📄 guessnumber.jsp
字号:
<%@ page language="java" %>
<%@ page import="java.lang.*" %>
<%@ page contentType="text/html; charset=gb2312" %>
<%@ page import="java.util.*" %>
<%@ include file="Guess.jsp" %>
<%
String answerNum=null ;
Cookie[] cookies=request.getCookies() ;
if( cookies!=null )
for( int i=0 ; i<cookies.length ; i++ )
if( cookies[i].getName().equals( "ANSWER" ) )
answerNum=cookies[i].getValue() ;
String guessNum=null ;
String message=null ;
boolean gameOver=false ;
if( answerNum==null ) {
answerNum=randNum() ;
Cookie c=new Cookie( "ANSWER", answerNum ) ;
response.addCookie( c ) ;
}
else {
guessNum=request.getParameter( "guess_number" ) ;
int[] result=checkNumber( guessNum, answerNum ) ;
message=getMessage( result ) ;
if( result[0]==0 ) {
gameOver=true ;
Cookie c=new Cookie( "ANSWER", "" ) ;
c.setMaxAge( 0 ) ;
response.addCookie( c ) ;
}
}
%>
<html>
<title>应用cookie的猜数字</title>
<body bgcolor="#FFFFFF">
<center>
<font size=5 color=blue>
猜数字
</font>
</center>
<BR>
<HR>
<BR>
<form name="form1" method="get" action="GuessNumber.jsp" >
请输入四位数：
<input type="text" name="guess_number" size="4" maxlength="4" >
<input type="submit" name="submit" value="确定" >
</form>
<%
if( message!=null ) {
%>
<%=message %>
<%
}
if( gameOver ) {
%>
<form name="form2" method="get" action="GuessNumber.jsp" >
<input type="submit" name="submit" value="继续猜数字" >
</form>
<%
}
%>
</body>
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