// 修改订购合同
 @RequestMapping(value = "/edit.json", method = RequestMethod.POST)
 @ResponseBody
 private Object editPurchaseOrder(String purchaseOrder, String data) {
   JSONObject purchase = JSONObject.fromObject(purchaseOrder);
   PurchaseOrder order = (PurchaseOrder) JSONObject.toBean(purchase, PurchaseOrder.class);
   JSONArray array = JSONArray.fromObject(data);
   List<PurchaseOrderDetail> list = new ArrayList<PurchaseOrderDetail>();
   for (int i = 0; i < array.toArray().length; i++) { // 遍历循环,去除最后一项统计栏的信息
     JSONObject json = JSONObject.fromObject(array.toArray()[i]);
     PurchaseOrderDetail resourceBean =
         (PurchaseOrderDetail) JSONObject.toBean(json, PurchaseOrderDetail.class);
     if (resourceBean.getGoodsCode().equals("<b>统计:</b>") == false) {
       list.add(resourceBean);
     }
   }
   return purchaseOrderService.editPurchaseOrder(order, list);
 }