default.aspx.cs

Ajax+Json

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using Newtonsoft.Json;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        valUser();
        //System.IO.Stream instream = Page.Request.InputStream;//获取传入Http实体内容
        //BinaryReader br = new BinaryReader(instream, System.Text.Encoding.UTF8);//转换流
        //byte[] byt = br.ReadBytes((int)instream.Length);
        //string caj = System.Text.Encoding.UTF8.GetString(byt);//转换为string类型
        //par pa = (par)JavaScriptConvert.DeserializeObject(caj, typeof(par));//转换为JSON对应的类
        //Response.Write("Color="+pa.Color+" Year="+pa.Year );//输出从客户端发送的JSON内容
        //Response.End();
    }

    protected void valUser()
    {
        System.Threading.Thread.Sleep(2000);
        Stream instream = Page.Request.InputStream;
        BinaryReader br = new BinaryReader(instream, System.Text.Encoding.UTF8);
        byte[] byt = br.ReadBytes((int)instream .Length );
        string str = System.Text.Encoding.UTF8.GetString(byt);
        name n = (name)JavaScriptConvert.DeserializeObject(str, typeof(name));
        string result = "";
        if (n.user != Label1.Text)
        {
           result="用户不存在!";
           
        }
         if (n.password != Label2.Text)
        {
            result += "密码不对!";
        }

        Response.Write(result);
        Response.End();
    }


}

public class name
{
    private string _name, _password;

    public string user
    {
        get { return _name; }
        set { _name = value; }
    }

    public string password
    {
        get { return _password; }
        set { _password = value; }
    }
}

public class par
{
    private string year, color;


    public string Year
    {
        get { return year; }
        set { year = value; }
    }

    public string Color
    {
        get { return color; }
        set { color = value; }
    }

}