A JSP is just a convenient way of generating a servlet, especially if the page you need to generate has a lot of HTML markup that would be inconvenient to generate from lots of print statements in a servlet.
One neat thing in JSP is the custom tag library. If your web pages must be generated by web designers who don't know or want to know any
Java, you may be able to set them up with a toolkit of custom tags so they won't have to bother the programmers for every little change.
Bill
<plug>Java Developer's Guide to Servlets and JSP
ISBN 0-7821-2809-2 </plug>