不使用Flex，如何从AS3访问SOAP Web服务？

Question

有没有最好的库/包/类可以在不使用Flex框架的情况下从ActionScript 3调用SOAP Web服务？

- Lars Blåsjö

Answer 1

建议阅读： 《Advanced ActionScript 3 with Design Patterns》 作者：Joey Lott 和 Danny Patterson 请前往第15章获取更好、更完整的解决方案。

我的示例代码：

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请求：

<?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响应：

<?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>

- Jason

Answer 2

我发现这篇文章非常有用。 总的来说，这是一个不错的提示：添加一个 swc 来启用 Flash 中的 Flex 类。

- David Salzer

Answer 3

你不想使用flex库有什么原因吗？据我所知，将你需要的组件直接引入应用程序中不会导致任何性能问题。

但是请看一下：http://alducente.wordpress.com/2007/10/27/web-service-in-as3-release-10/

我不确定它是否是最好的选择，但我的一个同事向我推荐了它。

- jaywellings

---

谢谢，Alducente的东西看起来对我很有用。稍晚一些的版本可以在这里找到：http://labs.alducente.com/gophr/ - Lars Blåsjö