3. 如何封装查询条件与查询结果到map中

     public Map<String, Object> queryOrderStatus(String orderNo) { // 查询到的结果与查询的条件一一对应，封装到map中！
         String[] fields = {
                 "salesman", "no", "status", "VATInvoiceNo", "courier", "tracking", "forAR", "mark"
                 , "dunning_courier", "dunning_tracking"
         };
         Query query = entityManager.createNativeQuery("select " + StringUtils.join(fields, ",") +
                 "\n from selleck.selleck_order o" +
                 "\n left join selleck.selleck_order_extended e on e.orderId=o.id" +
                 "\n where no=:orderNo"
         );
         query.setParameter("orderNo", orderNo);
         List<Object[]> list = query.getResultList();
         if (list.isEmpty()) {
             return new HashMap<>();
         } else {
             Object[] values = list.get(0);
             Map<String, Object> valueMap = new HashMap<>();
             for (int i = 0; i < fields.length; i++) {
                 valueMap.put(fields[i], values[i]);
             }
             return valueMap;
         }
     }