JSON序列化与反序列化

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

        publicclass Personnel
         {
            publicint Id {get; set; }
            publicstring Name {get; set; }
         }

执行序列化反序列化：

代码

        protectedvoid Page_Load(object sender, EventArgs e)
         {
             Personnel personnel = new Personnel();
             personnel.Id = 1;
             personnel.Name = "小白";


             JavaScriptSerializerjsonSerializer = 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。

        publicclass Personnel
         {
             [ScriptIgnore]
            publicint Id {get; set; }
            publicstring 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

        publicclass People
         {
            publicint Id {get; set; }
            publicstring Name {get; set; }
         }

执行序列化反序列化

代码

        protectedvoid Page_Load(object sender, EventArgs e)
         {
             People people = new People();
             people.Id = 1;
             people.Name = "小白";


             DataContractJsonSerializerjson = 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 =newMemoryStream(Encoding.UTF8.GetBytes(szJson)))
             {
                DataContractJsonSerializer serializer = newDataContractJsonSerializer(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。

代码

         [DataContract]
        publicclass People
         {
             [DataMember(Name = "id")]
            publicint Id {get; set; }
             [IgnoreDataMember]
            publicstring Name {get; set; }
         }

输出结果: {"id":1}