Flex读取XML总结
1. Model标签形式
首先声明Model标签，
<mx:Model id="model" source="config.xml"/>
<config> <username>Flex</username> <password>123456</password> </config> <config> <username>Flex</username> <password>123456</password></config>?
Flex代码
<mx:Label text="{model.username}"/>?
<mx:Label text="{model.username}"/>
那么，只需要在初始化事件中直接调用即可，例如：model.username, model.password即可取到想要的值。
?
2 URLLoader
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="init()"> <mx:Script> <![CDATA[ import mx.controls.Alert; private function init():void { var urlrequest:URLRequest=new URLRequest("test.xml"); var loader:URLLoader=new URLLoader(); loader.load(urlrequest); loader.addEventListener(Event.COMPLETE, completehandler); } private function completehandler(event:Event):void { var xml:XML=new XML(event.target.data); Alert.show(xml.toString()); } ]]> </mx:Script> </mx:Application> ?3? FileStream
private function readXML1():void{ var xmlFile:File = new File("file path"); var stream:FileStream = new FileStream(); stream.open(xmlFile, FileMode.READ); var xml:XML = XML(stream.readUTFBytes(stream.bytesAvailable)); stream.close();}Flex写XML的方法:public static function writeXMLFile(xml:XML):void{ var stream:FileStream = new FileStream(); var xmlFile:File = new File("file path"); var outputString:String = '<?xml version="1.0" encoding="utf-8"?>\n'; outputString += xml.toXMLString(); outputString = outputString.replace(/\n/g, File.lineEnding); stream = new FileStream(); stream.open(xmlFile, FileMode.WRITE); stream.writeUTFBytes(outputString); stream.close();}??可以通过WebService，HttpService以及RemoteObject等方式调用Java或C#等完成文件的读写操作。
Flex端：
<mx:Script> javaService.getOutStream(xml);</mx:Script><mx:RemoteObject id="javaService" destination="fileOutput" showBusyCursor="true"result="Alert.show('设置成功，请刷新浏览器！')" fault="Alert.show('文件输出错误！')"/>?Java端：
package util;import java.io.BufferedWriter;import java.io.File;import java.io.FileOutputStream;import java.io.OutputStreamWriter;public class setView {public boolean getOutStream(String str) { try { File f = new File("webapps/test/xml/example.xml"); FileOutputStream fos = new FileOutputStream(f, false); OutputStreamWriter osw = new OutputStreamWriter(fos,"UTF-8"); BufferedWriter bw = new BufferedWriter(osw); bw.write(str); bw.flush(); bw.close(); osw.close(); fos.close(); return true; } catch (Exception e) { e.printStackTrace(); return false; }}}?config.xml添加配置
<destination id="fileOutput" channels="my-amf"> <properties> <source>util.setView</source> </properties> </destination>?