————————application实现网页计数器改进版index.jsp————————————————
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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>My JSP 'index.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>
<h4>application对象实现网页计数器</h4>
<%
int sum=0;
Object objsum=application.getAttribute("sum");
if(objsum==null){
objsum="1";
}
sum=Integer.parseInt(objsum.toString());
sum++;
application.setAttribute("sum",sum);
%>
您是第<%=sum %>个访问者!
</body>
</html>
本文介绍了一个使用Java实现的简单网页计数器案例。通过应用对象存储累计访问次数,并在每次页面加载时递增该计数器。该计数器在Web服务器运行期间持续记录总访问量。
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