Jason Briggs has put together a great article on REST ( Representational State Transfer ) style application development using Jython and Velocity on Jetty. His goal is simpler servlet development that is more standards compliant. You don't need to use Gets and Posts only and he shows you how to do it all with Jython. He even includes as a resource in the article a jar file combining Velocity and the
JythonUperspect customizer to let velocity work with Jython objects.