【JSP开源代码栏目提醒】:网学会员为广大网友收集整理了,ex9_21.jsp,希望对大家有所帮助!
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
<%--基于文本文件的计数器--%>
<%@ page import="java.io.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>JSP通用范例大全</title>
</head>
<body>
<center><font size=5>基于文本文件的计数器</font></center>
<br><hr><br>
<center>欢迎您!您是第
<%
String path=request.getRealPath("/");
File fileName=new File(path+"counter.txt");
if(!fileName.exists()){
fileName.createNewFile();
FileWriter w=new FileWriter(fileName);
w.write("0");
w.close();
}
BufferedReader br=new BufferedReader(new FileReader(fileName));
String strNum=br.readLine();
int Num=Integer.parseInt(strNum)+1;
br.close();
out.print(Num);
FileWriter fw=new FileWriter(fileName);
fw.write(String.valueOf(Num));
fw.close();
%>
位访客
</center>
</body>
</html>
上一篇:
ex9_20.jsp
下一篇:
村落共同体的核心架构研究