Showing an error occurred view on exception or 404

[Hamidam]

which works fine for all exeptions occuring under core url.
I have

@Controller(value="core/*")
public class CoreController {

    public static String exceptionOccurredView = "/core/exceptionOccurred";

    @ExceptionHandler(Throwable.class)
    public ModelAndView exceptionOccurred(Throwable exception, HttpServletResponse response, HttpServletRequest request) {
        ModelAndView mv = new ModelAndView();
        mv.setViewName ( exceptionOccurredView );
        mv.addObject   ( "requestedUrl", Core.getCurrentUrlWithParams() );
        mv.addObject   ( "exception", exception );

        System.out.println( "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + Core.getCurrentUrlWithParams() );
        return mv;
    }   

    @RequestMapping
    public void test0(HttpServletResponse response, HttpServletRequest request) throws IOException {
        throw new IOException();
    } 

}

if I go to url

localhost:8080/core/test0

the error page is shown. Also if I go to:

localhost:8080/core/actionDoesNotExist

but if I use:

localhost:8080/controllerDoesNotExist/test0

The error does not get shown, since the annotation @ExceptionHandler is valid only per controller.

So how can you achieve a global, non-controller attached exception/error handler ?

[Marten Deinum]

By configuring a SimpleMappingHandlerExceptionResolver... You cannot get this behavior with @ExceptionHandler annotated methods.

[Hamidam]

That doesnt work either. Exact same behaviour when going for a controller that does not exist. It only works for non-existing action in a controller that does exist.

I also tried with implementing my own handler. That didn't work either with same result.

[Marten Deinum]

And that is a url that maps to the dispatcherservlet? It will only work if at least the DispatcherServlet is hit else you have to rely on the exception handling/error pages in the web.xml.

Doh.. I always fall into this trap... When the handler isn't found the dispatcherservlet handles the exception it sends a 404 to the client. So you have to specify the error-page in the web.xml or override the noHandlerFound method in the DispatcherServlet and create your own implementation.

[Hamidam]

Yes, I believe a 404 is the way to go... i believe it is only the 404 that requires this type of special handling...