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startup class in websphere5.0

Posted on 2004-08-11
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Last Modified: 2012-06-27
HI,
I need to provide email, when the websphere app.server starts first time. I would appreciate if anybody send me class file and how to do settings on application server.

thanks,
-Nati
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Question by:prreddy
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2 Comments
 
LVL 9

Expert Comment

by:nimaig
ID: 11780519
If you have your web application then the easy way to do is it
-- Write a class say SendMailAtStartUp.java which has public method say sendMail() which uses java mail api to send mail
-- Write a servlet.and 'make instance of the above class' and 'call the sendmail method()' in the init() method.
-- Register your servlet in web.xml.

Doing this, when the servlet is loaded by the web container for the first time, init() method would be invoked and the mail would be sent.
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LVL 14

Accepted Solution

by:
boonleng earned 125 total points
ID: 11781280
Another way is to use add a ServletContextListener, this listener will execute when server startup and shutdown.

First extend the class ServletContextListener. example:

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

public class StartupServletContextListener implements ServletContextListener {
      
      /**
       * @see javax.servlet.ServletContextListener#contextInitialized(ServletContextEvent)
       */
      public void contextInitialized(ServletContextEvent arg0) {
        //put send mail function here.
      }

      /**
       * @see javax.servlet.ServletContextListener#contextDestroyed(ServletContextEvent)
       */
      public void contextDestroyed(ServletContextEvent arg0) {
      }
}


Then add the the listener class to the web.xml
<listener>
  <listener-class>com.something.StartupServletContextListener</listener-class>
</listener>
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