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POProcessing XML in flex3
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  1. POProcessing XML in flex3
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    copied!<p>First time here asking a question and still learning on how to format things better... so sorry about the format as it does not look too well. I have started learning flex and picked up a book and tried to follow the examples in it. However, I got stuck with a problem. I have a jsp page which returns xml which basically have a list of products. I am trying to parse this xml, in other words go through products, and create Objects for each product node and store them in an ArrayCollection. The problem I believe I am having is I am not using the right way of navigating through xml.</p> <p>The xml that is being returned from the server looks like this:</p> <pre><code>&lt;?xml version="1.0" encoding="ISO-8859-1"?&gt;&lt;result type="success"&gt; &lt;products&gt; &lt;product&gt; &lt;id&gt;6&lt;/id&gt; &lt;cat&gt;electronics&lt;/cat&gt; &lt;name&gt;Plasma Television&lt;/name&gt; &lt;desc&gt;65 inch screen with 1080p&lt;/desc&gt; &lt;price&gt;$3000.0&lt;/price&gt; &lt;/product&gt; &lt;product&gt; &lt;id&gt;7&lt;/id&gt; &lt;cat&gt;electronics&lt;/cat&gt; &lt;name&gt;Surround Sound Stereo&lt;/name&gt; &lt;desc&gt;7.1 surround sound receiver with wireless speakers&lt;/desc&gt; &lt;price&gt;$1000.0&lt;/price&gt; &lt;/product&gt; &lt;product&gt; &lt;id&gt;8&lt;/id&gt; &lt;cat&gt;appliances&lt;/cat&gt; &lt;name&gt;Refrigerator&lt;/name&gt; &lt;desc&gt;Bottom drawer freezer with water and ice on the door&lt;/desc&gt; &lt;price&gt;$1200.0&lt;/price&gt; &lt;/product&gt; &lt;product&gt; &lt;id&gt;9&lt;/id&gt; &lt;cat&gt;appliances&lt;/cat&gt; &lt;name&gt;Dishwasher&lt;/name&gt; &lt;desc&gt;Large capacity with water saver setting&lt;/desc&gt; &lt;price&gt;$500.0&lt;/price&gt; &lt;/product&gt; &lt;product&gt; &lt;id&gt;10&lt;/id&gt; &lt;cat&gt;furniture&lt;/cat&gt; &lt;name&gt;Leather Sectional&lt;/name&gt; &lt;desc&gt;Plush leather with room for 6 people&lt;/desc&gt; &lt;price&gt;$1500.0&lt;/price&gt; &lt;/product&gt; &lt;/products&gt;&lt;/result&gt; </code></pre> <p>And I have flex code that tries to iterate over products like following:</p> <pre><code>private function productListHandler(e:JavaFlexStoreEvent):void { productData = new ArrayCollection(); trace(JavaServiceHandler(e.currentTarget).response); for each (var item:XML in JavaServiceHandler(e.currentTarget).response..product ) { productData.addItem( { id:item.id, item:item.name, price:item.price, description:item.desc }); } } </code></pre> <p>with trace, I can see the xml being returned from the server. However, I cannot get inside the loop as if the xml was empty. In other words, JavaServiceHandler(e.currentTarget).response..product must be returning nothing. Can someone please help/point out what I could be doing wrong.</p> <p>My JavaServiceHandler class looks like this:</p> <pre><code>package com.wiley.jfib.store.data { import com.wiley.jfib.store.events.JavaFlexStoreEvent; import flash.events.Event; import flash.events.EventDispatcher; import flash.net.URLLoader; import flash.net.URLRequest; public class JavaServiceHandler extends EventDispatcher { public var serviceURL:String = ""; public var response:XML; public function JavaServiceHandler() { } public function callServer():void { if(serviceURL == "") { throw new Error("serviceURL is a required parameter"); return; } var loader:URLLoader = new URLLoader(); loader.addEventListener(Event.COMPLETE, handleResponse); loader.load(new URLRequest(serviceURL)); // var httpService:HTTPService = new HTTPService(); // httpService.url = serviceURL; // httpService.resultFormat = "e4x"; // httpService.addEventListener(Event.COMPLETE, handleResponse); // httpService.send(); } private function handleResponse(e:Event):void { var loader:URLLoader = URLLoader(e.currentTarget); response = XML(loader.data); dispatchEvent(new JavaFlexStoreEvent(JavaFlexStoreEvent.DATA_LOADED) ); // var httpService:HTTPService = HTTPService(e.currentTarget); // response = httpService.lastResult.product; // dispatchEvent(new JavaFlexStoreEvent(JavaFlexStoreEvent.DATA_LOADED) ); } } } </code></pre> <p>Even though I refer to this as mine and it is not in reality. This is from a Flex book as a code sample which does not work, go figure.</p> <p>Any help is appreciated.</p> <p>Thanks</p> <p>john</p>
 

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