Json的序列化和反序列化

1、引用命名空间:

using System.Runtime.Serialization;

2、json的序列化和反序列化的方法：

publicclass JsonHelper

 { 

///

/// 序列化

///

///

///

///

publicstaticstring JsonSerializer<T>(T t)

 { 

string jsonString =string.Empty;

 DataContractJsonSerializer ser =new DataContractJsonSerializer(typeof(T));

 MemoryStream ms =new MemoryStream();

 ser.WriteObject(ms, t);

 jsonString = Encoding.UTF8.GetString(ms.ToArray());

 ms.Close();

return jsonString;

 }

///

/// 反序列化

///

///

///

///

publicstatic T JsonDeserialize<T>(string jsonString)

 { 

 T obj =default(T);

 DataContractJsonSerializer ser=new DataContractJsonSerializer(typeof(T));

 MemoryStream ms =new MemoryStream(Encoding.UTF8.GetBytes(jsonString));

 obj = (T)ser.ReadObject(ms); 

return obj;

 }

 }

3、现在先准备一个Person类：

class Person

 { 

 [DataMemberAttribute]

publicstring Name { get; set; }

 [DataMemberAttribute]

publicint Age { get; set; }

 [DataMemberAttribute]

publicstring Gender { get; set; }

 }

4、现在就用JsonHelper方法把Person类的对象序列化成Json格式。

 Person p =new Person { Name ="张三", Age =12, Gender ="男" };

string str = JsonHelper.JsonSerializer<Person>(p);

 Console.WriteLine(str);

5、结果：

{ "Age":12,"Gender":"男","Name":"张三"}

6、再把Json格式反序列化为Person类型：

 p = JsonHelper.JsonDeserialize<Person>(str);

 Console.WriteLine("{0},{1},{2}",p.Name,p.Age,p.Gender);

7、结果：

张三,12,男