logoutaction.java

一个实用工具类

/*
 * Copyright (C) butor.com. All rights reserved.
 *
 * This software is published under the terms of the GNU Library General
 * Public License (GNU LGPL), a copy of which has been included with this
 * distribution in the LICENSE.txt file. 
 */


package org.butor.web.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.RedirectingActionForward;
import org.butor.config.Config;
import org.butor.log.Log;
import org.butor.web.context.IWebContext;

public class LogoutAction extends ButorAction {

	protected ActionForward executeAction(ActionMapping mapping, IButorActionForm form) throws Exception {

		IWebContext context = (IWebContext)getContext();
		HttpServletRequest request = context.getRequest();
		HttpServletResponse response = context.getResponse();
		
		// Reset cookie with the appropriate Locale
		//resetLocale(request, response);
			
		HttpSession session = (HttpSession)request.getSession(false);
		session.invalidate();
		
		// if no logout url is defined in config, take / (web-app root) by default
		String logoutUrl = Config.getProperty(PROPERTY_LOGOUT_URL, request.getContextPath() + "/");

		Log.logStr(this, Log.LOG_TYPE_INFO, "executeAction", "Redirecting to : " + logoutUrl);
		
		return new RedirectingActionForward(logoutUrl);
	}

	/**
	 * 
	 */
	protected boolean hasAccessToApplication() {
		return true;
	}

}