Java FieldError类代码示例

import org.springframework.validation.FieldError; //导入依赖的package包/类
@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseStatus(HttpStatus.BAD_REQUEST)
@ResponseBody
public ErrorVM processValidationError(MethodArgumentNotValidException ex) {
    BindingResult result = ex.getBindingResult();
    List<FieldError> fieldErrors = result.getFieldErrors();
    ErrorVM dto = new ErrorVM(ErrorConstants.ERR_VALIDATION);
    for (FieldError fieldError : fieldErrors) {
        dto.add(fieldError.getObjectName(), fieldError.getField(), fieldError.getCode());
    }
    return dto;
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
/**
 * Rest handler for validation errors.
 * @param ex handled exception
 * @return rest result
 */
@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseStatus(HttpStatus.BAD_REQUEST)
public ResponseEntity<?> processHandler(MethodArgumentNotValidException ex) {

  BindingResult bindingResult = ex.getBindingResult();
  List<FieldError> fieldErrors = bindingResult.getFieldErrors();
  List<FieldErrorDto> fieldErrorDtos = fieldErrors.stream()
      .map(FieldErrorDto::new)
      .collect(Collectors.toList());

  ValidationResultDto validationResultDto = new ValidationResultDto();
  validationResultDto.setFieldErrors(fieldErrorDtos);

  return ResponseEntity.badRequest().body(validationResultDto);
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
/**
 * 只将第一个错误抛出异常
 * @param errResult
 * @return
 */
public static ValidationException build(BindingResult errResult) {

    FieldError fieldError = errResult.getFieldError();

    String code = fieldError.getCode();
    String field = fieldError.getField();
    String message = fieldError.getDefaultMessage();
    message = "`" + field + "` " + message;

    ErrorCode errorCode = ErrorCodeConfig.PARAM_INVAILD;
    switch (code) {
        case "NotNull":
            errorCode = ErrorCodeConfig.PARAM_NOTFOUND;
            break;
        case "Length":
            errorCode = ErrorCodeConfig.PARAM_INVAILD_LENGTH;
            break;
        default:
            break;
    }

    return new ValidationException(errorCode, message);
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseStatus(value = HttpStatus.BAD_REQUEST)
@ResponseBody
public XAPIErrorInfo handleMethodArgumentNotValidException(final HttpServletRequest request, MethodArgumentNotValidException e) {
    final List<String> errorMessages = new ArrayList<String>();
    for (ObjectError oe : e.getBindingResult().getAllErrors()) {
        if (oe instanceof FieldError) {
            final FieldError fe = (FieldError)oe;
            final String msg = String.format(
                    "Field error in object '%s' on field '%s': rejected value [%s].", fe.getObjectName(), fe.getField(), fe.getRejectedValue());
            errorMessages.add(msg);
        } else {
            errorMessages.add(oe.toString());
        }
    }
    final XAPIErrorInfo result = new XAPIErrorInfo(HttpStatus.BAD_REQUEST, request, errorMessages);
    this.logException(e);
    this.logError(result);
    return result;
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
@SuppressWarnings("unchecked")
private <T extends ObjectError> T escapeObjectError(T source) {
	if (source == null) {
		return null;
	}
	if (source instanceof FieldError) {
		FieldError fieldError = (FieldError) source;
		Object value = fieldError.getRejectedValue();
		if (value instanceof String) {
			value = HtmlUtils.htmlEscape((String) value);
		}
		return (T) new FieldError(
				fieldError.getObjectName(), fieldError.getField(), value,
				fieldError.isBindingFailure(), fieldError.getCodes(),
				fieldError.getArguments(), HtmlUtils.htmlEscape(fieldError.getDefaultMessage()));
	}
	else {
		return (T) new ObjectError(
				source.getObjectName(), source.getCodes(), source.getArguments(),
				HtmlUtils.htmlEscape(source.getDefaultMessage()));
	}
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
/**
 * Rest handler for validation errors.
 * @param ex handled exception
 * @return rest result
 */
@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseStatus(HttpStatus.BAD_REQUEST)
public ResponseEntity<?> processHandler(MethodArgumentNotValidException ex) {

