C#实现JSON序列化与反序列化介绍

方法一：引入System.Web.Script.Serialization命名空间使用 JavaScriptSerializer类实现简单的序列化

序列化类：Personnel

public class Personnel

{

public int Id { get; set; }

public string Name { get; set; }

}

执行序列化反序列化：

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输出结果：{"Id":1,"Name":"小白"}

可以使用 ScriptIgnore属性标记不序列化公共属性或公共字段。

public class Personnel

{

[ScriptIgnore]

public int Id { get; set; }

public string Name { get; set; }

}

r1输出结果：{"Name":"小白"}

方法二：引入 System.Runtime.Serialization.Json命名空间使用 DataContractJsonSerializer类实现序列化

序列化类：People

public class People

{

public int Id { get; set; }

public string Name { get; set; }

}

执行序列化反序列化

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输出结果：{"Id":1,"Name":"小白"}

可以使用IgnoreDataMember:指定该成员不是数据协定的一部分且没有进行序列化，DataMember:定义序列化属性参数，使用DataMember属性标记字段必须使用DataContract标记类 否则DataMember标记不起作用。

[DataContract]

public class People

{

[DataMember(Name = "id")]

public int Id { get; set; }

[IgnoreDataMember]

public string Name { get; set; }

}

输出结果: {"id":1}