include指令
语法：<%@ include file=”路径+文件名” %>
把指定的文件包含到当前jsp中。
application(应用的全局变量)
实现用户之间的数据共享
常用方法：
Application.setAttribute(Stirng key,Object value);
Application.getAttribute(String key);
1 <%@page import="java.text.SimpleDateFormat"%>
2 <%@page import="java.util.Date"%>
3 <%@ page language="java" contentType="text/html; charset=utf-8"
4 pageEncoding="utf-8"%>
5 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
6 <html>
7 <head>
8 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
9 <title>访问人数</title>
10 </head>
11 <body>
12 <%
13 Integer count=(Integer) application.getAttribute("count");
14 if(count != null){
15 count = count+1;
16 }else{
17 count = 1;
18 }
19 application.setAttribute("count", count);
20 %>
21
22 <%
23 Integer i=(Integer)application.getAttribute("count") ;
24 out.print("统计访问量：目前有"+i+"个人访问本网站");
25 %>
26
27 </body>
28 </html>
示例
时间： 2024-11-12 15:31:01