  BindingResult bindingResult = ex.getBindingResult();
  List<FieldError> fieldErrors = bindingResult.getFieldErrors();
  List<FieldErrorDto> fieldErrorDtos = fieldErrors.stream()
      .map(FieldErrorDto::new)
      .collect(Collectors.toList());

  ValidationResultDto validationResultDto = new ValidationResultDto();
  validationResultDto.setFieldErrors(fieldErrorDtos);

  LOGGER.error("VALIDATION ERROR: " + ex.getMessage());

  return ResponseEntity.badRequest().body(validationResultDto);
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
private BaseMatcher<BindException> getMatcher(String message, String field) {
	return new BaseMatcher<BindException>() {

		@Override
		public void describeTo(Description description) {

		}

		@Override
		public boolean matches(Object item) {
			BindException ex = (BindException) ((Exception) item).getCause();
			ObjectError error = ex.getAllErrors().get(0);
			boolean messageMatches = message.equals(error.getDefaultMessage());
			if (field == null) {
				return messageMatches;
			}
			String fieldErrors = ((FieldError) error).getField();
			return messageMatches && fieldErrors.equals(field);
		}

	};
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
/**
 * adds new shopping list for the current user
 * 
 * @param newList
 *            ShoppingListDTO with basic information about new list (must
 *            include list name)
 */
@RequestMapping(value = "/list", method = RequestMethod.POST)
public String addList(Principal principal, @Valid @ModelAttribute("newList") ShoppingListDTO newList, BindingResult binding, RedirectAttributes attr, HttpSession session) {
	LOGGER.debug("addList() method of MvcController called for user: {}", principal.getName());
	if(!binding.hasErrors()) 
		repositoryService.addShoppingListToUserByName(principal.getName(), newList.getListName());
	else {
		attr.addFlashAttribute("org.springframework.validation.BindingResult.newList", binding);
		attr.addFlashAttribute("newList", newList);
		for(FieldError ferr:binding.getFieldErrors()) {
			LOGGER.info("addList(): field error: " + ferr.getDefaultMessage());
		}
	}
	
	return "redirect:/list";
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
/**
  * This method will be called on form submission, handling POST request for
  * saving user in database. It also validates the user input
  */
 @RequestMapping(value = {"/newuser"}, method = RequestMethod.POST)
 public String saveUser(@Valid AdmUser user, BindingResult result,
         ModelMap model) {

     if (result.hasErrors()) {
         return "registration";
     }

     /*
* Preferred way to achieve uniqueness of field [sso] should be implementing custom @Unique annotation 
* and applying it on field [sso] of Model class [User].
* 
* Below mentioned peace of code [if block] is to demonstrate that you can fill custom errors outside the validation
* framework as well while still using internationalized messages.
* 
      */
     if (!userService.isUserSSOUnique(user.getUserId(), user.getEmail())) {
         FieldError ssoError = new FieldError("user", "userId", messageSource.getMessage("non.unique.ssoId", new String[]{user.getEmail()}, Locale.getDefault()));
         result.addError(ssoError);

         return "registration";
     }

     userService.saveUser(user);

     model.addAttribute("success", "User " + user.getFirstName() + " " + user.getLastName() + " registered successfully");
     model.addAttribute("loggedinuser", getPrincipal());
     //return "success";
     return "registrationsuccess";
 }
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
private void addFieldError(String objectName, String fieldName, String fieldValue,  String errorCode, BindingResult result) {
    LOGGER.debug(
            "Adding field error object's: {} field: {} with error code: {}",
            objectName,
            fieldName,
            errorCode
    );
    FieldError error = new FieldError(
            objectName,
            fieldName,
            fieldValue,
            false,
            new String[]{errorCode},
            new Object[]{},
            errorCode
    );

    result.addError(error);
    LOGGER.debug("Added field error: {} to binding result: {}", error, result);
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
/**
 * 员工保存
 * @param employee
 * @return
 * 1.支持JSR303校验
 * 2.导入Hibernate-Validator
 */
 
