C# json序列化反序列化 C#实现的json序列化和反序列化代码实例

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);
    }


  }