WebForm里Ajax访问一般处理程序

1.代码结构

2.Login.aspx

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

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <meta name="Author" content="LDH"/>
    <meta name="Description" content="WebForm里AjaxDemo"/>
    <title>WebForm里AJaxDemo</title>
    <script src="Scripts/jquery-2.1.4.min.js"></script>
</head>
<body>
<form id="form1" runat="server">
    <div style="text-align: center;">
        <hr/>
        账户：<asp:TextBox ID="txtAccount" runat="server"></asp:TextBox>
        <asp:Button ID="btnLogin" runat="server" Text="登录"/>
        <br/>
    </div>
</form>

<script type="text/javascript">
    $(function() {
        /// <summary>登录</summary>
        $('#btnLogin').click(function() {
            var account = $.trim($('#txtAccount').val());
            if (!account) {
                alert('Please enter your account name.');
            } else {
                //  发送GET请求-OK
                $.get("HttpHandler/LoginHandler.ashx", { account: account }, function(data) { alert(data); }, "text");
            }
        });
    })
</script>
</body>
</html>

3.LoginHandler.ashx

using System.Web;

namespace WebFormAjaxDemo.HttpHandler
{
    /// <summary>
    ///     LoginHandler 的摘要说明
    /// </summary>
    public class LoginHandler : IHttpHandler
    {
        //public void ProcessRequest(HttpContext context)
        //{
        //    context.Response.ContentType = "text/plain";
        //    context.Response.Write("Hello World");
        //}

        public void ProcessRequest(HttpContext context)
        {
            var account = context.Request.Params["account"];
            //var account = context.Request.QueryString["account"];

            if (account.ToLower() != "admin")
            {
                context.Response.Write("Login failed.");
            }
            else
            {
                context.Response.Write("Login successfully.");
            }

            context.Response.End();
        }

        public bool IsReusable
        {
            get { return false; }
        }
    }
}

4.运行效果

posted @ 2018-06-07 15:21 Love In Winter 阅读(26) 评论(0) 编辑收藏举报

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