@RequestMapping("/ajax/priceTrackingApi.do")
 @ResponseBody
 public void loadOrdersList(CommonParmVO commonParmVO, HttpServletRequest request)
     throws Exception {
   PageJsonBean jsonBean = commonParmVO.getJsonBean();
   String qeuryContent = request.getParameter("qeuryContent");
   List<TradingPriceTracking> priceTrackings = new ArrayList<TradingPriceTracking>();
   try {
     priceTrackings = iTradingPriceTracking.getPriceTrackingItem(qeuryContent);
   } catch (Exception e) {
     logger.error("", e);
     priceTrackings = new ArrayList<TradingPriceTracking>();
   }
   jsonBean.setList(priceTrackings);
   jsonBean.setTotal(priceTrackings.size());
   AjaxSupport.sendSuccessText("", jsonBean);
 }