This document is to provide a sample application of configuration mentioned in the below link
http://docs.oracle.com/cd/E15051_01/wls/docs103/jdbc_admin/packagedjdbc.html
Customers could create JDBC connections by creating a JDBC module and deploy it part of an EAR application. Which in turn inherit all the deployment specific properties..meaning you can attach a deployment plan and edit the environmental specific details username/password such that..when you move the application across different environments.
Below is a sample implementation of JDBC module deployment part of an EAR. The EAR has a WAR which in fact uses the same JDBC..please edit JDBC connection specific properties..feel free to ask any questions if you have.
sasikumarchellappan 