JSON序列化与反序列化

DataContractJsonSerializer在System.Runtime.Serialization.Json命名空间下，.NET Framework 3.5包含在System.ServiceModel.Web.dll中，需要添加对其的引用；.NET Framework 4在System.Runtime.Serialization中。

1.创建 JsonHelper类

 1     //JSON序列化和反序列化辅助类
 2     public class JsonHelper
 3     {
 4         // JSON序列化
 5         public static string JsonSerializer<T>(T t)
 6         {
 7             DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
 8             MemoryStream ms = new MemoryStream();
 9             ser.WriteObject(ms, t);
10             string jsonString = Encoding.UTF8.GetString(ms.ToArray());
11             ms.Close();
12             return jsonString;
13         }
14 
15         //JSON反序列化
16         public static T JsonDeserialize<T>(string jsonString)
17         {
18             DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
19             MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
20             T obj = (T)ser.ReadObject(ms);
21             return obj;
22         }
23 
24     }

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