spring校验注解@valid和@validated重点获取校验消息

spring校验注解@valid和@validated重点获取校验消息

1. @valid作用范围类，方法参数，成员变量。可以用来做嵌套校验。
2. @validated作用范围类，方法参数。不可以用来做嵌套校验。可以分组，@valid不可以分组。
3. 可以做一个全局捕获异常返回给前端校验消息
4. 使用@valid注解

@ExceptionHandler(value = BindException.class)
    @ResponseStatus(value = HttpStatus.BAD_REQUEST)
    public ObjectRestResponse bindException(BindException e){
        List<String> strings = new ArrayList<>();
        List<FieldError> fieldErrors = e.getBindingResult().getFieldErrors();
        for (FieldError fieldError : fieldErrors) {
            String defaultMessage = fieldError.getDefaultMessage();
            strings.add(defaultMessage);
        }
        ObjectRestResponse response = new ObjectRestResponse();
        response.setRel(false);
        response.setMsg("参数错误");
        response.setResult(strings);
        return response;
    }

1. 使用@validated注解

@ExceptionHandler(value = ConstraintViolationException.class)
    @ResponseStatus(value = HttpStatus.BAD_REQUEST)
    public ObjectRestResponse parmeterNotValidException(ConstraintViolationException e){
        String message = e.getConstraintViolations().stream().map(ConstraintViolation::getMessage).collect(Collectors.joining());
        ArrayList<String> strings = new ArrayList<>();
        strings.add(message);
        ObjectRestResponse response = new ObjectRestResponse();
        response.setRel(false);
        response.setMsg("参数错误");
        response.setResult(strings);
        return response;
    }

1. 使用@notnull @notblank @max等等

@ExceptionHandler(value = BindException.class)
    @ResponseStatus(value = HttpStatus.BAD_REQUEST)
    public ObjectRestResponse bindException(BindException e){
        List<String> strings = new ArrayList<>();
        List<FieldError> fieldErrors = e.getBindingResult().getFieldErrors();
        for (FieldError fieldError : fieldErrors) {
            String defaultMessage = fieldError.getDefaultMessage();
            strings.add(defaultMessage);
        }
        ObjectRestResponse response = new ObjectRestResponse();
        response.setRel(false);
        response.setMsg("参数错误");
        response.setResult(strings);
        return response;
    }
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    @ResponseStatus(value = HttpStatus.BAD_REQUEST)
    public ObjectRestResponse methodArgumentNotValidException(MethodArgumentNotValidException e){
        List<String> strings = new ArrayList<>();
        List<FieldError> fieldErrors = e.getBindingResult().getFieldErrors();
        for (FieldError fieldError : fieldErrors) {
            String defaultMessage = fieldError.getDefaultMessage();
            strings.add(defaultMessage);
        }
        ObjectRestResponse response = new ObjectRestResponse();
        response.setRel(false);
        response.setMsg("参数错误");
        response.setResult(strings);
        return response;
    }
}