Problem of finding the Context URL in WebApplication

[kishore routhu]

I am working with Web-Application (TestApp). In this application i used to implement the ServletContextListener(as ContextListener) and
contextInitialized(ServletContextEvent event) method contains the following code segment.

ServletContext servletContext = event.getServletContext();
// where event is ervletContextEventURL
String servletPath = servletContext.getContextPath()+"/MyServlet";
// MyServlet is URL of the Servlet
URL servletURL = sevletContext.getResource();

Here i am trying to get the complete URL of MyServlet ( expected servletURL = http://localhost:8080/TestApp/MyServlet) but it always returns '0'.
And servletContext.getContextPath() always returns /TestApp (expected http://localhost:8080/TestApp).

Anybody please suggest me that is there any way to find URL of context(http://localhost:8080/TestApp)
OR particular Servlet from ServletContext(http://localhost:8080/TestApp/MyServlet).

Using ApplicationServer : Jboss AS 7.1.1

[Prajakta Acharya]

Have you tried using getRealPath(String path) of ServletContext?

[kishore routhu]

Yes i tried with getRealPath("/MyServlet") but it returns as follows

/usr/java/jboss/jboss-as-7.1.1.Final/standalone/tmp/vfs/temp8e6f1bb35e6dff50/TestApp.war-bdc0e65482008d47/MyServlet

[Bear Bibeault]

You cannot get the URL of a servlet because that is controlled by the mappings in the web.xml, not their location in the file system.

[kishore routhu]

I need to get the context URL