application实现网页访问计数功能

2022-09-18 16:41:21 # javaweb #code #javaweb #application

用application实现一个网页计数功能，将计数器放在application中

¶application.jsp

<%--
  Created by IntelliJ IDEA.
  User: DELL
  Date: 2022/9/18
  Time: 16:43
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <%
        int num;
        if(application.getAttribute("num")==null){
            num=0;
        }
        else{
            num = (Integer)application.getAttribute("num");
            num++;
        }
        application.setAttribute("num",num);
    %>
    <h3>页面已被访问了<%= num%>次</h3>
</body>
</html>

2022-09-18 16:41:21 # javaweb #code #javaweb #application