I think given the apparent relative simplicity of the application any sort of generic MVC solution would probably be major overkill - certainly a framework like Struts (2).
Not to mention it'll unnecessarily complicate the already fairly complex world of server-side Java - meaning Servlets and JSP in this case.
I'm certainly not against doing things "the right way", but in my opinion a firm grasps of the basics is priority 1.
I think the Servlet / JSP combination would probably work out just fine for you.
Seen as you're already familiar with core Java SE you could start by downloading a servlet container like Apache
Tomcat and playing around with it.
It does ship with some example applications and there are plenty of tutorials out there on using servlet technology - some good, some not so much.
Give that a try and if you run into problems, there's always our Servlets and JSP subforums
Or, of course, you could buy a book on the subject.