Hello:
Learning jsp (if you can call it like that) is not that hard. Once you've learned html and java, you should be ok. There are some considerations to notice, but they're mostly repetitive, so once you know the basic structure of a server page (like php, jsp, asp, etc.) ypu're ok to go.

There are lots of tutorials on the web, I'd recommend this one:

www.javapassion.com/j2ee/JSPBasics.pdf

Greetings....