Spring MVC验证错误消息

Question

I have a problem with the validation in spring MVC. If I send an invalid request for the body, the application returns to the bad request but not my custom message.

The code is :

public @ResponseBody ResponseEntity<BaseModel> newTicket(@Valid @RequestBody Ticket ticket, Locale locale, BindingResult bindingResult ){
    if(bindingResult.hasErrors()) {
        logger.info("error");
        throw new BadRequestException("Bad Request");
    }

if I try to put the application in debug mode, the if is never executed.

Can someone help me?

Answer 1

You can direct the bad request error in the following way:

@ExceptionHandler
@ResponseStatus(HttpStatus.BAD_REQUEST)
public void handle(HttpMessageNotReadableException e) {
    //do something here in case of bad request.
}

You can go on and customize according to your needs.

Answer 2

As you are throwing throw new BadRequestException("Bad Request"); so it is not displaying your custom message , Instead of throwing this return the same page which you taking input.