SpringMVC两种处理器适配器

1、实现Controller接口的处理器适配器

 package com.xiaostudy;

 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 import org.springframework.web.servlet.ModelAndView;
 import org.springframework.web.servlet.mvc.Controller;

 public class MyController implements Controller{

     public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
         //创建视图
         ModelAndView modelAndView = new ModelAndView();

         //设置页面回显数据
         modelAndView.addObject("hello", "xiaostudy");

         //返回物理视图,指定跳转的视图
 //        mv.setViewName("/WEB-INF/index.jsp");

         //返回逻辑视图
         modelAndView.setViewName("index");

         return modelAndView;
     }

 }

2、实现HttpRequestHandler接口的处理器适配器

 package com.xiaostudy;

 import java.io.IOException;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 import org.springframework.web.HttpRequestHandler;

 public class HttpController implements HttpRequestHandler{

     @Override
     public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
         request.setAttribute("hello", "xiaostudy.xiaostudy");
         request.getRequestDispatcher("/WEB-INF/index.jsp").forward(request, response);
     }

 }

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