@RequestMapping(value="emp",method=RequestMethod.POST) //定义为POST请求
@ResponseBody
public Msg saveEmp(@Valid Employee employee,BindingResult result){
	if(result.hasErrors()){
		Map<String,Object> map= new HashMap<>();
		//校验失败，应该返回失败，在模态框中显示校验失败的信息
		List<FieldError> errors = result.getFieldErrors(); //提取出错误信息
		for(FieldError fieldError : errors){
			System.out.println("错误的字段名:"+ fieldError.getField());  
			System.out.println("错误信息:"+fieldError.getDefaultMessage());
			map.put(fieldError.getField(), fieldError.getDefaultMessage());
		}
		return Msg.fail().add("errorFields", map);
		
	}else{
		employeeService.saveEmp(employee); 
		return Msg.success();
	}
 
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
@RequestMapping(value = { "/newuser" }, method = RequestMethod.POST)
public String saveUser(@Valid User user, BindingResult result,
                       ModelMap model) {

    if (result.hasErrors()) {
        return "registration";
    }

    if(!userService.isUserSSOUnique(user.getId(), user.getSsoId())){
        FieldError ssoError =new FieldError("user","ssoId",messageSource.getMessage("non.unique.ssoId", new String[]{user.getSsoId()}, Locale.getDefault()));
        result.addError(ssoError);
        return "registration";
    }

    userService.saveUser(user);

    model.addAttribute("success", "Użytkownik " + user.getFirstName() + " "+ user.getLastName() + " został zarejestrowany.");
    model.addAttribute("loggedinuser", getPrincipal());
    return "registrationsuccess";
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
@RequestMapping(value = { "/register" }, method = RequestMethod.POST)
public String saveUserAccount(@Valid User user, BindingResult result, ModelMap model) {

    if (result.hasErrors() || result==null) {
        return "register";
    }
    if(!userService.isUserSSOUnique(user.getId(), user.getSsoId())){
        FieldError ssoError =new FieldError("user","ssoId",messageSource.getMessage("non.unique.ssoId", new String[]{user.getSsoId()}, Locale.getDefault()));
        result.addError(ssoError);
        return "register";
    }

    userService.saveCustomerAccount(user);

    model.addAttribute("success", "Użytkownik " + user.getFirstName() + " "+ user.getLastName() + " został zarejestrowany.");
    model.addAttribute("loggedinuser", getPrincipal());
    return "registrationsuccess";
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
@RequestMapping(value = "/addEntry", method = RequestMethod.POST)
public String addEntry(@Valid @ModelAttribute EntryModel newEntryModel, BindingResult bindingResult,
		Model model) {
	if (bindingResult.hasErrors()) {
		String errorMessage = "";
		for (FieldError fieldError : bindingResult.getFieldErrors()) {
			errorMessage += fieldError.getField() + " is invalid<br>";
		}
		model.addAttribute("errorMessage", errorMessage);
		return "forward:/entry";
	}
	
	//if (newEntryModel != null) {
		//model.addAttribute("errorMessage", "Entry already exists!<br>");
	//} else {
	newEntryModel.setDate(new Timestamp(System.currentTimeMillis()));
	UserModel user = null;
	Authentication auth = SecurityContextHolder.getContext().getAuthentication();
	List<UserModel> userList = userRepository.findByUsername(auth.getName());
	user = userList.get(0);
	newEntryModel.setUser(user);
	newEntryModel.setSubforum(null);
	entryRepository.save(newEntryModel);
	
	return "forum/entry";
}
 

import org.springframework.validation.FieldError; //导入依赖的package包/类
@RequestMapping(value = "/addTopic", method = RequestMethod.POST)
public String addTopic(@Valid @ModelAttribute ForumModel newForumModel, BindingResult bindingResult,
		Model model) {
	if (bindingResult.hasErrors()) {
		String errorMessage = "";
		for (FieldError fieldError : bindingResult.getFieldErrors()) {
			errorMessage += fieldError.getField() + " is invalid<br>";
		}
		model.addAttribute("errorMessage", errorMessage);
		return "/forum";
	}

	
	forumRepository.save(newForumModel);
	return "/forum";
}