网页计数器源码

来源：互联网发布：知乎不能搜索编辑：程序博客网时间：2024/04/28 19:31

<%@ page language="java" pageEncoding="gb2312" %>
<html>
<head>
     </head>
<body>
    <%!
        synchronized void countPeople(){
            ServletContext application = getServletContext();
            Integer number = (Integer)application.getAttribute("Count");
            if(number == null){
                number = new Integer(1);
                application.setAttribute("Count",number);
            }else{
                number = new Integer(number.intValue() + 1);
                application.setAttribute("Count",number);
            }
        }
    %>
    <%
         if(session.isNew()){
             countPeople();
             Integer myNumber = (Integer)application.getAttribute("Count");

             session.setAttribute("MyCount",myNumber);
            }

    %>
    <P><P>
    <%int a =((Integer)session.getAttribute("MyCount")).intValue(); %>
    您是第<%=a%>访问本站的客户
</body>
</html>