前台页面
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="QianBao.Dictionary.WebForm1" %> <!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 id="Head1" runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Ajax实例1</title>
<script src="js/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#btn1").click(function () {
var txtparam1 = $("#txtParam1").val();
var txtparam2 = $("#txtParam2").val(); $.ajax({
url: "WebForm1.aspx/AjaxMethod", //发送到本页面后台AjaxMethod方法
type: "POST",
dataType: "json",
async: true, //async翻译为异步的，false表示同步，会等待执行完成，true为异步
contentType: "application/json; charset=utf-8", //不可少
data: "{param1:'" + txtparam1 + "',param2:'" + txtparam2 + "'}",
success: function (data) {
$("#result").html(data.d);
},
error: function () {
alert("请求出错处理");
}
}); });
});
</script>
</head>
<body>
<form id="form1" runat="server">
参数1：<input type="text" id="txtParam1" value="" /><br />
参数2：<input type="text" id="txtParam2" value="" /><br />
<input type="button" id="btn1" value="提交" /><br />
<div id="result">
</div>
</form>
</body>
</html>
后台
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls; using System.Web.Services; namespace QianBao.Dictionary
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
} //type方式必须是post，方法必须是静态的，方法声明要加上特性[System.Web.Services.WebMethod()]，
//传递的参数个数也应该和方法的参数相同。
[System.Web.Services.WebMethod()]
public static string AjaxMethod(string param1, string param2)
{
return "参数1为：" + param1 + "，参数2为：" + param2;
}
}
}