[jsp]代码库
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.io.*" %>
<!--jsp计数器-->
<html>
<head>
<title>jsp计数器</title>
</head>
<body>
<%
BufferedReader file; //BufferedReader对象，用于读取文件数据
String nameOfTextFile =request.getRealPath("/") + "\\counter.txt";
//读取
file = new BufferedReader(new FileReader(nameOfTextFile));
String readStr =null;
int writeStr =0; //如果计数文本中的计数值为空则让它显示时变成1并写入
try
{ readStr = file.readLine(); }
catch (IOException e)
{ System.out.println("读取数据错误."); }
if (readStr == null)
readStr = "没有任何记录";
//判断cookie,第一次登陆时加1,刷新时不累计计数
else if (request.getHeader("Cookie")==null)
{ writeStr = Integer.parseInt(readStr)+1;}
else
{ writeStr = Integer.parseInt(readStr);}
//写入时控制因为刷新引起的重复计数
if (request.getHeader("Cookie")==null)
{
try {
PrintWriter pw = new PrintWriter(new FileOutputStream(nameOfTextFile));
pw.println(writeStr);
pw.close();}
catch(IOException e) {
out.println(e.getMessage());}
}
%>
<p align="center">您是CNJSP的第<b><font color="red"><%=writeStr%></font></b>位客人。</p>
</body>
</html>
会python真的可以为所欲为0(回)
220天前
这里还有人吗1(回)
406天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
630天前
鸽子
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714天前