Servlet + Jsp Hello World Example

 
In our previous tutorial we got introduced to what a JSP is, In this article we are going to cover how to write Hello world example using both Servlet and Jsp.
 

Final Project Structure

Servlet

package com.servlet;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloWorldServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		RequestDispatcher rd = request.getRequestDispatcher("hello.jsp");
		rd.forward(request, response);
	}
}

web.xml

 
Make sure that your web.xml file has following mapping

	HelloWorldServlet
	
		HelloWorld
		com.servlet.HelloWorldServlet
	
	
		HelloWorld
		/helloworld
	

JSP Page

	
Hurray!! This Servlet worked!!!

Demo

Deploy the application tomcat server and enter the URL to access HelloWorldServlet “http://localhost:8089/HelloWorldServlet/helloworld”