How to return a 400 status code, but return an int

Asked May 29 '15 at 14:08

Active May 29 '15 at 15:15

Viewed 918 times

I want to do this instead of a null pointer exception in a java method return new ResponseEntity<String>(HttpStatus.BAD_REQUEST); but my method returns an int not a string. The main thing I want to do is return a 400 Status code. What can I do?

I tried throw new IllegalArgumentException(arg + "is not a valid argument; positive value expected"); but that returns a 500 status code with a good message. I'm doing this on a web service if that helps.

I also tried return new ResponseEntity<Integer>(HttpStatus.BAD_REQUEST);, but that doesn't seem to work either.

edited May 29 '15 at 15:15

asked May 29 '15 at 14:08

apkisbossin

What Web-Service Tech do you use? In Jersey I implemented this by deriving my own Exception from WebApplicationException and passed the status code in a constructor. In the web-method you simply throw this custom exception. – morpheus05 May 29 '15 at 14:24
I'm using Jave EE, Spring MVC? – apkisbossin May 29 '15 at 14:29
Duplicate question I guess: http://stackoverflow.com/questions/16232833/how-to-respond-with-http-400-error-in-a-spring-mvc-responsebody-method-returnin – morpheus05 May 29 '15 at 14:31
He is returning a String though, I tried Integer, not working :/ – apkisbossin May 29 '15 at 14:36
You have to return ResponseEntity instead of an int. You have to look at the accepted answer. – morpheus05 May 29 '15 at 14:43
Then provide the error... – Thorsten Schöning May 29 '15 at 16:03
Hi, did you find an answer for this question? – user12707940 Jan 23 '20 at 07:16

How to return a 400 status code, but return an int

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