pass value to action.do struts

[munish]

<bean:define id="dVar" type="java.lang.String"> <%=uname%> </bean:define>
<td><struts:link page="/mdpaction.do?pageID=${dVar}" >Delete</struts:link></td>

i am using this code for transfer the value of uname to mdpaction.do but error is coming: The requested resource (Invalid path was requested) is not available.

and in mdpaction i am getting this value by

String uname=request.getParameter("pageID");
           if(uname!=null){
               g.update("delete from login where userid="+uname);
               return mapping.findForward("Wtrue");
           }

[r035198x]

That means that the action wasn't found. Make sure you have correctly configured it in the config files.