anonymous wrote : do I have to make any changes in any files Do you mean beyond the web.xml and jboss-web.xml settings given in the link I posted earlier? And are you asking just about database access or about something else? Are you using EJB3 entity beans? If so, the persistence.xml file should reference the JNDI name of the datasource (not the ENC name). anonymous wrote : after placing EAR ...can I check directly for the screens to come up with URL.? Is there a WAR in your EAR? If so, yes. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4252445#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...