SpringMVC执行流程

 

 

1.DispatcherServlet接收用户请求

2.DispatcherServlet调用HandlerMapping

3.HandlerMapping根据请求url找到相应的Handler，返回HandlerExecutionChain

4.DIspatcherServlet调用相应的HandlerAdapter

5.HandlerAdapter调用相应的Handler

6.Handler返回ModelAndView

7.HandlerAdaptor将ModelAndView返回给DispatcherServlet

8.DispatcherServlet将ModelAndView传给ViewResolver

9.ViewResovler解析后返回具体的View

10.DispatcherServlet对View进行视图渲染

11.DispatcherServlet将View响应给用户