jquery ajax Post Get 例子登录验证

$.post(url, params, callback)

用HTTP POST方式装入一个远程页面

返回值：XMLHttpRequest

参数：

url (String): 装入页面的URL地址。
params (Map): （可选）发送到服务端的键／值对参数。
callback (Function): （可选）当数据装入完成时执行的函数

Login登录前端代码

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="Login" %> <!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>Login Page</title> <mce:script src="jQuery.js" mce_src="jQuery.js" type="text/javascript"></mce:script> <mce:script language="javascript" type="text/javascript"></mce:script> </head> <body> <form id="form1" runat="server"> <div style="margin-left:32px;" mce_style="margin-left:32px;"> <a>User:</a><input id="txtUser" type="text" /> </div> <div> <a>Password:</a><input id="txtPassword" type="text" /> </div> <div id="msg"></div> <div> <input id="btnLogin" type="button" value="Login" /></div> </form> </body> </html>

checkLogin服务器端代码

using System; using System.Data; using System.Configuration; using System.Collections; 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; public partial class checkLogin : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { string retVal = ""; string userName = Request["userName"]; string userPwd = Request["userPwd"]; if (userName == "ike" && userPwd == "123") { retVal = "Login is success"; } else { retVal = "Login is false"; } Response.Write(retVal); } } }