In Spring 3 is it possible to dynamically set the reason of @ResponseStatus?

Question

I have a custom exception class annotated to return a given HttpStatus:

@ResponseStatus(value=HttpStatus.BAD_REQUEST, reason=\"Invalid parameter\")
         


        

Answer 1

The correct way is to introduce exception handler in your controller, then you can set response body of any status code:

@Controller
@RequestMapping(produces = MediaType.APPLICATION_JSON_VALUE)
public class SomeController {
...
  @ExceptionHandler(BadRequestException.class)
  @ResponseStatus(HttpStatus.BAD_REQUEST)
  public @ResponseBody
   Map handleIndexNotFoundException(BadRequestException bre,
                                           HttpServletRequest request, HttpServletResponse resp) {
     HashMap result = new HashMap<>();
     result.put("error", true);
     result.put("error_message", bre.getMessage());
     return result;
  }
}

Move over you don't have to pollute your model/exception classes with any Spring Web MVC annotations and dependency.

If you want to share the handler with all controller look into @ControllerAdvice.