That should work, I use dynamic urls with HTTPService regularly. One suggestion, don't use binding. Instead, in the function where you invoke service.send(), set the url there.
Additionally, unless you have a very special use case, you do not want resultFormat="xml", you want resultFormat="e4x". "xml" is the old AS object, and lacks most of the functionality available in e4x. _____ From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of anitha2324 Sent: Saturday, March 07, 2009 2:35 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] how to call dynamic servlet Hi All, i have made a servelt which returns details in xml format , this is servlet is working fine if am calling it from flex in static way like this <mx:HTTPService id="topSenders" useProxy="false" resultFormat="xml" method="POST" url="http://localhost: <http://localhost:8080/Application/topSenderServlet?TYPE=4&USER_ID=12> 8080/Application/topSenderServlet?TYPE=4&USER_ID=12" result="serv_result(event);"/> but if i tried to call the servlet like this <mx:HTTPService id="topSenders" useProxy="false" resultFormat="xml" method="POST" url="{servletURL}" result="serv_result(event);"/> then it is not working , am not getting any error here is the full code for my mxml file <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe. <http://www.adobe.com/2006/mxml> com/2006/mxml" layout="absolute" creationComplete="init()"> <mx:Script> <![CDATA[ import flash.net.sendToURL; import mx.controls.Alert; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; import mx.rpc.xml.SimpleXMLDecoder; import mx.controls.Button; import mx.controls.Label; import mx.collections.ArrayCollection; [Bindable] public var expenses:ArrayCollection; [Bindable] public var userId:int; [Bindable] public var servletURL:String; private function init():void{ userId = 12; servletURL="http://localhost: <http://localhost:8080/Application/topSenderServlet?TYPE=4&USER_ID=> 8080/Application/topSenderServlet?TYPE=4&USER_ID="+userId; Alert.show(servletURL); topSenders.send(); } private function serv_result(evt:ResultEvent):void { /* Convert XMLNode to XMLDocument. */ var xmlStr:String = evt.result.toString(); var xmlDoc:XMLDocument = new XMLDocument(xmlStr); var decoder:SimpleXMLDecoder = new SimpleXMLDecoder(true); var resultObj:Object = decoder.decodeXML(xmlDoc); /* Assign the values... */ expenses = new ArrayCollection(); for(var i:int=0;i<resultObj.top.sender.length;i++){ Alert.show(resultObj.top.sender[i].phone); } } ]]> </mx:Script> <!--<mx:HTTPService id="topSenders" useProxy="false" resultFormat="xml" method="POST" url="http://localhost: <http://localhost:8080/Application/topSenderServlet?TYPE=4&USER_ID=12> 8080/Application/topSenderServlet?TYPE=4&USER_ID=12" result="serv_result(event);"/>--> <mx:HTTPService id="topSenders" useProxy="false" resultFormat="xml" method="POST" url="{servletURL}" result="serv_result(event);"/> </mx:Application> thanking you in advance