Flex的XML读写

来源：互联网发布：剑网三七月十五数据编辑：程序博客网时间：2024/04/28 12:00

package com.copote.fileOperations{import flash.events.Event;import flash.events.IOErrorEvent;import flash.filesystem.File;import flash.filesystem.FileMode;import flash.filesystem.FileStream;/** * 对ConfigXMl进行操作 * */public class ConfigXmlOperation{public function ConfigXmlOperation(){}static public var configXML:XML = null;private static const fileName:String = File.applicationDirectory.resolvePath("config-context.xml").nativePath;static public function readConfigXml():void{var file:File=new File(fileName);var fileStream:FileStream = new FileStream();fileStream.addEventListener(Event.COMPLETE, function():void{configXML = XML(fileStream.readUTFBytes(fileStream.bytesAvailable));fileStream.close();});fileStream.openAsync(file, FileMode.READ);}static public function writeConfigXml(xml:XML):void{var xmlHead:String = '<?xml version="1.0" encoding="utf-8" ?>'var stream:FileStream = new FileStream();var file:File = new File(fileName);                        stream.openAsync(file, FileMode.WRITE);stream.addEventListener(IOErrorEvent.IO_ERROR,function():void{stream.close();//这个是用来放置用户磁盘保护这样就会报错,所以会监视,关闭});var xmlStr:String = xml.toString();var pattern:RegExp = /\n/g;xmlStr=xmlStr.replace(pattern, "\r\n");try{stream.writeUTFBytes(String(xmlHead+"\r\n"+xmlStr));}catch (e:Error){trace(e);}finally{stream.close();}}}

自己写的flex文件操作的工具类,主要是读写XML的,这里主要多了一个流保存,监听,然后关闭,这样就可以逃过这个操作了,

如果没有做这个监听,紧紧是finally,如果磁盘是管理员权限,但是用户没有管理员权限,会卡死在这里,我不知道为什么