C# implements json serialization and deserialization example code

using System;
using System.Collections.Generic;
using System.Web.Script.Serialization;
using System.Configuration;
using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;
using System.IO;
using System.Text;

namespace WebApplication1
{
    //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
    [Serializable]
    public class Person
    {

        private int id;
        /// <summary>
        /// id
        /// </summary>
        public int Id
        {
            get { return id; }
            set { id = value; }
        }
        private string name;
        /// <summary>
        /// 姓名
        /// </summary>
        public string Name
        {
            get { return name; }
            set { name = value; }
        }
    }
    //方法二：引入 System.Runtime.Serialization.Json命名空间使用 DataContractJsonSerializer类实现序列化
    //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 Person1
    {

        [IgnoreDataMember]
        public int Id { get; set; }
        [DataMember(Name = "name")]
        public string Name { get; set; }
        [DataMember(Name = "sex")]
        public string Sex { get; set; }
    }
    public partial class _Default : System.Web.UI.Page
    {
        string constr = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;

        protected void Page_Load(object sender, EventArgs e)
        {

            Person p1 = new Person();
            p1.Id = 1;
            p1.Name = "dxw";
            Person p2 = new Person();
            p2.Id = 2;
            p2.Name = "wn";
            List<Person> listperson = new List<Person>();
            listperson.Add(p1);
            listperson.Add(p2);
            JavaScriptSerializer js = new JavaScriptSerializer();
            //json序列化
            string s = js.Serialize(listperson);
            Response.Write(s);
 
            //方法二
            Person1 p11 = new Person1();
            p11.Id = 1;
            p11.Name = "hello";
            p11.Sex = "男";
            DataContractJsonSerializer json = new DataContractJsonSerializer(p11.GetType());
            string szJson = "";
            //序列化
            using (MemoryStream stream = new MemoryStream())
            {
                json.WriteObject(stream, p11);
                szJson = Encoding.UTF8.GetString(stream.ToArray());
                Response.Write(szJson);
            }
            //反序列化
            //using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
            //{
            //    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(People));
            //    Person1 _people = (Person1)serializer.ReadObject(ms);
            //}
         }
       

        protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Write(constr);
        }

    }