JSP實(shí)現(xiàn)百萬(wàn)富翁猜數(shù)字游戲

%@ page language="java" contentType="text/html; charset=UTF-8"
 pageEncoding="UTF-8"%>
!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
html>
head>
meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
title>Insert title here/title>
/head>
body>
% 
 String result=(String)request.getAttribute("result");
 if(result!=null){
  out.write("font color='red'>"+result+"'/font>");
 }
%>

% 
 Integer times=(Integer)request.getAttribute("times");
 if(times!=null){
  out.write("你還有"+(5-times)+"次機(jī)會(huì)!");
 }
%>
br/>
form action="/zxz/zxz" method="POST">
 請(qǐng)輸入你的數(shù)(20以下)：input type="text" name="Lucy" />br/>
 %
 if(times!=null){
 %>
  input type="hidden" name="times" value="%=times %>"/>
 % 
 }
 %>
 input type="submit" value="競(jìng)猜" />
/form>
/body>
/html>

package hah;

import java.io.IOException;
import java.util.Random;

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


/**
 * Servlet implementation class zxz
 */
@WebServlet("/zxz")
public class zxz extends HttpServlet {
 private static final long serialVersionUID = 1L;

 int answer;
 public void newGame() {
 Random random=new Random();
 answer=random.nextInt(20);
 }
 public zxz() {
 newGame();
 }
 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
 response.setContentType("text/html;charset=utf-8");
 String lucyStr=request.getParameter("Lucy");
 Integer lucyNb=null;
 System.out.println("答案："+answer);
 if(!lucyStr.equals("")) {
  lucyNb=Integer.parseInt(lucyStr);
 }
 Integer times=1;

 String timeStr=request.getParameter("times");
 if(timeStr!=null!timeStr.equals("")) {
  times=Integer.parseInt(timeStr)+1;
 }
 if(times5) {
  String result="";
  if(lucyNb>answer) {
  result="大了";  
  }else if(lucyNbanswer) {
  result="小了";
  }else if(lucyNb==answer) {
  result="中了";
  times=null;
  }
  request.setAttribute("times", times);
  request.setAttribute("result", result);
 }else {
  newGame();
  response.getWriter().write("游戲結(jié)束a href='"+request.getContextPath()+"/One.jsp'>再來一把/a>");
  return;
 }
 request.getRequestDispatcher("/One.jsp").forward(request, response);
 }


 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
 doGet(request, response);
 }

}

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