<%@ page language="java" contentType="text/html; charset=UTF-8 "
pageEncoding="UTF-8"%>
<%@ page import="java.util.*"%>
<!DOCTYPE html>
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<%
if(application.getAttribute("counter") == null ){
application.setAttribute("counter", "1");
}else{
String strnum = null;
strnum = application.getAttribute("counter").toString();
int iconut = 0;
iconut = Integer.valueOf(strnum).intValue();
iconut++;
application.setAttribute("counter", Integer.toString(iconut));
}
%>
You are <% = application.getAttribute ( "counter")%> visitors!
</body>
</html>
Page runs as follows:
After the refresh, the counter is incremented by 1 with the following results:
Replace the browser or replace client address will make it normal access value is incremented. If the Tomcat server is restarted, the counter will again start counting from 1.