Auto refreshing method in jsp allows you to refresh the webpage automatically by setting an time interval. Here, the auto refreshing is done through setIntHeader() method.
<%@ page import="java.io.*,java.util.*" %>
<html>
<head>
<title>JSP code for refresh page automatically</title>
</head>
<body>
<center>
<h4>Auto Refresh Header--Page will refresh automatically after 5 seconds.</h4>
<%
// Set refresh, autoload time as 5 seconds
response.setIntHeader("Refresh", 5);
// Get current time
Calendar calendar = new GregorianCalendar();
String am_pm;
int hour = calendar.get(Calendar.HOUR);
int minute = calendar.get(Calendar.MINUTE);
int second = calendar.get(Calendar.SECOND);
if(calendar.get(Calendar.AM_PM) == 0)
am_pm = "AM";
else
am_pm = "PM";
String CT = hour+":"+ minute +":"+ second +" "+ am_pm;
out.println("Current Time: " + CT + "n");
%>
</center>
</body>
</html>