转换json格式

    public class JsonHelper
    {
        #region 生成json格式数据
        public static string GetJson<T>(T obj)
        {
            string szJson = string.Empty;
            DataContractJsonSerializer json = new DataContractJsonSerializer(obj.GetType());
            using (MemoryStream stream = new MemoryStream())
            {
                json.WriteObject(stream, obj);
                szJson = Encoding.UTF8.GetString(stream.ToArray());
            }
            return szJson;
        }
        #endregion

        #region 解析json格式数据
        public static T ParseFromJson<T>(string szJson)
        {
            T obj = Activator.CreateInstance<T>();
            using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
                return (T)serializer.ReadObject(stream);
            }
        }
        #endregion
    }