1. The user sends a request
2. Call DispatcherServlet to find the processor HandleMapping processor mapper address mapping
3. HandleMapping-"DispatcherServlet and then find the central controller
4.
Go to the processor adapter 5 and call the processor HandlerController
6 Return to ModelAndView
78, through the DispatcherServlet view resolution, viewResoler view resolution
9 Return to view
10 Render View View View
11 Respond to customers