I spent years fighting with mod_jk and hated it. I've setup the mod_jk connector at least 20 times and it is just as hard every single time.
And so when I learned how to use mod_rewrite to do what I needed, I was very happy. And I also figured out that there are much better app servers than Tomcat and I can use mod_rewrite with any app server I like.
Here is one article about mod_rewrite, but I know there are probably easier tutorials: