$.ajax({                 async: true, // 默认true(异步请求)                 cache: true, // 默认true,设置为 false 将不会从浏览器缓存中加载请求信息。                 type: "POST", // 默认:GET 请求方式:[POST/GET]                 dataType: "xml", //默认["xml"/"html"] 返回数据类型:["xml" / "html" / "script" / "json" / "jsonp"]                 url: "Test.ashx", // 默认当前地址,发送请求的地址                 data: { key: "value" }, // 发送到服务器的数据                 error: function(xml) { alert('Error loading XML document' + xml); }, // 请求失败时调用                 timeout: 1000, // 设置请求超时时间                 success: function(xml) { // 请求成功后回调函数 参数：服务器返回数据,数据格式.                     $("#users").empty();                     // 用Jquery处理xml数据                     $(xml).find('Table').each(function() {                         var loginname = $(this).find("Loginname").text();                         var Name").text();                         $("#users").append("<li>" + loginname + " - " + name + "</li>");                     });                     /*                     $(xml).find('user').each(function(i) {                         var loginname = $(xml).find("user loginname").eq(i).text();                         var user name").eq(i).text();                         $("#users").append("<p>" + loginname + "</p>" + "<p>" + name + "</p><Br />");                     })                     $(xml).find("student").each(function(i){                         var id"); //取对象                         var id_value=$(this).children("id").text(); //取文本                         alert(id_value);//这里就是ID的值了。                         alert($(this).attr("email")); //这里能显示student下的email属性。                         //最后输出了，这个是cssrain的写法，貌似比macnie更JQ一点                         $('<li></li>').html(id_value).appendTo('ol');                     });                     */                 }             })

<%@ WebHandler Language="C#" %> using System; using System.Web; using System.Text; using System.Data; public class Test : IHttpHandler {     public void ProcessRequest (HttpContext context) {         context.Response.StatusCode = 200;         context.Response.Cache.SetCacheability(HttpCacheability.NoCache);         DataSet ds = new DataSet("AccountList");         ds = GetList("Account","AccountId","Loginname,Name",50,1,false, false,"1=1");         context.Response.ContentType = "text/xml";         context.Response.Charset = "GB2312";         context.Response.Clear();         context.Response.Write("<?xml version=\"1.0\" encoding=\"gbk\"?>\n " + ds.GetXml());         /*         StringBuilder sb = new StringBuilder();         sb.Append("<?xml version=\"1.0\" encoding=\"gbk\"?>");         sb.Append("<AccountList>");         sb.Append("<Account><loginname>Loro5</loginname><name>wulu</name></user>");         sb.Append("</Account>");         context.Response.Write(sb.ToString());         */         context.Response.End();     }     public bool IsReusable {         get {             return false;         }     } }