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);
    }


  }