Custom JSP page

All,

     Where do I find documentation on creating a custom JSP page? 

     I am looking for a way to execute a trigger without editing/saving an item.   My first thought was to create a JSP page that could be accessed by a hyperlink in the web client that would call use the api to execute the trigger.  However, I am having issues getting a simple JSP page to create a session and execute a simple command.  I am looking for documentation on setting up the environment and how to maintain the session info for the user that called the JSP.

Thank you,

Paul Hartwig

Ingersoll-Rand