[asp.net]C#实现json的序列化和反序列化

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Web.Script.Serialization;
  4 using System.Configuration;
  5 using System.Runtime.Serialization.Json;
  6 using System.Runtime.Serialization;
  7 using System.IO;
  8 using System.Text;
  9 
 10 
 11 namespace WebApplication1
 12 {
 13 
 14     //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
 15     [Serializable]
 16     public class Person
 17     {
 18         
 19         private int id;
 20         /// <summary>
 21         /// id
 22         /// </summary>
 23         public int Id
 24         {
 25             get { return id; }
 26             set { id = value; }
 27         }
 28 
 29         private string name;
 30         /// <summary>
 31         /// 姓名
 32         /// </summary>
 33         public string Name
 34         {
 35             get { return name; }
 36             set { name = value; }
 37         }
 38     }
 39 
 40     //方法二：引入 System.Runtime.Serialization.Json命名空间使用 DataContractJsonSerializer类实现序列化
 41     //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。
 42     [DataContract]
 43     public class Person1
 44     {
 45         
 46         [IgnoreDataMember]
 47         public int Id { get; set; }
 48 
 49         [DataMember(Name = "name")]
 50         public string Name { get; set; }
 51         [DataMember(Name = "sex")]
 52         public string Sex { get; set; }
 53 
 54     }
 55 
 56     public partial class _Default : System.Web.UI.Page
 57     {
 58         string constr = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
 59         
 60         protected void Page_Load(object sender, EventArgs e)
 61         {
 62             
 63             Person p1 = new Person();
 64             p1.Id = 1;
 65             p1.Name = "dxw";
 66             Person p2 = new Person();
 67             p2.Id = 2;
 68             p2.Name = "wn";
 69 
 70             List<Person> listperson = new List<Person>();
 71             listperson.Add(p1);
 72             listperson.Add(p2);
 73 
 74             JavaScriptSerializer js = new JavaScriptSerializer();
 75             //json序列化
 76             string s = js.Serialize(listperson);
 77             Response.Write(s);
 78 
 79 
 80 
 81             //方法二
 82             Person1 p11 = new Person1();
 83             p11.Id = 1;
 84             p11.Name = "hello";
 85             p11.Sex = "男";
 86             DataContractJsonSerializer json = new DataContractJsonSerializer(p11.GetType());
 87 
 88             string szJson = "";
 89 
 90             //序列化
 91 
 92             using (MemoryStream stream = new MemoryStream())
 93 
 94             {
 95 
 96                 json.WriteObject(stream, p11);
 97 
 98                 szJson = Encoding.UTF8.GetString(stream.ToArray());
 99 
100                 Response.Write(szJson);
101             }
102 
103             //反序列化
104 
105             //using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
106 
107             //{
108 
109             //    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(People));
110 
111             //    Person1 _people = (Person1)serializer.ReadObject(ms);
112 
113             //}
114          }
115         
116 
117 
118         protected void Button1_Click(object sender, EventArgs e)
119         {
120             Response.Write(constr);
121         }
122 
123 
124     }