<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
 Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

   http:--www.apache.org/licenses/LICENSE-2.0    

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<web-app xmlns:xsi="http:--www.w3.org/2001/XMLSchema-instance" xmlns="http:--java.sun.com/xml/ns/javaee" xmlns:web="http:--java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http:--java.sun.com/xml/ns/javaee http:--java.sun.com/xml/ns/javaee/web-app_3_0.xsd" metadata-complete="true" version="3.0">
  <servlet>
    <servlet-name>Tester</servlet-name>
    <servlet-class>com.example.ListenerTester</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Tester</servlet-name>
    <url-pattern>/InvokingTest.do</url-pattern>
  </servlet-mapping>
  <context-param>
    <param-name>breed</param-name>
    <param-value>Great Dane</param-value>
  </context-param>
  <listener>
    <listener-class>com.example.MyServletContextListener</listener-class>
  </listener>
</web-app>

package com.example;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class ListenerTester extends HttpServlet {
	
	public void doGet(HttpServletRequest request,
			          HttpServletResponse response) 
	throws IOException, ServletException {
		
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out.println("This is my second attempt<br>");
		
		out.println("<br>");
		
		Dog dog = (Dog)this.getServletContext().getAttribute("dog");
		
		out.println("The Dog's breed is" + dog.getBreed());
		
	}
}

package com.example;

public class Dog {
	
	private String breed;
	
	public Dog(String breed) {
		this.breed = breed;
	}
	
	public String getBreed() {
		return breed;
	}

}

package com.example;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;

/**
 * Application Lifecycle Listener implementation class MyServletContextListener
 *
 */
@WebListener
public class MyServletContextListener implements ServletContextListener {

    /**
     * Default constructor. 
     */
    public MyServletContextListener() {
        // TODO Auto-generated constructor stub
    }

    /**
     * @see ServletContextListener#contextInitialized(ServletContextEvent)
     */
    public void contextInitialized(ServletContextEvent event) {
        ServletContext sc = event.getServletContext();
        String dogBreed = sc.getInitParameter("breed");
        Dog d = new Dog(dogBreed);
        sc.setAttribute("dog", d);
    }

    /**
     * @see ServletContextListener#contextDestroyed(ServletContextEvent)
     */
    public void contextDestroyed(ServletContextEvent arg0) {
        // TODO Auto-generated method stub
    }
	
}