public void AllSupplyList(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            List <Supply> list       = supplyService.getAllSupplyList();
            StringBuilder jsonString = new StringBuilder();
            Dictionary <String, Object> dictionary = new Dictionary <string, object>();

            //jsonString.Append("\"supply\":");
            jsonString.Append("[");
            int i = 1;

            foreach (Supply supply in list)
            {
                dictionary.Add("Id", supply.Id);
                dictionary.Add("supplyName", supply.SupplyName);
                dictionary.Add("supplyDesc", supply.SupplyDesc);
                dictionary.Add("categoryId", supply.SupplyCategory.Id);
                dictionary.Add("priority", supply.Priority);
                dictionary.Add("userId", supply.User.Id);
                dictionary.Add("createTime", supply.CreateTime);
                dictionary.Add("modifyTime", supply.ModifyTime);
                dictionary.Add("supplyStatus", supply.SupplyStatus);
                dictionary.Add("success", "true");
                jsonString.Append(JsonUtil.toJson(dictionary));
                if (i < list.Count)
                {
                    jsonString.Append(",");
                }
                i++;
                dictionary.Clear();
            }
            jsonString.Append("]");
            context.Response.Write(jsonString.ToString());
        }