c#操作json的两种方式

总结一下C#操作json的两种方式，都是将对象和json格式相转。

1.JavaScriptSerializer，继承自System.Web.Script.Serialization

private string Serializer<T>(T t)

        {

            JavaScriptSerializer json=new JavaScriptSerializer();

            return json.Serialize(t);

        }



private T DeSerialze<T>(string strJeson) {

            JavaScriptSerializer strJeson1 = new JavaScriptSerializer();

           return strJeson1.Deserialize<T>(strJeson);

        }

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2.DataContractJsonSerializer，继承自System.Runtime.Serialization.Json;

代码如下

/// <summary>

        /// create json data according to entity

        /// </summary>

        /// <typeparam name="T"></typeparam>

        /// <param name="t"></param>

        /// <returns></returns>

        public  static  string GetJsonSerializar<T>(T t)

        {

            var ser = new DataContractJsonSerializer(typeof(T));

            using (MemoryStream ms=new MemoryStream())

            {

                ser.WriteObject(ms,t);

                return Encoding.UTF8.GetString(ms.ToArray());

            }

        }

        /// <summary>

        /// parse json data accroding to json string data

        /// </summary>

        /// <typeparam name="T"></typeparam>

        /// <param name="jsonStr"></param>

        /// <returns></returns>

        public static T ParseFromJson<T>(string jsonStr)

        {

            //T obj = Activator.CreateInstance<T>();

            //using (MemoryStream ms=new MemoryStream(Encoding.UTF8.GetBytes(jsonStr)))

            //{

            //    DataContractJsonSerializer jsonSerializer=new DataContractJsonSerializer(obj.GetType());

            //    return (T) jsonSerializer.ReadObject(ms);

            //}

            var ser = new DataContractJsonSerializer(typeof(T));

            var ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonStr));

            var obj = (T)ser.ReadObject(ms);

            return obj; 

        }

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但是json在客户端和浏览器传递之间时，如果传递的是实体类的json格式数据，则这类实体类应该用协议去定义，例如：

[DataContract]

    public class MsgEntity

    {

        [DataMember(Order = 0,IsRequired = true)]

        public string Msg { get; set; }



        [DataMember(Order = 1, IsRequired = false)]

        public string HtmlMsg { get; set; }

    }

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