接触WebService也很久了，但是使用asp调用教程的却不多，还有转成json也不多见，今天绵阳动力网络公司就分享给大家：

首先定义SOAP数据，然后创建HTTP对象，然后使用POST提交，获取状态码为200，就说明调用成功，再进行下一步操作……

<!--#Include virtual="/Include/json.min.asp"-->
<%
Dim strxml
Dim str
 
'定义soap消息
strxml = "<?xml version='1.0' encoding='utf-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 & "<GetCategories xmlns='http://tempuri.org/'>"
strxml = strxml & "<reqcode>30000001</reqcode>" '参数1
strxml = strxml & "<sign>ssssss</sign>" '参数2
strxml = strxml & "</GetCategories>"
strxml = strxml & "</soap:Body>"
strxml = strxml & "</soap:Envelope>"
 
Set h = createobject( "Microsoft.XMLHTTP")
'向指定的URL发送Post消息
h.open "POST", "http://www.domain.com/WebService.asmx", False
h.setRequestHeader "Content-Type", "text/xml; charset=utf-8"
h.setRequestHeader "Content-Length",LEN(strxml)
h.setRequestHeader "SOAPAction", "http://tempuri.org/GetCategories"
h.send (strxml)
 
'显示返回的XML信息
 
If h.Status = 200 Then
  Set xmlDOC = server.CreateObject("MSXML.DOMDocument")
  xmlDOC.load(h.responseXML)
  jsonText = xmlDOC.childNodes(1).Text 
   
  '转换成JSON，调用json.min.asp
  Set categories = JSON.parse(jsonText)
   
  for i = 0 to categories.Length -1
  　　Response.Write(CStr(categories.get(i).CategoryName)) '属性
  　　for j = 0 to categories.get(i).Labels.Length - 1 '集合
    　　Response.Write(CStr(categories.get(i).Labels.get(j).LabelName))
  　　next
  next
  <pre name="code" class="vb"><script language="javascript" runat="Server">
if(!Array.prototype.get){Array.prototype.get=function(prop){return this[prop];}}"use 
strict";if(!this.JSON){JSON={};}
(function(){function f(n){return n<10?'0'+n:n;}
if(typeof Date.prototype.toJSON!=='function'){Date.prototype.toJSON=function(key){return 
isFinite(this.valueOf())?this.getUTCFullYear()+'-'+
f(this.getUTCMonth()+1)+'-'+
f(this.getUTCDate())+'T'+
f(this.getUTCHours())+':'+
f(this.getUTCMinutes())+':'+
f(this.getUTCSeconds())+'Z':null;};String.prototype.toJSON=Number.prototype.toJSON=
Boolean.prototype.toJSON=function(key){return this.valueOf();};}
var cx=/[\?\?\?-\?\?\?\?\?-\?\?-\?\?-\?\?\?-\?]/g,escapable=/[\\\"\x00-\x1f\x7f-\x9f\?
\?-\?\?\?\?\?-\?\?-\?\?-\?\?\?-\?]/g,gap,indent,meta={'\b':'\\b','\t':'\\t','\n':'\\n',
'\f':'\\f','\r':'\\r','"':'\\"','\\':'\\\\'},rep;function quote(string){escapable.
lastIndex=0;return escapable.test(string)?'"'+string.replace(escapable,function(a){
var c=meta[a];return typeof c==='string'?c:'\\u'+('0000'+a.charCodeAt(0).toString(16)
).slice(-4);})+'"':'"'+string+'"';}
function str(key,holder){var i,k,v,length,mind=gap,partial,value=holder[key];if(
value&&typeof value==='object'&&typeof value.toJSON==='function'){value=value.toJSON(key);}
if(typeof rep==='function'){value=rep.call(holder,key,value);}
switch(typeof value){case'string':return quote(value);case'number':return 
isFinite(value)?String(value):'null';case'boolean':case'null':return String(value);
case'object':if(!value){return'null';}
gap+=indent;partial=[];if(Object.prototype.toString.apply(value)==='[object Array]'){
length=value.length;for(i=0;i<length;i+=1){partial[i]=str(i,value)||'null';}
v=partial.length===0?'[]':gap?'[\n'+gap+
partial.join(',\n'+gap)+'\n'+
mind+']':'['+partial.join(',')+']';gap=mind;return v;}
if(rep&&typeof rep==='object'){length=rep.length;for(i=0;i<length;i+=1){k=rep[i];if(
typeof k==='string'){v=str(k,value);if(v){partial.push(quote(k)+(gap?': ':':')+v);}}}}
else{for(k in value){if(Object.hasOwnProperty.call(value,k)){v=str(k,value);if(v){
partial.push(quote(k)+(gap?': ':':')+v);}}}}
v=partial.length===0?'{}':gap?'{\n'+gap+partial.join(',\n'+gap)+'\n'+
mind+'}':'{'+partial.join(',')+'}';gap=mind;return v;}}
if(typeof JSON.stringify!=='function'){JSON.stringify=function(value,replacer,space){
var i;gap='';indent='';if(typeof space==='number'){for(i=0;i<space;i+=1){indent+=' ';}}
else if(typeof space==='string'){indent=space;}
rep=replacer;if(replacer&&typeof replacer!=='function'&&(typeof replacer!=='object'||typeof 
replacer.length!=='number')){throw new Error('JSON.stringify');}
return str('',{'':value});};}
if(typeof JSON.parse!=='function'){JSON.parse=function(text,reviver){var j;function 
walk(holder,key){var k,v,value=holder[key];if(value&&typeof value==='object'){for(k in value){
if(Object.hasOwnProperty.call(value,k)){v=walk(value,k);if(v!==undefined){value[k]=v;}else{delete value[k];}}}}
return reviver.call(holder,key,value);}
cx.lastIndex=0;if(cx.test(text)){text=text.replace(cx,function(a){return'\\u'+
('0000'+a.charCodeAt(0).toString(16)).slice(-4);});}
if(/^[\],:{}\s]*$/.test(text.replace(/\\(?:[\\\/bfnrt]|u[0-9a-fA-F]{4})/g,'@').replace(/ [^\\\n\r]* |true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,']').replace(/(?:^|:|,)
(?:\s*\[)+/g,''))){j=eval('('+text+')');return typeof reviver==='function'?walk({'':j},''):j;}
throw new SyntaxError('JSON.parse');};}}());
</script>
Set xmlDOC = nothingElse Response.Write h.Status &" " Response.Write h.StatusText
End if
%>

