Spring sending 401 HTTP response via Controller

Lets say i have a Controller like this one :

@RequestMap开发者_StackOverflow中文版ping(method=RequestMethod.GET, value="/error")
    public  void getresponse(ModelMap modelMap) {

modelMap.addAttribute("categories", "");
}

Is it possible to send a 401 HTTP error when this controller is called? If yes, how ?

Yes its possible. Annotate it with:

@ResponseStatus(value=HttpStatus.UNAUTHORIZED)