Advice Types in Spring

---------------------------------------- org.springframework.aop.MethodBeforeAdvice ---------------------------------------- org.springframework.aop.AfterReturningAdvice ---------------------------------------- org.aopalliance.intercept.MethodInterceptor Around advice functions like a combination of before and after advice, with one big difference—you can modify the return value. Not only that, you can also prevent the method from actually executing. ---------------------------------------- org.springframework.aop.ThrowsAdvice public void afterThrowing(Exception ex) throws Throwable public void afterThrowing(Method method, Object[] args, Object target, IllegalArgumentException ex) Throws advice is similar to after returning advice in that it executes after the joinpoint, which is always a method invocation, but throws advice only executes if the method threw an exception. org.springframework.aop.IntroductionInterceptor.ThrowsAdvice does not define any methods; instead, it is simply a marker interface used by Spring. The reason for this is that Spring allows typed throws advice, which allows you to define exactly which Exception types your throws advice should catch. Spring achieves this by detecting methods with certain signatures using reflection. Spring looks for two distinct method signatures.