URLEncoding

[Softwareentwicklung Hauschel]

Hy all,
in my perform Metod i use -> return mapping.findForward( "success" );

struts-config.xml ->

   <action
       path="/decWeek" 
       type="de.hauschel.calendar.actions.DecWeek"
       name="WeekForm"
       scope="session"
       input="/prot/week.jsp">
       <forward name="success" path="/prot/week.jsp"/>
     </action>


But if cookies are disabled, the i loose my session !!!

How can i do URLEncoding ????
Fredy