LogoutAction

[Villegas, Courtney]

I am having troubles with the logout action that I have written.  It directs
me to the correct page, but does not actually log the user out and close the
session.  I have attached my action and the info from my struts-config file.
I am calling session.invalidate() incorrectly?

Thanks
Courtney

        <!--************************************* Logoff Action
*************************************-->
        <action    path="/logoff"
                   type="org.trimet.security.actions.LogoffAction"
                   scope="request">
          <forward name="success"              path="/jsp/ctest.jsp"/>
        </action>

package org.trimet.security.actions;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Locale;
import java.util.Vector;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.util.MessageResources;
import org.apache.commons.beanutils.PropertyUtils;

import org.trimet.security.states.Constants;
import org.trimet.security.states.User;

/**
 * Implementation of <strong>Action</strong> that logs user out of current
session 
 *
 * @author Courtney S. Villegas
 * @version $Revision: 1.0 $ $Date: 2002/05/13 03:03:00 $
 */

public final class LogoffAction extends Action {


    // --------------------------------------------------------- Public
Methods


    /**
     * Process the specified HTTP request, and create the corresponding HTTP
     * response (or forward to another web component that will create it).
     * Return an <code>ActionForward</code> instance describing where and
how
     * control should be forwarded, or <code>null</code> if the response has
     * already been completed.
     *
     * @param mapping The ActionMapping used to select this instance
     * @param actionForm The optional ActionForm bean for this request (if
any)
     * @param request The HTTP request we are processing
     * @param response The HTTP response we are creating
     *
     * @exception IOException if an input/output error occurs
     * @exception ServletException if a servlet exception occurs
     */
    public ActionForward perform(ActionMapping mapping,
                                 ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response)
        throws IOException, ServletException {

        // Extract attributes we will need
        Locale locale = getLocale(request);
        MessageResources messages = getResources();
        HttpSession session = request.getSession();
        String action = request.getParameter("Load");
        if (action == null)
            action = "Load";
        if (servlet.getDebug() >= 1)
            servlet.log("LogoffAction:  Processing " + action +
                        " action");

        // Is there a currently logged on user?
        User user = (User) session.getAttribute(Constants.USER_KEY);
        if (user == null) {
            if (servlet.getDebug() >= 1)
                servlet.log(" User is not logged on in session "
                            + session.getId());
            return (servlet.findForward("logon"));
        }


        // Forward control to the GISAppDev page
        if (servlet.getDebug() >= 1)
            servlet.log(" Forwarding to 'GIS App Dev' page");
        user=null;
        session.invalidate();    
        return (mapping.findForward("success"));

    }


}

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