C# 使用JSON对数据序列化和反序列化.

public static class JsonHelper    {        /// <summary>        /// JSON序列化        /// </summary>        public static string JsonSerializer<T>(T t)        {            //so            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));            MemoryStream ms = new MemoryStream();            ser.WriteObject(ms, t);            string jsonString = Encoding.UTF8.GetString(ms.ToArray());            ms.Close();            //替换Json的Date字符串            const string p = @"\\/Date\((\d+)\+\d+\)\\/";            MatchEvaluator matchEvaluator = ConvertJsonDateToDateString;            Regex reg = new Regex(p);            jsonString = reg.Replace(jsonString, matchEvaluator);            return jsonString;        }        /// <summary>        /// 从一个对象信息生成Json串        /// </summary>        /// <param name="obj">转换对象</param>        /// <typeparam name="T">对象类型</typeparam>        /// <returns></returns>        public static string ToJson<T>(this T obj)        {            var fullName = typeof (T).FullName;            if (fullName != null && fullName.Contains("<>f__AnonymousType"))            {                //匿名类型                var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();                return serializer.Serialize(obj);            }            else            {                var serializer = new DataContractJsonSerializer(typeof(T));                string json;                using (MemoryStream stream = new MemoryStream())                {                    serializer.WriteObject(stream, obj);                    json = Encoding.UTF8.GetString(stream.ToArray());                    stream.Close();                }                return json;            }        }        /// <summary>        /// JSON反序列化        /// </summary>        public static T JsonDeserialize<T>(string jsonString)        {            //将"yyyy-MM-dd HH:mm:ss"格式的字符串转为"\/Date(1294499956278+0800)\/"格式            const string p = @"\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}";            MatchEvaluator matchEvaluator = ConvertDateStringToJsonDate;            Regex reg = new Regex(p);            jsonString = reg.Replace(jsonString, matchEvaluator);            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));            MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));            T obj = (T)ser.ReadObject(ms);            return obj;        }        /// <summary>        /// 将Json序列化的时间由/Date(1294499956278+0800)转为字符串        /// </summary>        private static string ConvertJsonDateToDateString(Match m)        {            DateTime dt = new DateTime(1970, 1, 1);            dt = dt.AddMilliseconds(long.Parse(m.Groups[1].Value));            dt = dt.ToLocalTime();            string result = dt.ToString("yyyy-MM-dd HH:mm:ss");            return result;        }        /// <summary>        /// 将时间字符串转为Json时间        /// </summary>        private static string ConvertDateStringToJsonDate(Match m)        {            DateTime dt = DateTime.Parse(m.Groups[0].Value);            dt = dt.ToUniversalTime();            TimeSpan ts = dt - DateTime.Parse("1970-01-01");            string result = string.Format("\\/Date({0}+0800)\\/", ts.TotalMilliseconds);            return result;        }    }