在整个服务器运行过程中，application对象只有一个
下面的例子是访问次数的统计
<%@ 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>应用对象 application的使用</title>
</head>
<body>
<%
if(application.getAttribute("counter") == null){
application.setAttribute("counter", "1");
}else{
String num = application.getAttribute("counter").toString();
int count = Integer.valueOf(num).intValue();
count++;
application.setAttribute("counter", String.valueOf(count));
}
%>
您是第<%= application.getAttribute("counter") %> 位访问者！
</body>
</html>