionInternal(ex, apiError, headers, apiError.getStatus(), request);
}
 

@Test
@Parameters(method = "provideValidationParams")
public void validationException_ShouldBeHandledProperly(Object pojo, Locale locale, CodedMessage... codedMessages) {
    contextRunner.run(ctx -> {
        WebErrorHandlers errorHandlers = ctx.getBean(WebErrorHandlers.class);
        Validator validator = ctx.getBean(Validator.class);

        BindingResult result = new BeanPropertyBindingResult(pojo, "pojo");
        validator.validate(pojo, result);

        // Assertions for BindException
        HttpError bindError = errorHandlers.handle(new BindException(result), null, locale);
        assertThat(bindError.getHttpStatus()).isEqualTo(HttpStatus.BAD_REQUEST);
        assertThat(bindError.getErrors()).containsOnly(codedMessages);

        // Assertions for MethodArgumentNotValidException
        HttpError argumentError = errorHandlers.handle(new MethodArgumentNotValidException(mock(MethodParameter.class), result), null, locale);
        assertThat(argumentError.getHttpStatus()).isEqualTo(HttpStatus.BAD_REQUEST);
        assertThat(argumentError.getErrors()).containsOnly(codedMessages);

        verifyPostProcessorsHasBeenCalled(ctx);
    });
}
 

private Object exeute(HttpServletRequest reqest, HttpServletResponse response, Exception e) {
    log.error(StringUtil.getMessage(e), e);
    //if (isAjax(reqest)) {
    String exMsg = StringUtil.getMessage(e);
    if (e instanceof InvocationTargetException && exMsg == null) {
        exMsg = ((InvocationTargetException) e).getTargetException().getMessage();
    } else if (e instanceof MethodArgumentNotValidException) {
        List<String> list = StringUtil.toList(exMsg, "default message");
        if (CollectionUtils.isNotEmpty(list) && list.size() > 1) {
            List<FieldError> errors = ((MethodArgumentNotValidException) e).getBindingResult().getFieldErrors();
            if (CollectionUtils.isNotEmpty(list)) {
                exMsg = errors.get(0).getDefaultMessage();
            }
        }
    }
    if (exMsg == null) {
        exMsg = e.toString();
    }
    return ServiceResult.fail(exMsg);
   /* } else {
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("/err/500/index.html");
        return modelAndView;
    }*/
}
 

@Test
@Parameters(method = "provideParamsForHandle")
public void handle_ShouldHandleTheValidationErrorsProperly(Object toValidate,
                                                           Set<String> errorCodes,
                                                           Map<String, List<Argument>> args) {
    BindingResult result = new BeanPropertyBindingResult(toValidate, "toValidate");
    validator.validate(toValidate, result);

    // Create and assert for BindException

    BindException bindException = new BindException(result);
    HandledException handledForBind = handler.handle(bindException);

    assertThat(handledForBind.getErrorCodes()).containsAll(errorCodes);
    assertThat(handledForBind.getStatusCode()).isEqualTo(HttpStatus.BAD_REQUEST);
    assertThat(handledForBind.getArguments()).isEqualTo(args);

    // Create and assert for MethodArgumentNotValidException

    MethodArgumentNotValidException exception = new MethodArgumentNotValidException(null, result);
    HandledException handled = handler.handle(exception);

    assertThat(handled.getErrorCodes()).containsAll(errorCodes);
    assertThat(handled.getStatusCode()).isEqualTo(HttpStatus.BAD_REQUEST);
    assertThat(handled.getArguments()).isEqualTo(args);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Test
public void processValidationErrorTest() throws Exception {
    UserJWTController control = new UserJWTController(null, null);
    MockMvc jwtMock = MockMvcBuilders.standaloneSetup(control)
        .setControllerAdvice(new ExceptionTranslator())
        .build();
    MvcResult res = jwtMock.perform(post("/api/authenticate")
        .contentType(MediaType.APPLICATION_JSON_UTF8)
        .accept(MediaType.APPLICATION_JSON, MediaType.TEXT_PLAIN, MediaType.ALL)
        .content("{\"username\":\"fakeUsernameTooLongfakeUsernameTooLongfakeUsernameTooLongfakeUsernameTooLong" +
            "\",\"password\":\"fakePassword\",\"rememberMe\":false}"))
        .andExpect(status().isBadRequest())
        .andReturn();

    assertThat(res.getResolvedException(), instanceOf(MethodArgumentNotValidException.class));
}
 

