jQuery Ajax 方法调用 Asp.Net WebService 以及调用aspx.cs中方法的详细例子

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" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head >

<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;

background-color: #eee;

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 >

</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 = "http://tempuri.org/")]

[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" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<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 >

<div>

</div>

</form>

</body>

</html>