If you are developing an app that replies on pure JDBC as it’s data access mechanism, consider looking at the JDBC support in the Spring Framework to help you out.
The Spring JDBC support greatly simlifies JDBC development by introducing a template based approach which encapsulates the majority of the coding you normally have to do by hand with JDBC. For examples and a comparision between raw JDBC and the Spring approach, look at this article on the java.net site.