Aspect-Oriented Programming (AOP) is a new programming technology. It compensates the weakness of Object-Oriented Programming (OOP) at applying common behavior that spans multiple non-related object models. Interceptor adopts the logos of AOP and uses a way of hot swap solving these problems. At this issue, we research the AOP technology of Java Web called Struts interceptor. We show the advantage of this new programming method through an online submission and review system which using AOP method in the authentication and authorization.