Jquery and ashx achieve login of ajax

front dc:

<!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>

    <title></title>

    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript"></script>

    <script type="text/javascript">

        //用jquery实现无刷新的登录验证 

        function login() {

            $.ajax({

                url: 'Login.ashx', //访问路径 

                data: 'username=' + $("#username").val() + "&password=" + $("#password").val(), //需要验证的参数 

                type: 'post', //传值的方式 

                error: function () {//访问失败时调用的函数 

                    alert("链接服务器错误!");

                },

                success: function (msg) {//访问成功时调用的函数,这里的msg是Login.ashx返回的值 

                    //alert(msg);

                    $("#a").html(msg);

                }

            });

        }

    </script>

</head>

<body>

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

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

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

    <div id="a">

        <!--这里显示返回信息-->

    </div>

</body>

</html>

ashx dc:

<%@ WebHandler Language="C#" Class="login" %>



using System;

using System.Web;



public class login : IHttpHandler

{

    public void ProcessRequest(HttpContext context)

    {

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

        string username = context.Request.Form["username"];

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

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

        {

            context.Response.Write("登录成功!");

        }

        else

        {

            context.Response.Write("登录失败!用户名和密码错误!");

        }

    }

    public bool IsReusable

    {

        get

        {

            return false;

        }

    }



}

 

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