request实现页面包含

 package cn.itcast.request;

 import java.io.IOException;

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

 import cn.itcast.User;

 //用include实现页面包含
 public class RequestDemo extends HttpServlet {

     public void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

         request.getRequestDispatcher("/MyJsp.jsp").include(request, response);
         response.getWriter().write("heihei!");
     }

     public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

     }

 }