What's the best library/package/class out there开发者_如何学C for calling SOAP web services from ActionScript 3, without using the Flex framework?
Suggested reading: Advanced ActionScript 3 with Design Patterns by Joey Lott and Danny Patterson Go to chapter 15 for a better and complete solution.
My example code:
private var xmlResults:XML = new URLLoader;
private var urlLoader:URLLoader = new URLLoader();
public function fErrorHandler(e:IOErrorEvent):void {
trace("xml failed!");
}
//when the "loader" event object finishes the loading of the xml file, run other needed functions to process the data
private function fLoaderCompleteHandler(event:Event):void {
trace("xml loaded!!"); //jwt testing
var result2:XML = new XML(urlLoader.data); // loads the xml file data into the xml object
xmlResults = result2; //have the global xml object equal the current data loaded xml object
result2 = null; // dont need current xml object any more so erase it
fParseXML(0); //process the first set of records from the xml object
trace("found xml" + xmlResults.toString());
}
public function fParseXML(intAddNum:Number):void{
//create variables to store the record info
//
var envelope:XML = xmlResults; //XML(urlLoader.data);
var soap:Namespace = envelope.namespace("soap");
var responseN:Namespace = new Namespace("http://www.domain.com/school/ServiceCollege");
var resultL:XMLList = envelope.soap::Body.responseN::HelloTestResponse.responseN::HelloTestResult;
var strTest:String;
//if only one response field will be return by the web service
strTest = resultL;
//do something like this if multiple response feilds will be returned
//strTest = resultL.response::schoolName.toString();
trace("parsing:" + strTest);
trace("done loading:");
}
public function fBeginRequest():void{
var strXMLDataRequest:String
var urlRequest:URLRequest = new URLRequest();
urlRequest.contentType = "text/xml; charset=utf-8";
urlRequest.method = "POST";
urlRequest.url = "http://www.domain.com/school/serviceCollege.asmx";
var soapAction:URLRequestHeader = new URLRequestHeader("SOAPAction","http://www.domain.com/school/ServiceCollege/HelloTest");
urlRequest.requestHeaders.push(soapAction);
strXMLDataRequest = "<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/\">";
strXMLDataRequest = strXMLDataRequest + "<soap:Body>";
strXMLDataRequest = strXMLDataRequest + "<HelloTest xmlns=\"http://www.domain.com/school/ServiceCollege\" />";
strXMLDataRequest = strXMLDataRequest + "</soap:Body>";
strXMLDataRequest = strXMLDataRequest + "</soap:Envelope>";
urlRequest.data = new XML(strXMLDataRequest);
urlLoader.load(urlRequest);
urlLoader.addEventListener(IOErrorEvent.IO_ERROR, fErrorHandler); //add the event to the "loader" object
urlLoader.addEventListener(Event.COMPLETE, fLoaderCompleteHandler); //add the event to the "loader" object
}
Soap Request:
<?xml version="1.0" encoding="utf-8"?>
<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/">
<soap:Body>
<HelloTest xmlns="http://www.domain.com/school/ServiceCollege" />
</soap:Body>
</soap:Envelope>
Soap Response:
<?xml version="1.0" encoding="utf-8"?>
<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/">
<soap:Body>
<HelloTestResponse xmlns="http://www.domain.com/school/ServiceCollege">
<HelloTestResult>string</HelloTestResult>
</HelloTestResponse>
</soap:Body>
</soap:Envelope>
I found this post very useful. Its a good tip in general: add a swc to enable Flex classes in flash.
Is there a reason you don't want to use the flex libraries? From what I understand using only the components you need into your application should not cause you any performance issues.
However take a look at: http://alducente.wordpress.com/2007/10/27/web-service-in-as3-release-10/
I'm not sure if it is the best, but it has been recommended to e by one of my co-workers.
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