C#通用Json格式序列化和還原序列化的方法

引入 System.Runtime.Serialization.Json命名空間使用 DataContractJsonSerializer類實現序列化

序列化類別：People

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

執行序列化還原序列化

        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());
            }
//還原序列化
            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(People));
                People _people = (People)serializer.ReadObject(ms);
            }
         }

szJson輸出結果：{"Id":1,"Name":"小白"}

可以使用IgnoreDataMember:指定該成員不是資料合約的一部分且沒有進行序列化，DataMember:定義序列化屬性參數，使用DataMember屬性標記欄位必須使用DataContract標記類
否則DataMember標記不起作用。

        [DataContract]
public class People
        {
            [DataMember(Name = "id")]
public int Id { get; set; }
            [IgnoreDataMember]
public string Name { get; set; }
        }

輸出結果: {"id":1}

 

 

 

進行簡單封裝一下

 

using System.Text;
using System.Runtime.Serialization.Json;
using System.IO;

namespace RRQ.Common
{
    public static class JsonExtension
    {
        /// <summary>
        /// 序列化Json
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="target"></param>
        /// <returns></returns>
        public static string JsonSerialize<T>(this object target)
        {
            T result = (T)target;

            DataContractJsonSerializer json = new DataContractJsonSerializer(result.GetType());

            using (MemoryStream stream = new MemoryStream())
            {
                json.WriteObject(stream, result);
                return Encoding.UTF8.GetString(stream.ToArray());
            }
        }

        /// <summary>
        /// 返序列化Json
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="target"></param>
        /// <returns></returns>
        public static T JsonDeserialize<T>(this string target)
        {
            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(target)))
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
                return (T)serializer.ReadObject(ms);
            }
        }
    }
}