C#通用Json格式序列化和反序列化的方法

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}

 

进行简单封装一下

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);
            }
        }
    }
}