C#实现JSON序列化与反序列化介绍

方法一：引入System.Web.Script.Serialization命名空间使用 JavaScriptSerializer类实现简单的序列化

序列化类：Personnel

        public class Personnel

        {

            public int Id { get; set; }

            public string Name { get; set; }

        }

执行序列化反序列化：

        protected void Page_Load(object sender, EventArgs e)

        {

            Personnel personnel = new Personnel();

            personnel.Id = 1;

            personnel.Name = "小白";





            JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();

            //执行序列化

            string r1 = jsonSerializer.Serialize(personnel);

            

            //执行反序列化

            Personnel _Personnel = jsonSerializer.Deserialize<Personnel>(r1);

         }

r1输出结果：{"Id":1,"Name":"小白"}

可以使用 ScriptIgnore属性标记不序列化公共属性或公共字段。

        public class Personnel

        {

            [ScriptIgnore]

            public int Id { get; set; }

            public string Name { get; set; }

        }

r1输出结果：{"Name":"小白"}

方法二：引入 System.Runtime.Serialization.Json命名空间使用 DataContractJsonSerializer类实现序列化

序列化类：People

        public class People

        {

            public int Id { get; set; }

            public string Name { get; set; }

        }

执行序列化反序列化

        protected void Page_Load(object sender, EventArgs e)

        {

            People people = new People();

            people.Id = 1;

            people.Name = "小白";





            DataContractJsonSerializer json = new DataContractJsonSerializer(people.GetType());

            string szJson = "";

            //序列化

            using (MemoryStream stream = new MemoryStream())

            {

                json.WriteObject(stream, people);

                szJson = Encoding.UTF8.GetString(stream.ToArray());

            }

            //反序列化

            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))

            {

                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(People));

                People _people = (People)serializer.ReadObject(ms);

            }

         }

szJson输出结果：{"Id":1,"Name":"小白"}

可以使用IgnoreDataMember:指定该成员不是数据协定的一部分且没有进行序列化，DataMember:定义序列化属性参数，使用DataMember属性标记字段必须使用DataContract标记类 否则DataMember标记不起作用。

        [DataContract]

        public class People

        {

            [DataMember(Name = "id")]

            public int Id { get; set; }

            [IgnoreDataMember]

            public string Name { get; set; }

        }

输出结果: {"id":1}