In struts, if any changes are made to before the request reaches to actionservlet, where you do the changes?

In struts the first to recieve the request is Actionservlet. So, there is no chance for you to make changes before:Functionality of Action Servlet can be changed by making use of " RequestProcessor" class.:Request can be manipulated in RequestPreProcessor before reaching to ActionServlet. This class is responsible to populate the request values to ActionForm bean.
Category:Struts Interview Questions