/**
 * JSR303参数校验错误
 * @param ex BindException
 */
@ExceptionHandler({BindException.class,MethodArgumentNotValidException.class})
public JsonData<Void> bindException(MethodArgumentNotValidException ex) {
	LogBack.error(ex.getMessage(), ex);
	BindingResult bindingResult = ex.getBindingResult();
	if (bindingResult.hasErrors()) {
		List<FieldError> errors = bindingResult.getFieldErrors();
		List<ValidFieldError> validList = new ArrayList<>();
		if (!(CollectionUtils.isEmpty(errors))) {
			for (FieldError fe : errors) {
				validList.add(new ValidFieldError(fe));
			}
		}
		LogBack.error("参数校验错误：" + validList.toString(), ex);
		return JsonData.failed(StatusEnum.PARAM_INVALID, validList.toString());
	}
	return JsonData.failed(StatusEnum.PARAM_INVALID);
}
 

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

    Map<String, Object> body = new LinkedHashMap<>();
    body.put("timestamp", new Date());
    body.put("status", status.value());

    //Get all errors
    List<String> errors = ex.getBindingResult()
            .getFieldErrors()
            .stream()
            .map(x -> x.getDefaultMessage())
            .collect(Collectors.toList());

    body.put("errors", errors);

    return new ResponseEntity<>(body, headers, status);

    //Map<String, String> fieldErrors = ex.getBindingResult().getFieldErrors().stream().collect(
    //        Collectors.toMap(FieldError::getField, FieldError::getDefaultMessage));

}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with(MESSAGE_KEY, ErrorConstants.ERR_VALIDATION)
        .with(FIELD_ERRORS_KEY, fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

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

    Map<String, Object> body = new LinkedHashMap<>();
    body.put("timestamp", new Date());
    body.put("status", status.value());

    //Get all errors
    List<String> errors = ex.getBindingResult()
            .getFieldErrors()
            .stream()
            .map(x -> x.getDefaultMessage())
            .collect(Collectors.toList());

    body.put("errors", errors);

    return new ResponseEntity<>(body, headers, status);

    //Map<String, String> fieldErrors = ex.getBindingResult().getFieldErrors().stream().collect(
    //        Collectors.toMap(FieldError::getField, FieldError::getDefaultMessage));

}
 

@ExceptionHandler(value = Exception.class)
public Result exceptionHandler(Exception e) {
    String message = null;

    if (e instanceof IllegalArgumentException) {
        message = "传入了错误的参数";
    }

    if (e instanceof MethodArgumentNotValidException) {
        message = ((MethodArgumentNotValidException) e).getBindingResult().getFieldError().getDefaultMessage();
    }

    if (e instanceof UnauthorizedException) {
        message = "权限认证失败";
    }

    return ResultFactory.buildFailResult(message);
}
 

/**
 * IllegalArgumentException异常处理返回json
 * 返回状态码:500
 */
@ResponseStatus(HttpStatus.OK)
@ExceptionHandler({MethodArgumentNotValidException.class})
public JSONResult argumentNotValidException(MethodArgumentNotValidException e) {
    List<FieldError> bindingResult = e.getBindingResult().getFieldErrors();
    StringBuilder sb = new StringBuilder();
    //请求参数错误
    sb.append(ErrorEnum.ERROR_PARAM.getErrorMessage()).append(" --> ");
    for (FieldError fieldError : bindingResult) {
        sb.append(fieldError.getField());
        sb.append(" : ");
        sb.append(fieldError.getDefaultMessage());
        sb.append(" ; ");
    }

