Controller advice can also be used to implement common exception handling across controllers.

Take a look at the following code:

    @ControllerAdvice 
    public class ExceptionController { 
      private Log logger =  
      LogFactory.getLog(ExceptionController.class); 
      @ExceptionHandler(value = Exception.class) 
      public ModelAndView handleException 
      (HttpServletRequest request, Exception ex) { 
         logger.error("Request " + request.getRequestURL() 
         + " Threw an Exception", ex); 
         ModelAndView mav = new ModelAndView(); 
         mav.addObject("exception", ex); 
         mav.addObject("url", request.getRequestURL()); 
         mav.setViewName("common/spring-mvc-error"); 
         return mav; 
        } 
     }

Some things to note are as follows:

• @ControllerAdvice: Controller Advice, by default, is applicable to all controllers.
• @ExceptionHandler(value = Exception.class): Any method with this annotation will be called when an exception of the type or the sub-type of the class specified(Exception.class) is thrown in the controllers.
• public ModelAndView handleException (HttpServletRequest request, Exception ex): The exception that is thrown is injected into the Exception variable. The method is declared with a ModelAndView return type to be able to return a model with the exception details and an exception view.
• mav.addObject("exception", ex): Adding the exception to the model so that the exception details can be shown in the view.
• mav.setViewName("common/spring-mvc-error"): The exception view.