代码如下：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.util.Random"%>
<html>
<head>
<title>系统将随机生成一个数</title>
</head>
<body>
<jsp:useBean id ="guess" class ="GuessNumber" scope="session" />
<%
Random randomNumbers=new Random();
int answer=1+randomNumbers.nextInt(100);
String str=response.encodeRedirectURL("guess.jsp");
%>
<jsp:setProperty name ="guess" property ="answer" value="<%=answer%>" />
<h3>随系统随机生成了一个1到100之间的整数,猜猜是什么数?</h3>
<hr>
<form action="<%=str%>" method="get">
输入你猜的数:<input type="text"name="guessNumber">
<input type="submit" value="提交">
</form>
</body>
</html>
