<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Wishing message</title>
</head>
<body>
<a href = "http://localhost:2020/WishSrvApp/test">Get wishing</a>
</body>
</html>
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class WishApp extends HttpServlet
{
public void service(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException
{
//set response content type
res.setContentType("text/html");
//get printWrite obj
PrintWriter pw = res.getWriter();
//write request processing logic to generate wish message
Calendar cal = Calendar.getInstance();
//get current hours of the day
int hour = cal.get(Calendar.HOUR_OF_DAY);//24 hrs format
//generate wish message
if(hour<12)
pw.println("Good Morning!!");
else if (hour < 16)
pw.println("Good afternoon");
else if(hour<20)
pw.println("Good evening");
else
pw.println("Good night");
pw.println("<br><br><a href= '../WishSrvApp/index.html'>Home</a>");
//close stream object
pw.close();
}
}
<web-app>
<servlet>
<servlet-name>abc</servlet-name>
<servlet-class>WishApp</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>abc</servlet-name>
<url-pattern>/test</url-pattern>
</servlet-mapping>
</web-app>
