public class Myclock extends HttpServlet{
    public void doGet(HttpServletRequest request,HttpServletResponse response)
    throws IOException,ServletException{
            
               String fun = request.getParameter("fun"); 
               ServletContext application=getServletContext();
               request.setAttribute("fun", fun);
               Date date=null;
               DateFormat df=new SimpleDateFormat("yyyyMMddHHmmss");
               String str="2012509161000";
               try {
                date=df.parse(str);
            } catch (ParseException e) {
                // TODO Auto-generated catch block
            e.printStackTrace();
            }
            if(fun.equals("1")){               //fun是前台JSP传递过来的值，用于判断是否是手动开启timer或关闭
              Timer timer=new Timer();
             
             [color=#FF0000] timer.schedule(new MyTask(),date,5*60*1000L);[/color]

              application.setAttribute("timer",timer);
             
                       request.getRequestDispatcher("/jsp/administer/delData.jsp").forward(request,response) ;
             }else{
              Timer timer = (Timer)application.getAttribute("timer");
            
              timer.cancel();
              application.setAttribute("timer", null);
             
              request.getRequestDispatcher("/jsp/administer/delData.jsp").forward(request,response) ;
             
             }
        }
    public void doPost(HttpServletRequest request,HttpServletResponse response)
    throws IOException,ServletException{
        doGet(request,response);
    }
    }

public void run() {
        a++;
        System.out.println("***********************a==="+a+"**************************************");
        GetdateFormat time1 = new GetdateFormat();
        Timestamp time_now = time1.getDatetime();
        System.out.println("现在时间是："+time_now+"============");
        Long oneday = 24*60*60*1000L;
        Timestamp time = new Timestamp(time_now.getTime()-oneday);
        
        List <FeedData> feedData = feedDataDao.getAllFeedDaoBeforeTime(time);
        int amount=feedData.size();
        if(amount!=0){
            for(int i=0;i<amount+1;i++){
                ;
                feedDataDao.delete(feedData.get(i));
                
                amount--;
                System.out.println("amount===="+amount);
                
                FeedData temp = feedData.get(i);
                
                
                //将删除的数据存入del_data_bck表中
                DelDataBackup del_data = new DelDataBackup();
                del_data.setFeedDatastream(temp.getFeedDatastream());
                del_data.setCvfdsdata_bck(temp.getCvfdsdata());
                del_data.setCddsdatatime_bck(temp.getCddsdatatime());
                System.out.println("del_data====="+del_data);
                delDataB