In Spring there are two different constructs that get called "interceptors".
First, there are Handler Interceptors, which are part of the Spring MVC framework, and allow you to add interceptor logic to web requests. I suspect this is what you meant when you said "interceptors"
Then you have Method Interceptors, which are part of the Spring AOP framework. These are much more general mechanism than Handler Interceptors, but also potentially more complex. In AOP terminology, such interceptors provide a means of coding the "aspects" you're talking about. The
AOP aspects are a complex subject. If you're interested, I suggest that you skim over the stuff in the Spring AOP manual and get a feel for the terminology, and what it can and can't do for you.