    return defHandler(null, sb.toString(), e);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with(MESSAGE_KEY, ErrorConstants.ERR_VALIDATION)
        .with(FIELD_ERRORS_KEY, fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with(MESSAGE_KEY, ErrorConstants.ERR_VALIDATION)
        .with(FIELD_ERRORS_KEY, fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with(MESSAGE_KEY, ErrorConstants.ERR_VALIDATION)
        .with(FIELD_ERRORS_KEY, fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with(MESSAGE_KEY, ErrorConstants.ERR_VALIDATION)
        .with(FIELD_ERRORS_KEY, fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseBody
public DataResponse<List<FieldErrorDTO>> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
    DataResponse<List<FieldErrorDTO>> response
            = new DataResponse<>(translator.translate(ResultCode.ILLEGAL_ARGUMENT));

    BindingResult bindingResult = e.getBindingResult();
    if (bindingResult.hasErrors()) {
        List<FieldErrorDTO> fieldErrorDTOList = new LinkedList<>();
        bindingResult.getFieldErrors().forEach(fieldError -> {
            FieldErrorDTO fieldErrorDTO = new FieldErrorDTO();
            fieldErrorDTO.setField(fieldError.getField());
            fieldErrorDTO.setErrorInfo(fieldError.getDefaultMessage());
            fieldErrorDTOList.add(fieldErrorDTO);
        });
        response.setData(fieldErrorDTOList);
    }
    logger.warn("{}", response, e);
    return response;
}
 

@Override
public ResponseEntity<Problem> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, @Nonnull NativeWebRequest request) {
    BindingResult result = ex.getBindingResult();
    List<FieldErrorVM> fieldErrors = result.getFieldErrors().stream()
        .map(f -> new FieldErrorVM(f.getObjectName(), f.getField(), f.getCode()))
        .collect(Collectors.toList());

    Problem problem = Problem.builder()
        .withType(ErrorConstants.CONSTRAINT_VIOLATION_TYPE)
        .withTitle("Method argument not valid")
        .withStatus(defaultConstraintViolationStatus())
        .with("message", ErrorConstants.ERR_VALIDATION)
        .with("fieldErrors", fieldErrors)
        .build();
    return create(ex, problem, request);
}
 

/**
 * Throws MethodArgumentNotValidException if validation fails.
 * @throws HttpMessageNotReadableException if {@link RequestBody#required()}
 * is {@code true} and there is no body content or if there is no suitable
 * converter to read the content with.
 */
@Override
public Object resolveArgument(MethodParameter parameter, @Nullable ModelAndViewContainer mavContainer,
		NativeWebRequest webRequest, @Nullable WebDataBinderFactory binderFactory) throws Exception {

	parameter = parameter.nestedIfOptional();
	Object arg = readWithMessageConverters(webRequest, parameter, parameter.getNestedGenericParameterType());
	String name = Conventions.getVariableNameForParameter(parameter);

	if (binderFactory != null) {
		WebDataBinder binder = binderFactory.createBinder(webRequest, arg, name);
		if (arg != null) {
			validateIfApplicable(binder, parameter);
			if (binder.getBindingResult().hasErrors() && isBindExceptionRequired(binder, parameter)) {
				throw new MethodArgumentNotValidException(parameter, binder.getBindingResult());
			}
		}
		if (mavContainer != null) {
			mavContainer.addAttribute(BindingResult.MODEL_KEY_PREFIX + name, binder.getBindingResult());
		}
	}

	return adaptArgumentIfNecessary(arg, parameter);
}
 

/**
 * 处理所有接口数据验证异常
 */
@ExceptionHandler(MethodArgumentNotValidException.class)
public ResponseEntity<ApiError> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
    // 打印堆栈信息
    log.error(ThrowableUtil.getStackTrace(e));
    String[] str = Objects.requireNonNull(e.getBindingResult().getAllErrors().get(0).getCodes())[1].split("\\.");
    String message = e.getBindingResult().getAllErrors().get(0).getDefaultMessage();
    String msg = "不能为空";
    if (msg.equals(message)) {
        message = str[1] + ":" + message;
    }
    return buildResponseEntity(ApiError.error(message));
}