logoutaction.java

《j2ee开发全程实录》随书源码

package com.cownew.PIS.framework.web;

import javax.servlet.http.HttpServletRequest;
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 com.cownew.PIS.framework.common.services.ILoginService;
import com.cownew.PIS.framework.web.helper.WebContextHelper;
import com.cownew.PIS.framework.web.helper.WebEndServiceLocator;

public class LogoutAction extends Action
{

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception
	{
		String sessionid = WebContextHelper.getSessionId(request);
		ILoginService loginService = (ILoginService) WebEndServiceLocator
				.getService(request, ILoginService.class);
		loginService.logout(sessionid);
		request.getSession().invalidate();
		return mapping.findForward("loginPage");
	}

}