用jsp编写一个实现页面计数的计数器,要求当刷新页面时,不增加计数
1个回答
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<%@ 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>网页计数器</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>
<%
if(application.getAttribute("counter")==null)
{
application.setAttribute("counter",1);
}
else
{
String str=application.getAttribute("counter").toString();
int icount=Integer.parseInt(str);
if(session.isNew())
{
icount++;
}
application.setAttribute("counter",Integer.toString(icount));
}
%>
您是第<%=application.getAttribute("counter") %>位。
</body>
</html>
<%
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>网页计数器</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>
<%
if(application.getAttribute("counter")==null)
{
application.setAttribute("counter",1);
}
else
{
String str=application.getAttribute("counter").toString();
int icount=Integer.parseInt(str);
if(session.isNew())
{
icount++;
}
application.setAttribute("counter",Integer.toString(icount));
}
%>
您是第<%=application.getAttribute("counter") %>位。
</body>
</html>
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