I am in the process of evaluating Flex for a series of applications for a large financial services company. We intend to make significant use of Web Services. I have had trouble using the <mx:WebService> tag but not using the WebService API. Basically, the WebService API works and the tag doesn't. I am sure that I am missing something, being new to Flex, so I am asking for some guidance.
I carved up the FlexSDK sample called restaurant - I am using Adobe's web service, so, everyone should be able to copy the following code and experience the same issue. In the following, pressing the "WebService (No Tag)" button successfully round-trips with the Adobe web service. Pressing the "WebService (Tag)" does not. I hope someone can tell me why. Code: <?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";> <mx:Script> <![CDATA[ import mx.controls.Alert; import mx.rpc.soap.mxml.WebService; import mx.rpc.AbstractService; import mx.rpc.events.ResultEvent; import mx.rpc.events.FaultEvent; import mx.rpc.AsyncToken; import util.TokenResponder; [Bindable] private var restaurant:Object; [Bindable] private var description:String = new String(""); public function doItNoTag(idString:String):void { var id:int = parseInt(idString); var token: AsyncToken = AsyncToken (getRestaurantService().getRestaurant(id)); token.addResponder(new TokenResponder (getDescription, "Description Error")); } private function getDescription (event:ResultEvent):void { if (event.result != null) { restaurant = event.result; description = restaurant.description; } else { restaurant = null; } } private static var restaurantService:AbstractService; public static function getRestaurantService ():AbstractService { if (restaurantService == null) { var ws:WebService = new WebService(); ws.wsdl = "http://www.adobe.com/go/flex_restaurant_restaurant_service?wsdl";; ws.useProxy = false; ws.showBusyCursor = true; ws.loadWSDL(); restaurantService = ws; } return restaurantService; } ]]> </mx:Script> <mx:WebService id="WS" wsdl="http://www.adobe.com/go/flex_restaurant_restaurant_service?wsdl"; fault="Alert.show(event.fault.faultString), 'Error'"> <mx:operation name="getRestaurant" resultFormat="object"> <mx:request> <restaurantId>{restaurantId.text}</restaurantId> </mx:request> </mx:operation> </mx:WebService> <mx:Panel title="WebService Test" height="75%" width="75%" paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10"> <mx:Label width="100%" color="blue" text="Enter restaurant id:"/> <mx:TextInput id="restaurantId" text="53"/> <mx:Button label="WebService (No Tag)" click="doItNoTag(restaurantId.text)"/> <mx:Button label="WebService (Tag)" click="WS.getRestaurant.send()"/> <mx:TextArea width="100%" text="Restaurant Description: {description}"/> <mx:TextArea width="100%" text="Restaurant Description (Tag): {WS.getRestaurant.lastResult.Restaurant.description}"/> </mx:Panel> </mx:Application> Code for the util.TokenResponder class (copied directly from the Adobe sample): ////////////////////////////////////////////////////////////////////// ////////// // // Copyright (C) 2003-2006 Adobe Macromedia Software LLC and its licensors. // All Rights Reserved. // The following is Sample Code and is subject to all restrictions on such code // as contained in the End User License Agreement accompanying this product. // If you have received this file from a source other than Adobe, // then your use, modification, or distribution of it requires // the prior written permission of Adobe. // ////////////////////////////////////////////////////////////////////// ////////// package util { import mx.controls.Alert; import mx.rpc.IResponder; import mx.rpc.events.FaultEvent; /** * A simple responder that will call the result function specified but * handles any fault by simply raising an Alert with the specified title. */ public class TokenResponder implements IResponder { private var resultHandler:Function; private var faultTitle:String; public function TokenResponder(result:Function, faultTitle:String=null) { super(); resultHandler = result; this.faultTitle = faultTitle; } public function result(data:Object):void { resultHandler(data); } public function fault(info:Object):void { //the info object from an AsyncToken is always a FaultEvent Alert.show(FaultEvent(info).fault.toString(), faultTitle); } } } -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
