通过AOP或其他方式拦截已处理（捕获）的异常

Question

Is there any way I read exception from below method and pass it to other method for track. Response of catch block is different from exception.

Either adding some annotation or spring AOP or any other way.

public void function(){
  try{
    method();
  }
  catch(Exception e){
    return response;
  }
}

Answer 1

If you want to do it with AOP, you have @AfterThrowing annotation that you can use:

@AfterThrowing(pointcut = "execution(* example.*(..))", throwing = "ex")
public void logError(Exception ex) {
    ex.printStackTrace();
}

If you are using spring web and lombok you can just add @SneakyThrows to the method that throws checked exception and create a @org.springframework.web.bind.annotation.ExceptionHandler to handle the Exception type.

Answer 2

You can have a method with an exception parameter:

public void handleException(Exception e) {
    e.printStackTrace(); //for example print it   
}

Then you can pass your exceptions to this method:

try {
   //some code that can throw exception
} catch(Exception e) {
   handleException(e);
}

Answer 3

I think what you want is to intercept an exception handler, not a thrown exception. For that you need to switch from Spring AOP to AspectJ mode as explained in the Spring manual .

For more details on the AspectJ handler() pointcut which does what you want, see my answers with code examples here:

• https://stackoverflow.com/a/15849765/1082681
• https://stackoverflow.com/a/42093318/1082681

The handler() pointcut is also described in the AspectJ documentation .