Third lesson: Configuring SPRINGMVC using annotations

Part I: Program structure

Part II: Configuration and Testing

1. Configure the Scan package

      <!---      <base-package = " Cn.shxy.web.controller "/>

2. Enable annotations

      <!---      <class = " Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter "/>       <class= " Org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping "/>

3. Write the request code

 PackageCn.shxy.web.controller;ImportOrg.springframework.stereotype.Controller;Importorg.springframework.web.bind.annotation.RequestMapping;ImportOrg.springframework.web.bind.annotation.RequestMethod;ImportOrg.springframework.web.servlet.ModelAndView;/*** Controller class *@authorJohn **/@Controller Public classAnnotationcontroller {/*** Request Path Configuration *@return     */@RequestMapping (Value= "/user/hello", method =requestmethod.get) PublicModelandview Hello () {return NewModelandview ("/index", "msg", "Zhang San"); } @RequestMapping (Value= "/test/index", method =requestmethod.get) PublicModelandview Index () {return NewModelandview ("/index", "MSG", "John Doe"); }}

4. Testing

Open Browser, browse path: Http://localhost:8080/mvc1/test/index

Part III: annotation optimization

1. Enable annotation optimization

      <!---      < />

2, @RequestMapping optimization

@RequestMapping ("/test/hello")    public  String Hello (httpservletrequest request) {        Request.setattribute ("msg", "Zhang San");         return "/index";    }

3. Request Path Optimization

 PackageCn.shxy.web.controller;Importjavax.servlet.http.HttpServletRequest;ImportOrg.springframework.stereotype.Controller;Importorg.springframework.web.bind.annotation.RequestMapping;/*** Controller class *@authorJohn **/@Controller @requestmapping ("/USER") Public classAnnotationcontroller {/*** Request Path Configuration *@return     */@RequestMapping ("/test/hello")     PublicString Hello (httpservletrequest request) {Request.setattribute ("MSG", "Zhang San"); return"/index"; } @RequestMapping ("/gxt/index")     PublicString Index (httpservletrequest request) {Request.setattribute ("MSG", "Zhang San"); return"/index"; }}

Third lesson: Configuring SPRINGMVC using annotations