jsp+servlet实现猜数字游戏

<%@ page language="java" import="java.util.*" 
cOntentType="text/html;charset=utf-8"%>

  
  
 
 <%
 String message=(String)session.getAttribute("message");
 %>
 
  
  <%=message %>
  
  
  
  
  
 

<%@ page language="java" import="java.util.*" pageEncoding="utf-8" 
cOntentType="text/html;Charset=utf-8"%>

 
  
 
 <% session.setAttribute("message", "请您猜数");
 // HttpSession session =request.getSession(true);
 int randomNumber=(int)(Math.random()*100)+1;//获取一个随机数
 session.setAttribute("saveNumber",new Integer(randomNumber));
 %>
 
访问或刷新该页面可以随机跌倒一个1，到100之间的数字
 
单击下面链接可以访问去猜数字
 去猜数字
 

import java.io.IOException;
import java.io.PrintWriter;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
 
public class HandleGuess extends HttpServlet { 
 public void doPost(HttpServletRequest request,HttpServletResponse response)
 throws ServletException,IOException{
 request.setCharacterEncoding("utf-8");
 response.setContentType("text/html;charset=utf-8");
 PrintWriter out=response.getWriter(); 
 //获取客户猜测提交的数
 int guessNumber=Integer.parseInt(request.getParameter("guessnumber"));
 //获取客户的会话对象
 HttpSession session=request.getSession();
 Integer integer=(Integer)session.getAttribute("saveNumber");
 int realNumber=integer.intValue();
 System.out.println(realNumber);
 System.out.println(guessNumber);
 if(guessNumber>realNumber){
 session.setAttribute("message", "您猜大了");
 System.out.println("您猜大了---no");
 response.sendRedirect("inputNumber.jsp");
 }
 else if(guessNumber