JsonHelper

#region model<->json(对象和json互转)
        #region DataContractJsonSerializer
        public static string SerializeDataContractJson<T>(T obj)
        {
            DataContractJsonSerializer json = new DataContractJsonSerializer(obj.GetType());
            using (MemoryStream stream = new MemoryStream())
            {
                json.WriteObject(stream, obj);
                string szJson = Encoding.UTF8.GetString(stream.ToArray());
                return szJson;
            }
        }
        public static T DeserializeDataContractJson<T>(string szJson)
        {
            T obj = Activator.CreateInstance<T>();
            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
                return (T)serializer.ReadObject(ms);
            }
        }
        #endregion

        #region Newtonsoft
        static public string SerializeJSON<T>(T data)
        {
            return Newtonsoft.Json.JsonConvert.SerializeObject(data);
        }
        static public T DeserializeJSON<T>(string json)
        {
            return Newtonsoft.Json.JsonConvert.DeserializeObject<T>(json);
        }
        #endregion
        #endregion

        #region datatable<->json（datatable和json互转）
        public static string SerializeDataTableToJSON(DataTable dt)
        {
            return Newtonsoft.Json.JsonConvert.SerializeObject(dt);
        }
        public static DataTable SerializeJSONToDataTable(string json)
        {
            return Newtonsoft.Json.JsonConvert.DeserializeObject<DataTable>(json);
        }
       
        #endregion