怎么用javascript连接webservice
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直接上示例代码 ：
MyService.asmx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Xml;
/// <summary>
///MyService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
//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 MyService : System.Web.Services.WebService {
public MyService () {
//如果使用设计的组件，请取消注释以下行
//InitializeComponent();
}
[WebMethod]
public string HelloWorld()
{
return "Hello World";
}
[WebMethod]
public XmlNode xml() {
XmlDocument doc = new XmlDocument();
doc.LoadXml("<hi>Hello World</hi>");
return doc.FirstChild;
}
[WebMethod]
public string add(int a, int b)
{
return (a + b)+"";
}
}
aspx页面
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="javascript" type="text/javascript">
// <!CDATA[
function Button1_onclick() {
var data;
data = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+"<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
+ "<soap12:Body>"
+ "<HelloWorldResponse xmlns=\"http://tempuri.org/\">"
+ "<HelloWorldResult>string</HelloWorldResult>"
+ "</HelloWorldResponse>"
+ "</soap12:Body>"
+"</soap12:Envelope>";
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL = "MyService.asmx";
xmlhttp.Open("POST", URL, false);
xmlhttp.SetRequestHeader("Content-Type", "text/xml; charset=gb2312");
xmlhttp.SetRequestHeader("SOAPAction", "http://tempuri.org/HelloWorld");
xmlhttp.setRequestHeader("Content-Length", data.length);
xmlhttp.Send(data);
var xml = xmlhttp.responseText;
var doc = new ActiveXObject("Microsoft.XMLDOM");
doc.loadXML(xml);
//alert(doc.selectSingleNode("//HelloWorldResult").text);
//alert(doc.xml);
alert(doc.selectSingleNode("//HelloWorldResponse").childNodes[0].nodeName);
}
function add() {
var a = 10;
var b = 15;
var data;
data = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
+ "<soap12:Body>"
+ "<add xmlns=\"http://tempuri.org/\">"
+ "<a>"+a+"</a>"
+ "<b>"+b+"</b>"
+ "</add>"
+ "</soap12:Body>"
+ "</soap12:Envelope>";
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL = "MyService.asmx";
xmlhttp.Open("POST", URL, false);
xmlhttp.SetRequestHeader("Content-Type", "text/xml; charset=gb2312");
xmlhttp.SetRequestHeader("SOAPAction", "http://tempuri.org/add");
xmlhttp.setRequestHeader("Content-Length", data.length);
xmlhttp.Send(data);
var xml = xmlhttp.responseText;alert(xml);
var doc = new ActiveXObject("Microsoft.XMLDOM");
doc.loadXML(xml);
}
function getxml() {
var a = 10;
var b = 15;
var data;
data = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
+ "<soap12:Body>"
+ "<add xmlns=\"http://tempuri.org/\">"
+ "</soap12:Body>"
+ "</soap12:Envelope>";
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL = "MyService.asmx";
xmlhttp.Open("POST", URL, false);
xmlhttp.SetRequestHeader("Content-Type", "text/xml; charset=gb2312");
xmlhttp.SetRequestHeader("SOAPAction", "http://tempuri.org/xml");
xmlhttp.setRequestHeader("Content-Length", data.length);
xmlhttp.Send(data);
var xml = xmlhttp.responseText; alert(xml);
var doc = new ActiveXObject("Microsoft.XMLDOM");
doc.loadXML(xml);
}
// ]]>
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Button1" type="button" value="button" onclick="getxml()" />
</div>
</form>
</body>
</html>
MyService.asmx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Xml;
/// <summary>
///MyService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
//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 MyService : System.Web.Services.WebService {
public MyService () {
//如果使用设计的组件，请取消注释以下行
//InitializeComponent();
}
[WebMethod]
public string HelloWorld()
{
return "Hello World";
}
[WebMethod]
public XmlNode xml() {
XmlDocument doc = new XmlDocument();
doc.LoadXml("<hi>Hello World</hi>");
return doc.FirstChild;
}
[WebMethod]
public string add(int a, int b)
