I want to create an exception handler which will intercept all controllers in my project. Is that possible to do? Looks like I have to put a handler method in each controller. Thanks for your help. I have a spring controller that sends Json response. So if an exception happens I want to send an error response which can be controlled from one place.
Since Spring 3.2 you can use @ControllerAdvice annotation. You can declare an @ExceptionHandler method within an @ControllerAdvice class in which case it handles exceptions from @RequestMapping methods from all controllers.
@ControllerAdvice
public class MyGlobalExceptionHandler {
@ExceptionHandler(value=IOException.class)
public @ResponseBody String iOExceptionHandler(Exception ex){
//
//
}
// other exception handler methods
// ...
}
An abstract class where you define the exception handlers will do. And then make your controllers inherit it.