An advice is the implementation of cross-cutting CONCERNS can be applied to other modules of the spring application. Advices are of MAINLY 5 types:

• Before:
  • This advice executes before a join point, but it does not have the ability to prevent execution flow from proceeding to the join point (unless it throws an exception).
  • To use this, use @Before annotation.
• AfterReturning:
  • This advice is to be executed after a join point COMPLETES normally i.e if a method returns without THROWING an exception.
  • To use this, use @AfterReturning annotation.
• AfterThrowing:
  • This advice is to be executed if a method exits by throwing an exception.
  • To use this, use @AfterThrowing annotation.
• After:
  • This advice is to be executed REGARDLESS of the means by which a join point exits (normal return or exception encounter).
  • To use this, use @After annotation.
• Around:
  • This is the most powerful advice surrounds a join point such as a method invocation.
  • To use this, use @Around annotation.