//Created by MyEclipse Struts// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_3.8.4/xslt/JavaClass.xslpackage com.sonic.struts.action;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;/**  * MyEclipse Struts * Creation date: 05-03-2005 *  * XDoclet definition: * @struts:action validate="true" */public class LogoffAction extends Action {	// --------------------------------------------------------- Instance Variables	// --------------------------------------------------------- Methods	/** 	 * Method execute	 * @param mapping	 * @param form	 * @param request	 * @param response	 * @return ActionForward	 */	public ActionForward execute(		ActionMapping mapping,		ActionForm form,		HttpServletRequest request,		HttpServletResponse response) {		HttpSession session = request.getSession();		session.setAttribute("userName",null);  //加入，清除Session		return (new ActionForward("/index.jsp"));	}}