AS3 webserive: load stock data using webservice

[ 2009-08-18 09:50:00 | Author: liuhuan ]

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The stockquote webserivce enables us to get real stock data, which we can use in flash to create a stock information application.

WS url: http://www.webservicex.net/stockquote.asmx

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uploads/200908/18_092151_main.swf

Here we explore how to access webservice in Actionscript 3.0:

Quote

package {
 import flash.display.*;
 import flash.events.*;
 import flash.net.*;
 import fl.controls.ComboBox;
 import flash.text.TextField;
 import flash.text.TextFieldAutoSize;

 public class Main extends Sprite {
 private var tf:TextField;
 private var cb:ComboBox;
 private var myData:Object = new Object();
 public function Main():void {
 cb = new ComboBox();
 cb.prompt = "Select a company Symbol for Stock quote";
 cb.addItem( { label: "Johnson & Johnson", data:"JNJ" } );
 cb.addItem( { label: "Procter & Gamble", data:"PG" } );
 cb.addItem( { label: "Best Buy", data:"BBY" } );
 cb.addItem( { label: "Coca-Cola", data:"KO" } );
 cb.addItem( { label: "Merck & Co., Inc.", data:"MRK" } );
 cb.addItem( { label: "Nestle SA Reg Shs. Ser. B Spons", data:"NSRGY" } );
 cb.addItem( { label: "NIKE", data:"NKE" } );
 cb.addEventListener(Event.CHANGE, onSelected);
 cb.width = 300;
 cb.move(10, 10);
 addChild(cb);
 tf = new TextField();
 tf.x = 10;
 tf.y = 60;
 tf.width = 500;
 tf.wordWrap = true;
 tf.multiline = true;
 tf.autoSize = TextFieldAutoSize.LEFT;
 addChild(tf);
 tf.htmlText = "Please Select a company Symbol above for Stock quote..."
 }
 private function onSelected(e:Event):void {
 tf.htmlText = ""+cb.selectedItem.label+" ";
 var request:URLRequest=createRequest();
 URLVariables(request.data).symbol=cb.selectedItem.data;
 var loader:URLLoader=new URLLoader;
 loader.addEventListener(Event.COMPLETE, onComplete);
 loader.addEventListener(IOErrorEvent.IO_ERROR, onError);
 loader.load(request);
 }
 private function onComplete(e:Event):void {
 var xml_source:XML = new XML(e.currentTarget.data);
 var xml:XML = new XML(xml_source.toString());
 var i:int = 0;
 var xmldata:XML;
 myData.stockData = [];
 for each (xmldata in xml.*) {
 trace(xmldata);
 myData.stockData[i] = {};
 myData.stockData[i].Symbol = xmldata.Symbol;
 myData.stockData[i].Last = xmldata.Last;
 myData.stockData[i].Date = xmldata.Date;
 myData.stockData[i].Time = xmldata.Time;
 myData.stockData[i].Change = xmldata.Change;
 myData.stockData[i].Open = xmldata.Open;
 myData.stockData[i].High = xmldata.High;
 myData.stockData[i].Low = xmldata.Low;
 myData.stockData[i].Volume = xmldata.Volume;
 myData.stockData[i].MktCap = xmldata.MktCap;
 myData.stockData[i].PreviousClose = xmldata.PreviousClose;
 myData.stockData[i].PercentageChange = xmldata.PercentageChange;
 myData.stockData[i].AnnRange = xmldata.AnnRange;
 myData.stockData[i].Earns = xmldata.Earns;
 myData.stockData[i].Name = xmldata.Name;
 i++;
 }
 tf.htmlText += "Symbol:"+myData.stockData[0].Symbol+" ";
 tf.htmlText += "Last:"+myData.stockData[0].Last+" ";
 tf.htmlText += "Date:"+myData.stockData[0].Date+" ";
 tf.htmlText += "Time:"+myData.stockData[0].Time+" ";
 tf.htmlText += "Change:"+myData.stockData[0].Change+" ";
 tf.htmlText += "Open:"+myData.stockData[0].Open+" ";
 tf.htmlText += "High:"+myData.stockData[0].High+" ";
 tf.htmlText += "Low:"+myData.stockData[0].Low+" ";
 tf.htmlText += "Volume:"+myData.stockData[0].Volume+" ";
 tf.htmlText += "MktCap:"+myData.stockData[0].MktCap+" ";
 tf.htmlText += "PreviousClose:"+myData.stockData[0].PreviousClose+" ";
 tf.htmlText += "PercentageChange:"+myData.stockData[0].PercentageChange+" ";
 tf.htmlText += "AnnRange:"+myData.stockData[0].AnnRange+" ";
 tf.htmlText += "Earns:"+myData.stockData[0].Earns+" ";
 tf.htmlText += "Name:"+myData.stockData[0].Name+" ";
 }
 private function onError(e:Event):void {
 trace("error occurs");
 }
 private function createRequest():URLRequest {
 var request:URLRequest=new URLRequest('http://www.webservicex.net/stockquote.asmx/GetQuote');
 var variables:URLVariables=new URLVariables;
 request.data=variables;
 return request;
 }
 }
}

Endpoint

http://www.webservicex.net/stockquote.asmx

Disco

http://www.webservicex.net/stockquote.asmx?Disco

WSDL Location

http://www.webservicex.net/stockquote.asmx?wsdl