Jsp记数器[刷新不走字]

Tags: jsp记数器[刷新不走字]嘎嘎！

<%@ page contentType="text/html;charset=gb2312"%>
<%@ page language="java" import="java.io.*"%>

<%!
步更新计数器
    synchronized void counter(){
        ServletContext application=getServletContext();       造application对象（可选）
        String szPath=application.getRealPath("/");               到当前路径
    szPath=szPath+"hits.txt";                                       数器文件 0-9999999999999...
        String szRecord="";                                               数 String
     int nRecord=0;                                                 数 int
 
        try{
            BufferedReader file=new BufferedReader(new FileReader(szPath));
            szRecord=file.readLine();                                   取计数器文件
        }
        catch(IOException e){
            e.printStackTrace(System.err);
        }
        if(szRecord==null)  szRecord="0";                          果计数器文件为空

        nRecord=java.lang.Integer.parseInt(szRecord)+1;    数器+1
        try{
            File f=new File(szPath);
            PrintWriter pw=new PrintWriter(new FileWriter(f));
            pw.print(nRecord);                                         文件
            pw.close();
        }
        catch(IOException e){
            System.out.println(e);
        }
    } 
%>

<% 
示计数器
    if(session.isNew()){                                                果是新用户
        counter();
    }   
    String Path=application.getRealPath("/");
    String szPath=Path+"hits.txt";
    String szRecord="";
    BufferedReader file=new BufferedReader(new FileReader(szPath));
    try{
        szRecord=file.readLine();
    }
    catch(IOException e){
        System.out.println("文件未找到！");
    }
 
 示7位数字gif图像
    String szOut="";
    int i=0;
    int k=7-szRecord.length();                                     个数
    for (i=0;i        szOut=szOut+"";
    }       
    for (i=0;i        szOut=szOut+"";
    }
    szOut=szOut+" ";
    out.println(szOut);    
%>