Silverlight 使用DataContractJsonSerializer序列化与反序列化 Json

环境说明:Silverlight 5.1，.Net Framework  ​4.0

1.添加引用System.ServiceModel.Web.dll。

　　因为 System.Runtime.Serialization.Json.DataContractJsonSerializer 类的引用是在System.ServiceModel.Web.dll这个程序集中。

2.代码如下

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Documents;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Media.Animation;
 using System.Windows.Shapes;
 using System.IO;
 using System.Text;
 using System.Runtime.Serialization.Json;

 namespace SilverlightApplication2
 {
     public partial class MainPage : UserControl
     {
         public MainPage()
         {
             InitializeComponent();
         }

         private void button1_Click(object sender, RoutedEventArgs e)
         {
             //textBox1.Text = "test button";

             List<TestJson> list = new List<TestJson>(){
             new TestJson(){ Id=,Name="test1"},
             new TestJson(){ Id=,Name="test2"},
             new TestJson(){ Id=,Name="test3"},
             new TestJson(){ Id=,Name="test4"}
             };

             string json = JsonHelp.JsonSerializer<List<TestJson>>(list);
             MessageBox.Show(json);

             var result = JsonHelp.JsonDeSerializer<List<TestJson>>(json);
             var resultJson = result.FirstOrDefault();
             MessageBox.Show(string.Format("id={0},name={1}", resultJson.Id, resultJson.Name));
         }
     }

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

     public class JsonHelp
     {
         /// <summary>
         /// json序列化
         /// </summary>
         /// <typeparam name="T"></typeparam>
         /// <param name="t"></param>
         /// <returns></returns>
         public static string JsonSerializer<T>(T t) where T : class
         {
             DataContractJsonSerializer dcs = new DataContractJsonSerializer(typeof(T));
             using (MemoryStream ms = new MemoryStream())
             {
                 dcs.WriteObject(ms, t);
                 byte[] bs = ms.ToArray();
                 string jsonStr = Encoding.UTF8.GetString(bs, , bs.Length);
                 return jsonStr;
             }
         }

         /// <summary>
         /// json反序列化
         /// </summary>
         /// <typeparam name="T"></typeparam>
         /// <param name="jsonStr"></param>
         /// <returns></returns>
         public static T JsonDeSerializer<T>(string jsonStr) where T : class
         {
             DataContractJsonSerializer dcs = new DataContractJsonSerializer(typeof(T));
             using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonStr)))
             {
                 return dcs.ReadObject(ms) as T;
             }
         }
     }
 }

3.序列化结果

4.反序列化结果