My First Spring Listener

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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_2_5.xsd"
 id="WebApp_ID" version="2.5">
 <display-name>testWebApp</display-name>

 <listener>
    <listener-class>com.test.MyFirstListener</listener-class>
 </listener>
 <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/testWebApp.xml</param-value>
 </context-param>
</web-app>

package com.test;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;

import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.WebApplicationContext;

public class MyFirstListener extends ContextLoaderListener
{
    private static ServletContext servletContext;

    @Override
    public void contextInitialized(ServletContextEvent event)
    {
        System.out.println("MyFirstListener.contextInitialized(...)");

        final ServletContext servletContext = event.getServletContext();

        MyFirstListener.servletContext = servletContext;
        super.contextInitialized(event);
        WebApplicationContext springContext = null;

        try
        {
            springContext = (WebApplicationContext) servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);

        } catch (RuntimeException ex)
        {
            String msg = "Problem getting Spring context: " + ex.getMessage();
            throw ex;
        }
        
        try
        {
            MyFirstSpringClass objMyFirstSpringClass = (MyFirstSpringClass)springContext.getBean("MyFirstSpringClass");
            System.out.println(objMyFirstSpringClass.SayHello("koma"));
            
        } catch (Exception e)
        {
            System.out.println(e.toString());
        }
    }
}

MyFirstSpringClass.java

package com.test;

public class MyFirstSpringClass
{

    public String SayHello(String name)
    {
        return "helo" + name;
    }
    
    /**
     * Factory Method Test
     * @return
     */
    public static synchronized String getResourceConfig()
    {
        return "mystring";
    }
}