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java web 程序---猜数字游戏

2014-05-04 11:04 363 查看

思路：1.第一个是随机产生的数字，告诉我们去猜 cai.jsp

　　　2.第二个是一个form表单，提交按钮后，将连接到验证页面 test1.jsp

　　　3.第三个是比较猜的数和随机数。对了，提示再玩一次，不对则继续猜。用一个超链接 test2.jsp

老师的思路越来越难搞了。怎么写啊，用到hashMap时候

　　

　　cai.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

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

<title>My JSP 'cai.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

</head>

<body>
<%
int number=(int)(Math.random()*100);
session.setAttribute("number",number);
%>
<a href="test1.jsp"> 去猜数字---》》开始</a>
</body>
</html>

　　test1.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

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

<title>My JSP 'test1.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

</head>

<body>
<form action="test2.jsp">
<input type="text" name="guess"/>
<input type="submit" value="guess"/>

</form>
</body>
</html>

　　test2.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

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

<title>My JSP 'test2.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

</head>

<body>
<%
Integer str1=(Integer)session.getAttribute("number");
String str2=request.getParameter("guess");
int num1=Integer.valueOf(str1);
int num2=Integer.parseInt(str2);
if(num1==num2){
out.print("您猜对了---再玩一次 <a href='cai.jsp'>guess</a>");
}else if(num1>num2){
out.print("您猜小了---<a href='test1.jsp'>guess</a>");
}else{
out.print("您猜大了---<a href='test1.jsp'>guess</a>");
}

%>
</body>
</html>

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