{
return (a + b)+"";
}
}
aspx页面
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="javascript" type="text/javascript">
// <!CDATA[
function Button1_onclick() {
var data;
data = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+"<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
+ "<soap12:Body>"
+ "<HelloWorldResponse xmlns=\"http://tempuri.org/\">"
+ "<HelloWorldResult>string</HelloWorldResult>"
+ "</HelloWorldResponse>"
+ "</soap12:Body>"
+"</soap12:Envelope>";
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL = "MyService.asmx";
xmlhttp.Open("POST", URL, false);
xmlhttp.SetRequestHeader("Content-Type", "text/xml; charset=gb2312");
xmlhttp.SetRequestHeader("SOAPAction", "http://tempuri.org/HelloWorld");
xmlhttp.setRequestHeader("Content-Length", data.length);
xmlhttp.Send(data);
var xml = xmlhttp.responseText;
var doc = new ActiveXObject("Microsoft.XMLDOM");
doc.loadXML(xml);
//alert(doc.selectSingleNode("//HelloWorldResult").text);
//alert(doc.xml);
alert(doc.selectSingleNode("//HelloWorldResponse").childNodes[0].nodeName);
}
function add() {
var a = 10;
var b = 15;
var data;
data = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
+ "<soap12:Body>"
+ "<add xmlns=\"http://tempuri.org/\">"
+ "<a>"+a+"</a>"
+ "<b>"+b+"</b>"
+ "</add>"
+ "</soap12:Body>"
+ "</soap12:Envelope>";
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL = "MyService.asmx";
xmlhttp.Open("POST", URL, false);
xmlhttp.SetRequestHeader("Content-Type", "text/xml; charset=gb2312");
xmlhttp.SetRequestHeader("SOAPAction", "http://tempuri.org/add");
xmlhttp.setRequestHeader("Content-Length", data.length);
xmlhttp.Send(data);
var xml = xmlhttp.responseText;alert(xml);
var doc = new ActiveXObject("Microsoft.XMLDOM");
doc.loadXML(xml);
}
function getxml() {
var a = 10;
var b = 15;
var data;
data = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
+ "<soap12:Body>"
+ "<add xmlns=\"http://tempuri.org/\">"
+ "</soap12:Body>"
+ "</soap12:Envelope>";
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL = "MyService.asmx";
xmlhttp.Open("POST", URL, false);
xmlhttp.SetRequestHeader("Content-Type", "text/xml; charset=gb2312");
xmlhttp.SetRequestHeader("SOAPAction", "http://tempuri.org/xml");
xmlhttp.setRequestHeader("Content-Length", data.length);
xmlhttp.Send(data);
var xml = xmlhttp.responseText; alert(xml);
var doc = new ActiveXObject("Microsoft.XMLDOM");
doc.loadXML(xml);
}
// ]]>
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Button1" type="button" value="button" onclick="getxml()" />
</div>
</form>
</body>
</html>
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javascript跨域调用webservice写法如下：
//WebService地址及方法名称。其中GetUserName是要调用的方法
var URL = "UserManage/UserInfo.asmx/GetUserName";
var Params = "accounts=leftfist";//传给WebService的参数
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.Open("POST",URL, false);//用POST方法
xmlhttp.SetRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlhttp.SetRequestHeader ("Content-Length",Params.length);
xmlhttp.send(Params);
if( xmlhttp.Status == 200 ){//200代表成功
var res = xmlhttp.responseXML;//得到WebService传回的结果
return res.childNodes[1].text + "，";
}
return xmlhttp.responseText;
//WebService地址及方法名称。其中GetUserName是要调用的方法
var URL = "UserManage/UserInfo.asmx/GetUserName";
var Params = "accounts=leftfist";//传给WebService的参数
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.Open("POST",URL, false);//用POST方法
xmlhttp.SetRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlhttp.SetRequestHeader ("Content-Length",Params.length);
xmlhttp.send(Params);
if( xmlhttp.Status == 200 ){//200代表成功
var res = xmlhttp.responseXML;//得到WebService传回的结果
return res.childNodes[1].text + "，";
}
return xmlhttp.responseText;
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