mabimal wrote : How can i make ejb read this file Are you asking how to configure EJB3 such that it uses your configuration file to connect to the database? If so, as far as I know, EJB3 looks up a datasource in JNDI. Therefore, all you have to do is create a service that reads your configuration file and creates a JNDI name for your datasource. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171089#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...