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Current Data & Time Servlet(Auto Refresh per second)

 

Jsp Page: index.jsp

<%-- 
    Document   : index
    Created on : Feb 28, 2012, 3:32:07 PM
    Author     : dell_pc
--%>
<%@page contentType="text/html" 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>Auto Refresh</title>
    </head>
    <body>
        <h1>Access Servlet by servlet's Name!</h1>
        <a href="infoServlet">infoServlet</a><br>
        <a href="CountServlet">CountServlet</a><br>
        <a href="dateTimeServlet">dateTimeServlet</a><br>
        <a href="CookieServlet">CookieServlet</a><br>
        <a href="SessionTrackerServlet">SessionTrackerServlet</a><br>
        <a href="enumerationServlet">enumerationServlet</a><br>
        <a href="IteratorServlet">IteratorServlet</a><br>
        <a href="FibonacciServlet">FibonacciServlet</a><br>
        <a href="sendRedirectServlet">sendRedirectServlet</a><br>
        <a href="encryptDataServlet">encryptDataServlet</a><br>
        <a href="ToDoServlet">ToDoServlet</a><br>
        <a href="sessionBindingServlet">sessionBindingServlet</a>
     </body>
</html>

Servlet:dateTimeServlet.java

package servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 *
 * @author dell_pc
 */
public class dateTimeServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
// Make custom Date and Time
DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
String newDate = dateFormat.format(Calendar.getInstance().getTime());
try {
/* TODO output your page here */
out.println("<html>");
out.println("<head>");
out.println("<title>" + getServletInfo() + "</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet dateTimeServlet at " + request.getContextPath() + "</h1>");
//Browser is refresh in every 1 sec, and date/Time is change on every refresh.
out.println("<meta http-equiv='refresh' content='1'"+"URL='http://localhost:8084/servletExample/dateTimeServlet'> Current date/Time: " + newDate);
out.println("</body>");
out.println("</html>");
} finally {
out.close();
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
public String getServletInfo() {
return "dateTimeServlet";
}
}

Output:


Jsp


servletoutput



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