This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
If you are just starting out, then JSF would seem the better choice. Personally, I think it is cleaner and more coherent than Struts, and being an "official" Sun standard, it will be around for a while.