logoutaction.java

采用Eclispe开发平台

package com.whatratimes.edu.webedu;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

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 com.whatratimes.tables.t_user;

public class LogoutAction extends Action
{
    public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception
    {
        HttpSession session = httpServletRequest.getSession();
        t_user user = (t_user) session.getAttribute("User");

        if (user != null)
        {
            SessionControl.loginedUsers.remove(new Integer(user.UserId));

            System.out.println("Session logout : " + user.UserId);
        } else
        {
            System.out.println("Invalid session logout. ");

        }

        session.invalidate();

        return actionMapping.findForward("success");
    }
}