|
在JavaScript中调用WebService 的几种方法
第一种方法
<script language="javascript">
function PostRequestData(URL,data){
var xmlhttp = new ActiveXObject("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);
var result = xmlhttp.status;
}
catch(ex) {
return("0" + ex.description + "|" + ex.number);
}
if(result==200) {
return("1" + xmlhttp.responseText);
}
xmlhttp = null;
}
第二种方法
function loadit(value){
var url = 'http://localhost/myService/test.asmx';
var data ;
var r;
data = '<?xml version="1.0" encoding="utf-8"?>';
data = data + '<soap:Envelope xmlns: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 + '<isNumner xmlns="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>
第三种方法: 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
<script language="javascript">
function timer(){
service.useService("http://localhost/myService/test.asmx?WSDL","test");
service.test.callService(callback,"isNumner",'gdh');
}
function callback(res){
if (!res.error)
time.innerText=res.value;
}
</script>
<div id="service" style="behavior:url(webservice.htc)"></div>
<span id="time"></span>
2. 在Asp中
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<%
Dim strxml
Dim str
'定义soap消息
strxml = "<?xml version='1.0' encoding='tf-8'?>"
strxml = strxml & "<soap:Envelope xmlns: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 & "<isNumner xmlns='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
'set x = createobject("Microsoft.DOMDocument")
'初始化XML对象
'将手写的SOAP字符串转换为XML对象
' x.loadXML strxml
'初始化http对象
Set h = 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)
While h.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
'Set x = createobject("MSXML2.DOMDocument")
' x.loadXML str
'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。
|
