I have written a very simple shopcart application using Struts and Hibernate. I looked quite a bit for a decent tutorial and example but found nothing, so I put this together. For anyone else wondering how to integrate Hibernate and Struts, here is an example:

http://www.simplecart.org

The source is available under a BSD license. THIS IS NOT PRODUCTION QUALITY SOFTWARE. It is simply for learning, which is why I did it. Hopefully it is useful to someone more than me!