附：json.min.asp

<script language="javascript" runat="Server">
if(!Array.prototype.get){Array.prototype.get=function(prop){return this[prop];}}"use 
strict";if(!this.JSON){JSON={};}
(function(){function f(n){return n<10?'0'+n:n;}
if(typeof Date.prototype.toJSON!=='function'){Date.prototype.toJSON=function(key){
return isFinite(this.valueOf())?this.getUTCFullYear()+'-'+
f(this.getUTCMonth()+1)+'-'+
f(this.getUTCDate())+'T'+
f(this.getUTCHours())+':'+
f(this.getUTCMinutes())+':'+
f(this.getUTCSeconds())+'Z':null;};String.prototype.toJSON=Number.prototype.toJSON=
Boolean.prototype.toJSON=function(key){return this.valueOf();};}
var cx=/[\?\?\?-\?\?\?\?\?-\?\?-\?\?-\?\?\?-\?]/g,escapable=/[\\\"\x00-\x1f\x7f-\x9f
\?\?-\?\?\?\?\?-\?\?-\?\?-\?\?\?-\?]/g,gap,indent,meta={'\b':'\\b','\t':'\\t','\n':'
\\n','\f':'\\f','\r':'\\r','"':'\\"','\\':'\\\\'},rep;function quote(string){escapable.
lastIndex=0;return escapable.test(string)?'"'+string.replace(escapable,function(a){var 
c=meta[a];return typeof c==='string'?c:'\\u'+('0000'+a.charCodeAt(0).toString(16)).
slice(-4);})+'"':'"'+string+'"';}
function str(key,holder){var i,k,v,length,mind=gap,partial,value=holder[key];if(
value&&typeof value==='object'&&typeof value.toJSON==='function'){value=value.toJSON(key);}
if(typeof rep==='function'){value=rep.call(holder,key,value);}
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gap+=indent;partial=[];if(Object.prototype.toString.apply(value)==='[object Array]'){length
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v=partial.length===0?'[]':gap?'[\n'+gap+
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mind+'}':'{'+partial.join(',')+'}';gap=mind;return v;}}
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{var k,v,value=holder[key];if(value&&typeof value==='object'){for(k in value){if(Object.hasOwnProperty.
call(value,k)){v=walk(value,k);if(v!==undefined){value[k]=v;}else{delete value[k];}}}}
return reviver.call(holder,key,value);}
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</script>