?? counter2.jsp
字號(hào):
<%@ page language="java" %>
<%@ page contentType="text/html;charSet=gb2312" %>
<%@ page import="java.util.*" %>
<%@ page import="java.lang.*" %>
<%@ page import="java.io.*" %>
<html>
<body>
歡迎來(lái)到JSP World!
<br>
<%
String count;
String fdir="examples\\count.txt";
int num=0;
try{
File fl=new File(fdir);
RandomAccessFile si=new RandomAccessFile(fl,"rw");
count=si.readLine();
if (count==null)
num=1;
else
num=Integer.valueOf(count).intValue()+1;%>
你是第<%
//打印數(shù)據(jù)
out.println(num);
si.close();
%>訪問(wèn)者.
<%
fl.delete();
fl=new File(fdir);
si=new RandomAccessFile(fl,"rw");
count=String.valueOf(num);
si.writeBytes(count);
si.close();
}catch(IOException e)
{%><%=e.toString() %><%}%>
<br>
attention:這是直接用java文件輸入輸出流來(lái)操作文件.
</body>
</html>?? 快捷鍵說(shuō)明
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