<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="loginDemo.aspx.cs" Inherits="WebThreadTest.loginDemo" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>无标题页</title>

    <script src="js/jquery-1.3.2.min.js" type="text/javascript"></script>

    <script src="js/jquery.cookie.js" type="text/javascript"></script>

</head>

<body>

    <div>

         登录名

         <input type="text" id="txtLoginName" />

        <br />

        密码

        <input type="password" id="txtPassword" />

        <br />

        <input type="checkbox" id="cbRemember" />

        <label for="cbRemember">记住密码</label>

        <input type="submit" value="登录" onclick="login();"/>

    </div>

    <script type="text/javascript">

        $(function(){

            if ($.cookie("cbRemember") == "true") {

                $("#cbRemember").attr("checked", true);

                $("#txtLoginName").val($.cookie("loginName"));

                $("#txtPassword").val($.cookie("passWord"));

                //获取url中从？开始获取值: ?logout=true

                var params = window.location.search;

                var paramArray = params.split("logout=");

                //当不是退出时 执行自动登录

                if(paramArray[1]!="true")

                {

                    login();

                }

            }

        });

        function login(){

            var loginName = $("#txtLoginName").val();

            var password = $("#txtPassword").val();

            var p = {};

            p.loginName = loginName;

            p.password = password;

            $.post("login.ashx",p,function(r){

                if(r=="ok")

                {

                     if ($("#cbRemember").is(":checked")) {

                        var txtLoginNameName = $("#txtLoginName").val();

                        var passWord = $("#txtPassword").val();

                        $.cookie("cbRemember", "true", { expires: 7 }); // 存储一个带7天期限的 cookie

                        $.cookie("loginName", txtLoginNameName, { expires: 7 }); // 存储一个带7天期限的 cookie

                        $.cookie("passWord", passWord, { expires: 7 }); // 存储一个带7天期限的 cookie

                    }

                    else {

                        $.cookie("cbRemember", "false", { expires: -1 });

                        $.cookie("loginName", '', { expires: -1 });

                        $.cookie("passWord", '', { expires: -1 });

                    }

                    //alert("登录成功");

                    window.location="/";

                }

                else

                {

                    $.cookie("cbRemember", "false", { expires: -1 });

                    $.cookie("loginName", '', { expires: -1 });

                    $.cookie("passWord", '', { expires: -1 });

                    alert("登录名或密码错误");

                }

            });

        }

    </script>

</body>

</html>

  protected void Page_Load(object sender, EventArgs e)

        {

            if (!IsPostBack)

            {

                object loginName = Session["loginName"];

                object password = Session["password"];

                if (loginName != null && password != null)

                {

                    Response.Redirect("/");

                }

            }

        }

using System;

using System.Collections;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Services;

using System.Web.Services.Protocols;

using System.Xml.Linq;

using System.Web.SessionState;

namespace WebThreadTest

{

    /// <summary>

    /// $codebehindclassname$ 的摘要说明

    /// </summary>

    [WebService(Namespace = "http://tempuri.org/")]

    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

    public class login : IHttpHandler, IRequiresSessionState

    {

        public void ProcessRequest(HttpContext context)

        {

            context.Response.ContentType = "text/plain";

            string loginName = context.Request["loginName"];

            string password = context.Request["password"];

            if (loginName == "admin" && password == "")

            {

                context.Session["loginName"] ="admin";

                context.Session["password"] = "";

                context.Response.Write("ok");

            }

            else

            {

                context.Response.Write("error");

            }

        }

        public bool IsReusable

        {

            get

            {

                return false;

            }

        }

    }

}