I think the better way would be to use a URL Rewrite handler, there you can mention a Regex or the specific URLs From and To.
If you are using Apache in front of your
Tomcat server, You can achieve this either by having mod_rewrite module configured for you or if the number of URLs are much lesser then you can use mod_proxy module to forward the URLs to correct address.
You can checkout this
http://param-techie.blogspot.com/2010/03/setting-up-url-rewrite-module-on-apache.html for more information on how to set up mod_rewrite module for your Apache server.