几种调用WebService的方法
1． 在JavaScript中调用WebService
<scriptlanguage="javascript">
functionPostRequestData(URL,data){
varxmlhttp=newActiveXObject("Microsoft.XMLHTTP");
xmlhttp.Open("POST",URL,false);
xmlhttp.SetRequestHeader("Content-Type","text/xml;charset=utf-8");
xmlhttp.SetRequestHeader("SOAPAction","http://tempuri.org/myService/test/isNumner");
try{
xmlhttp.Send(data);
varresult=xmlhttp.status;
}
catch(ex){
return("0"ex.description"|"ex.number);
}
if(result==200){
return("1"xmlhttp.responseText);
}
xmlhttp=null;
}
functionloadit(value){
varurl=’http://localhost/myService/test.asmx’;
vardata;
varr;
data=’<?xmlversion="1.0"encoding="utf-8"?>’;
data=data’<soap:Envelopexmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:xsd="http://www.w3.org/2001/XMLSchema"xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">’;
data=data’<soap:Body>’;
data=data’<isNumnerxmlns="http://tempuri.org/myService/test">’;
data=data’<str>’value’</str>’;
data=data’</isNumner>’;
data=data’</soap:Body>’;
data=data’</soap:Envelope>’;
r=PostRequestData(url,data);
document.write(r);
}
loadit(’5’);
</script>
还可以使用微软的htc组件来实现，可以到这里下载:
http://msdn.microsoft.com/workshop/author/webservice/webservice.htc
<scriptlanguage="javascript">
functiontimer(){
service.useService("http://localhost/myService/test.asmx?WSDL","test");
service.test.callService(callback,"isNumner",’gdh’);
}
functioncallback(res){
if(!res.error)
time.innerText=res.value;
}
</script>
<divid="service"style="behavior:url(webservice.htc)"></div>
<spanid="time"></span>
2.在Asp中
<%@LANGUAGE="VBSCRIPT"CODEPAGE="936"%>
<%
Dimstrxml
Dimstr
’定义soap消息
strxml="<?xmlversion=’1.0’encoding=’tf-8’?>"
strxml=strxml&"<soap:Envelopexmlns:xsi=’http://www.w3.org/2001/XMLSchema-instance’xmlns:xsd=’http://www.w3.org/2001/XMLSchema’xmlns:soap=’http://schemas.xmlsoap.org/soap/envelope/’>"
strxml=strxml&"<soap:Body>"
strxml=strxml&"<isNumnerxmlns=’http://tempuri.org/myService/test’>"
strxml=strxml&"<str>4</str>"
strxml=strxml&"</isNumner>"
strxml=strxml&"</soap:Body>"
strxml=strxml&"</soap:Envelope>"
’定义一个XML的文档对象，将手写的或者接受的XML内容转换成XML对象
’setx=createobject("Microsoft.DOMDocument")
’初始化XML对象
’将手写的SOAP字符串转换为XML对象
’x.loadXMLstrxml
’初始化http对象
Seth=createobject("Microsoft.XMLHTTP")
’向指定的URL发送Post消息
h.open"POST","http://localhost/myService/test.asmx",False
h.setRequestHeader"Content-Type","text/xml"
h.setRequestHeader"SOAPAction","http://tempuri.org/myService/test/isNumner"
h.send(strxml)
Whileh.readyState<>4
Wend
’显示返回的XML信息
str=h.responseText
’将返回的XML信息解析并且显示返回值
’Setx=createobject("MSXML2.DOMDocument")
’x.loadXMLstr
’str=x.childNodes(1).Text
response.write(str)
%>
3．在.net中
在.net中调用WebService就方便多了，没有必要自己写soap消息了，以上都是用XMLHTTP来发送WebService请求的，在.net只要添加了web引用，会自动为你创建一个代理类。然后使用代理类就像用自己定义的类一样方便