<%@page language="java" import="java.util.*" pageEncoding="UTF-8"%>

	<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

	<html>

<head>

<base href="<%=basePath%>">

<title>猜数字游戏</title>

</head>

<body>

	<%

    			String value=(String)request.getAttribute("answer");

    			Integer times = (Integer)request.getAttribute("times");

        %>

	<i><h1>请猜猜这个数字</h1>

	<hr>

	<form action="<%=request.getContextPath()%>/GuessServlet" method="post">

		<input type="text" name="number"> <input type="submit"

			value="确定">

		<%

    		if(times!=null){

    	       %>

		<input type="hidden" name="times" value="<%=times %>" />

		<%

    		if(value.equals("=")){

    			out.print("<p style='color:green'>啦啦啦，恭喜你答对啦，");

    		}else{

    			out.print("<p style='color:red'>你还有"+(5-times)+"次机会！同时你猜的有点"+value);

    		}

    	       %></p>

		<%

    	}

    	 %>

	</form> </i>

</body>

	</html>

package com.gqx.work;

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;

public class GuessServlet extends HttpServlet {

	/**

	 * 产生一个随机的数字（666），给5次机会让客户猜测这个数字

	 */

	private static final long serialVersionUID = 1L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		response.setContentType("text/html;charset=utf-8");

		String num=request.getParameter("number");

		Integer time=1;

		String times=request.getParameter("times");

		String value="";

		int key;

		System.out.println(times);

		if (times !=null  &&  !times.equals("")) {

				time=Integer.parseInt(times)+1;

		}

		if (num=="" || num==null) {

			value="请填入数字";

		}else {

			key=Integer.parseInt(num);

			if (key==666) {

				value="=";

			}else if (key>666) {

				value="大";

			}else {

				value="小";

			}

			request.setAttribute("answer", value);

		}

		if (time>4) {

			response.getWriter().write("游戏结束，<a href='"+request.getContextPath()+"/work1/guess.jsp'>再来一局</a>");

			return;

		}

		request.setAttribute("times", time);

		request.getRequestDispatcher("work1/guess.jsp").forward(request, response);

	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		this.doGet(request, response);

	}

}