ServletContextListener doubt

[vinal sen]

I have been trying to set attributes,using the context parameter and ServletContextListener interfaces.

When I try to test the program (after setting the attributes),the attribute value is null(It does not throw null pointer exception).I had given the context param name

what could be the reason?could someone please help me?

 web.xml
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<servlet>
<servlet-name>pp</servlet-name>
<servlet-class> com.example.listenertester</servlet-class>
</servlet>
 
<servlet-mapping>
<servlet-name> pp </servlet-name>
<url-pattern>/test.do</url-pattern>
</servlet-mapping>
 
<context-param>
<param-name>ddd</param-name>
<param-value>great dane</param-value>
</context-param>
 
<listener>
<listener-class> com.example.mylistener</listener-class>
</listener>
 
</web-app>
 
---------
 
package com.example;
 
 
 
import javax.servlet.*;
 
public class mylistener implements ServletContextListener
{
public void contextInitialized(ServletContextEvent event)
{
ServletContext sc=event.getServletContext();
String dogbreed=sc.getInitParameter("breed");
Dog d=new Dog(dogbreed);
sc.setAttribute("ddd",d);
}
 
public void contextDestroyed(ServletContextEvent event)
{}
}
-----------
 
package com.example;
 
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
 
public class listenertester extends HttpServlet
{
public void doGet(HttpServletRequest req,HttpServletResponse res) throws IOException,ServletException
{
res.setContentType("text/html");
PrintWriter pw=res.getWriter();
pw.println("testing context attributes set by listener <br>");
pw.println("<br>");
Dog dog=(Dog)getServletContext().getAttribute("ddd");
pw.println("dog's breed is" + dog.getBreed());
}
}
 
 
    

[ October 16, 2008: Message edited by: Bear Bibeault ]

[vinal sen]

Sorry Guys! I found out that I had failed to make a context param-name breed(instead it was ddd) thank you.

Moderators: could you please close the topic.thank you.