一、jQuery Ajax 方法调用 Asp.Net WebService (引自Terry Feng)
Html文件
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns=""><head id="Head1" runat="server"> <title></title><script type="text/javascript" src="Scripts/jquery-1.4.1.js" ></script>
<style type="text/css">
.hover { cursor: pointer; /*小手*/ background: #ffc; /*背景*/ } .button { width: 150px; float: left; text-align: center; margin: 10px; padding: 10px; border: 1px solid #888; } #dictionary { text-align: center; font-size: 18px; clear: both; border-top: 3px solid #888; } #loading { border: 1px #000 solid; padding: 20px; margin: 100px 0 0 200px; position: absolute; display: none; } #switcher { } </style><script type="text/javascript">
//无参数调用 $(document).ready(function () { $('#btn1').click(function () { $.ajax({ type: "POST", //访问WebService使用Post方式请求 contentType: "application/json", //WebService 会返回Json类型 url: "WebService1.asmx/HelloWorld", //调用WebService的地址和方法名称组合 ---- WsURL/方法名 data: "{}", //这里是要传递的参数,格式为 data: "{paraName:paraValue}",下面将会看到 dataType: 'json', success: function (result) { //回调函数,result,返回值 alert(result.d); $('#dictionary').append(result.d); } }); }); }); //有参数调用 $(document).ready(function () { $("#btn2").click(function () { $.ajax({ type: "POST", contentType: "application/json", url: "WebService1.asmx/GetWish", data: "{value1:'心想事成',value2:'万事如意',value3:'牛牛牛',value4:2009}", dataType: 'json', success: function (result) { $('#dictionary').append(result.d); } }); }); }); //返回集合(引用自网络,很说明问题) $(document).ready(function () { $("#btn3").click(function () { $.ajax({ type: "POST", contentType: "application/json", url: "WebService1.asmx/GetArray", data: "{i:10}", dataType: 'json', success: function (result) { $(result.d).each(function () { //alert(this); $('#dictionary').append(this.toString() + " "); //alert(result.d.join(" | ")); }); } }); }); }); //返回复合类型 $(document).ready(function () { $('#btn4').click(function () { $.ajax({ type: "POST", contentType: "application/json", url: "WebService1.asmx/GetClass", data: "{}", dataType: 'json', success: function (result) { $(result.d).each(function () { //alert(this); $('#dictionary').append(this['ID'] + " " + this['Value']); //alert(result.d.join(" | ")); });}
}); }); });//返回DataSet(XML)
$(document).ready(function () { $('#btn5').click(function () { $.ajax({ type: "POST", url: "WebService1.asmx/GetDataSet", data: "{}", dataType: 'xml', //返回的类型为XML ,和前面的Json,不一样了 success: function (result) { //演示一下捕获 try { $(result).find("Table1").each(function () { $('#dictionary').append($(this).find("ID").text() + " " + $(this).find("Value").text()); }); } catch (e) { alert(e); return; } }, error: function (result, status) { //如果没有上面的捕获出错会执行这里的回调函数 if (status == 'error') { alert(status); } } }); }); });//Ajax 为用户提供反馈,利用ajaxStart和ajaxStop 方法,演示ajax跟踪相关事件的回调,他们两个方法可以添加给jQuery对象在Ajax前后回调 //但对与Ajax的监控,本身是全局性的 $(document).ready(function () { $('#loading').ajaxStart(function () { $(this).show(); }).ajaxStop(function () { $(this).hide(); }); });
// 鼠标移入移出效果,多个元素的时候,可以使用“,”隔开
$(document).ready(function () { $('div.button').hover(function () { $(this).addClass('hover'); }, function () { $(this).removeClass('hover'); }); }); </script></head>
<body> <form id="form1" runat="server"> <div id="switcher"> <h2> jQuery 的WebServices 调用</h2> <div class="button" id="btn1"> HelloWorld</div> <div class="button" id="btn2"> 传入参数</div> <div class="button" id="btn3"> 返回集合</div> <div class="button" id="btn4"> 返回复合类型</div> <div class="button" id="btn5"> 返回DataSet(XML)</div> </div> <div id="loading"> 服务器处理中,请稍后。 </div> <div id="dictionary"> </div> </form></body></html>
WebService1.cs代码
using System;
using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Services;using System.Data; /// <summary> /// WebService1 的摘要说明 /// </summary> [WebService(Namespace = "")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务,请取消对下行的注释。 [System.Web.Script.Services.ScriptService] public class WebService1 : System.Web.Services.WebService { /// <summary> /// 无参数 /// </summary> /// <returns></returns> [WebMethod] public string HelloWorld() { return "Hello World "; }/// <summary>
/// 带参数 /// </summary> /// <param name="value1"></param> /// <param name="value2"></param> /// <param name="value3"></param> /// <param name="value4"></param> /// <returns></returns> [WebMethod] public string GetWish(string value1, string value2, string value3, int value4) { return string.Format("祝您在{3}年里 {0}、{1}、{2}", value1, value2, value3, value4); }/// <summary>
/// 返回集合 /// </summary> /// <param name="i"></param> /// <returns></returns> [WebMethod] public List<int> GetArray(int i) { List<int> list = new List<int>();while (i >= 0)
{ list.Add(i--); }return list;
}/// <summary>
/// 返回一个复合类型 /// </summary> /// <returns></returns> [WebMethod] public Class1 GetClass() { return new Class1 { ID = "1", Value = "牛年大吉" }; } /// <summary> /// 返回XML /// </summary> /// <returns></returns> [WebMethod] public DataSet GetDataSet() { DataSet ds = new DataSet(); DataTable dt = new DataTable(); dt.Columns.Add("ID", Type.GetType("System.String")); dt.Columns.Add("Value", Type.GetType("System.String")); DataRow dr = dt.NewRow(); dr["ID"] = "1"; dr["Value"] = "新年快乐"; dt.Rows.Add(dr); dr = dt.NewRow(); dr["ID"] = "2"; dr["Value"] = "万事如意"; dt.Rows.Add(dr); ds.Tables.Add(dt); return ds; } } //自定义的类,只有两个属性 public class Class1 { public string ID { get; set; } public string Value { get; set; } }
二、jQuery Ajax 方法调用 aspx.cs方法
首先在 aspx.cs文件里建一个公开的静态方法,然后加上WebMethod属性(要引入System.Web.Services)。
代码如下:
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;public partial class Default2 : System.Web.UI.Page
{ protected void Page_Load(object sender, EventArgs e) {}
[WebMethod] public static string GetUserName() { return "Hello"; }//如果要在这个方法里操作session,那 还得将WebMethod的EnableSession 属性设为true 。即:
[WebMethod(EnableSession = true)]//或[WebMethod(true)]
public static string GetUserName1() { return "Hello"; }}
aspx页面代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<head runat="server"> <title></title> <script type="text/javascript" src="Scripts/jquery-1.4.1.js" charset="gb2132"></script> <script type="text/javascript"> $.ajax({ type: "POST", contentType: "application/json", url: "Default2.aspx/GetUserName", data: "{}", dataType: "json", success: function (result) { alert(result.d); } });</script>
</head><body> <form id="form1" runat="server"> <div> </div> </form></body></html>