package com.david.struts.action;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 * 該基類action用于公共權(quán)限過濾，非登陸用戶無法通過
 * @author Administrator
 *
 */
public class FilterRequestAction extends BaseAction {

	@Override
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		HttpSession session=request.getSession();
		if(session.getAttribute("USERINFO")==null){
			response.getWriter().print("error!you must login at first!");
			return null;
		}else{
			return doExecute(mapping,form,request,response);
		}
	}
	/**
	 * 實(shí)際執(zhí)行的操作方法 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward doExecute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		return doExecute(mapping,form,request,response);
	}

}