Question

I am using a Default AnnotationMethodHandlerAdapter which I believe should enable support for @ExceptionHandler. Unluckily, a ServletRequestBindingException is thrown if a call to a handler method like this below is coming in – and not Exception handler is invoked.

@RequestMapping(value = "/v1/products/{code}", method = RequestMethod.GET, headers = "Accept=application/xml,application/json")
@ResponseBody
public ProductDemoDTO getProductByCode(@PathVariable final String code,
        @RequestParam(required = false, defaultValue = "BASIC") final String options)
{
    //omitted
}

Here teh ExceptionHandler, never called:

@ExceptionHandler(Throwable.class)
@ResponseBody
@ResponseStatus(value = HttpStatus.BAD_REQUEST)
//TODO not being called?
public void handleException(final Exception e, final HttpServletRequest request, final Writer writer) throws IOException
{
    writer.write(String.format("{\"error\":{\"java.class\":\"%s\", \"message\":\"%s\"}}", e.getClass(), e.getMessage()));
}

Does anyone know why the ExceptionHandler is not called?

Answer 1

you cannot handle it with spring custom implementation.

it may not an elegant solution but you still can catch it with web.xml <error-page> tag. you can catch exception type or error code from here.