public void orderTest() {
   Customer customer = customerDAO.getCustomerById(3);
   List<Commodity> commodityList = commoDAO.getCommoditiesByIdString("2;3;4");
   List<OrderCommodityRel> relationLsit = CommodityListTools.commoToRel(commodityList);
   Order order = new Order(customer, relationLsit, 100);
   Map<Integer, Integer> map = new HashMap<Integer, Integer>();
   map.put(2, 2);
   map.put(3, 4);
   map.put(4, 4);
   order.setBuyNum(map);
   Date date = new Date();
   order.setOrderTime(new Timestamp(date.getTime()));
   orderDAO.createOrder(order);
   System.out.println(order.getOrderId());
 }