application 网站计数器
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <% Object count = Integer.parseInt(application.getAttribute("count").toString()) ; if(count==null)//首先判断是否存在该全局变量 { //创建全局属性 application.setAttribute("count",1) ; } else { int co = Integer.parseInt(count.toString()) ; //定义变量并赋值 out.print(co++) ; //写会 application.setAttribute("count", co) ; } %> <a href="application2.jsp" >访问</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <% //获取application属性 int count = Integer.parseInt(application.getAttribute("count").toString()) ; out.print("网站计数器:"+count++) ; application.setAttribute("count", count) ; %> </body> </html>