Analysis of serialization and deserialization operations of JSON data in .NET-C#.Net Tutorial-php.cn

Analysis of serialization and deserialization operations of JSON data in .NET

黄舟

Release： 2017-03-10 13:47:58

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You can use the DataContractJsonSerializer class to serialize type instances into JSON strings and deserialize JSON strings into type instances. DataContractJsonSerializer is in the System.Runtime.Serialization.Json namespace

, .NET Framework 3.5 is included in System.ServiceModel.Web.dll, and a reference to it needs to be added; .NET Framework 4 is in System.Runtime. Serialization.

Using DataContractJsonSerializer serialization and deserialization code:

　1: using System;
　　2: using System.Collections.Generic;
　　3: using System.Linq;
　　4: using System.Web;
　　5: using System.Runtime.Serialization.Json;
　　6: using System.IO;
　　7: using System.Text;
　　8:
　　9: /// <summary>
　　10: /// JSON序列化和反序列化辅助类
　　11: /// </summary>
　　12: public class JsonHelper
　　13: {
　　14:     /// <summary>
　　15:     /// JSON序列化
　　16:     /// </summary>
　　17:     public static string JsonSerializer<T>(T t)
　　18:     {
　　19:         DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
　　20:         MemoryStream ms = new MemoryStream();
　　21:         ser.WriteObject(ms, t);
　　22:         string jsonString = Encoding.UTF8.GetString(ms.ToArray());
　　23:         ms.Close();
　　24:         return jsonString;
　　25:     }
　　26:
　　27:     /// <summary>
　　28:     /// JSON反序列化
　　29:     /// </summary>
　　30:     public static T JsonDeserialize<T>(string jsonString)
　　31:     {
　　32:         DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
　　33:         MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
　　34:         T obj = (T)ser.ReadObject(ms);
　　35:         return obj;
　　36:     }
　　37: }

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Serialization Demo:

Simple object Person:

1: public class Person
　　2: {
　　3:     public string Name { get; set; }
　　4:     public int Age { get; set; }
　　5: }

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Serialization to JSON string:

　1: protected void Page_Load(object sender, EventArgs e)
　　2: {
　　3:     Person p = new Person();
　　4:     p.Name = "张三";
　　5:     p.Age = 28;
　　6:
　　7:     string jsonString = JsonHelper.JsonSerializer<Person>(p);
　　8:     Response.Write(jsonString);
　　9: }

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Output result:

　{"Age":28,"Name":"张三"}

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Deserialization Demo:

　1: protected void Page_Load(object sender, EventArgs e)
　　2: {
　　3:     string jsonString = "{\"Age\":28,\"Name\":\"张三\"}";
　　4:     Person p = JsonHelper.JsonDeserialize<Person>(jsonString);
　　5: }

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JSON sequence in ASP.NET You can also use JavaScriptSerializer for deserialization and deserialization. In the System.Web.Script.Serializatioin namespace, you need to reference System.Web.Extensions.dll. You can also use JSON.NET.

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