public class JsonHelper    {        #region 对象类型序列化为json 字符        /// <summary>        /// 对象类型序列化为json 字符        /// </summary>        /// <typeparam name="T">实体类型</typeparam>        /// <param name="jsonObject">待转换实体</param>        /// <param name="encoding">编码格式</param>        /// <returns>string</returns>        public static string ObjectToJson<T>(Object jsonObject, Encoding encoding)        {            string result = String.Empty;            DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));            using (System.IO.MemoryStream ms = new System.IO.MemoryStream())            {                serializer.WriteObject(ms, jsonObject);                result = encoding.GetString(ms.ToArray());            }            return result;        }        #endregion        #region json字符反序列化为对象        /// <summary>        /// json字符反序列化为对象        /// </summary>        /// <typeparam name="T">实体类型</typeparam>        /// <param name="json">json字符串</param>        /// <param name="encoding">编码格式</param>        /// <returns>T</returns>        public static T JsonToObject<T>(string json, Encoding encoding)        {            T resultObject = default(T);            try            {                resultObject = Activator.CreateInstance<T>();                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));                using (System.IO.MemoryStream ms = new System.IO.MemoryStream(encoding.GetBytes(json)))                {                    resultObject = (T)serializer.ReadObject(ms);                }            }            catch { }            return resultObject;        }        #endregion    }