WebApplication:
1. Browser UI: ajax request, http request, location, document, window, js, DOM tree
2. Servelet Container:
2.1 accept http request
2.2 wrappe to HttpServletRequest and back to client with HttpServletResponse
2.3 URL mapping
2.4. View
2.4.1 View name
2.4.2 View Template
2.4..3 View Resolver
2.4.4 View controller
2.4.5 View Router
2.5 Interception
2.6 Filter
2.7 URL mapping Handler -->Controller
下图中 BaseInterceptor::preHandler & TestInterceptor::preHandler 应该在DispatcherServlet 之后
原文：https://www.cnblogs.com/iiiDragon/p/9159743.html