What is the term? A redirect at the server level...

What is it called when I want to change where a page request goes, but it's within the same host? I want to do it at the server level and I don't know what to search on. I don't want my users to have to use tiny url.

Example:
I want this request: http://mydomain.com/page.jsp to resolve to: http://mydomain.com/onedir/twodir/page.jsp?param=1¶m=2¶rm=3

Thanks!

rewrite, as in mod_rewrite

Thanks. I have looked around and am I understanding it right that Apache can rewrite URLs, but Tomcat alone cannot? We are not using Apache.