A brief analysis of JSON serialization and deserialization

Method 1: Introduce the System.Web.Script.Serialization namespace and use the JavaScriptSerializer class to implement simple serialization. Serialization class: Personnel

    public class Personnel
        {
            public int Id { get; set; }
            public string Name { get; set; }
        }

Perform serialization and deserialization:

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 output result: {"Id":1,"Name":"小白"}
You can use the ScriptIgnore attribute to mark public properties or public fields not to be serialized.

        public class Personnel
        {
            [ScriptIgnore]
            public int Id { get; set; }
            public string Name { get; set; }
        }

r1 Output result: {"Name":"小白"}

Method 2: Introduce the System.Runtime.Serialization.Json namespace and use the DataContractJsonSerializer class to implement serialization

Serialization class: People

        public class People
        {
            public int Id { get; set; }
            public string Name { get; set; }
        }

Perform serialization and deserialization

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 output result: {"Id":1,"Name":"小白"}

You can use IgnoreDataMember: to specify that the member is not part of the data contract and is not serialized. DataMember: defines the serialization attribute parameters. Use the DataMember attribute to mark fields. You must use DataContract to mark the class otherwise DataMember Tags don't work.

[DataContract]
        public class People
        {
            [DataMember(Name = "id")]
            public int Id { get; set; }
            [IgnoreDataMember]
            public string Name { get; set; }
        }

Output result: {"id":1}

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