Java web网站访问量的统计

时间:2022-08-23 23:32:47

当客户访问网站时就去读这个文件,将服务器重新启动前的计数读入,并在此基础上增加1,然后将新的计数写入到文件中。

参考代码如下:

<html> 

?
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
  <%!
    int number = 0;
    File file = new File("count.txt");
    synchronized void countPeople()
    {
      if(!file.exists())
      {
        number++;
        try{
          file.createNewFile();
          FileOutputStream out = new FileOutputStream("count.txt");
          DataOutputStream dataOut = new DataOutputStream(out);
          dataOut.writeInt(number);
          dataOut.close();
        }catch(IOException ex){}
      }
      else 
        try{
          FileInputStream in = new FileInputStream("count.txt");
          DataInputStream dataIn = new DataInputStream(in);
          number = dataIn.readInt();
          number++;
          in.close();
          dataIn.close();
          FileOutputStream out = new FileOutputStream("count.txt");
          DataOutputStream dataOut = new DataOutputStream(out);
          dataOut.writeInt(number);
          out.close();
          dataOut.close();
        }catch(IOException ex){}
    }
  %>
  <%
    countPeople();
  %>
  <p>
    您是第
    <%=number %>
    个访问网站的客户。
  </p>
</body>
</html>

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。