Spring SpringMVC is the module that implements the web mvc framework design pattern, the first user makes a request, the request reaches the front end SpringMVC controller (the DispatcherServlet), the front end of the controller according to a user request processor mapper url to find the matching of the url handler, and returns an execution chain, front end processor, the controller then requests the adapter calls the appropriate handler for processing and returns to the front controller ModelAndView a distal end view of the controller then requests parser parses the returned logical view, a front control final will return to view and to render the data loaded to the request field, returned to the user.
As DispatcherServlet springMVC the front controller, receives the user's request and returns the user to the appropriate view according to a user's request.
