[AS3]FlashProxy-利用Flash来实现js跨域访问数据

发布:kinglong | 发布时间: 2008年12月23日

[AS3]FlashProxy-利用Flash来实现js跨域访问数据

FlashProxy类

/** * @author Kinglong * @version 0.5 */ package com.klstudio.upload { 	 	import flash.display.*; 	import flash.events.*; 	import flash.net.*; 	import flash.external.ExternalInterface; 	import flash.system.Security;	 	public class FlashProxy extends Sprite{	 		 		private var _params:Object; 		private var _loader:URLLoader; 		private var _method:String; 		private var _id:String; 		private var _parse:Boolean; 		private var _inited:Boolean; 		private var _data:String; 		private var _xml:XML; 		 		public function FlashProxy(){ 			Security.allowDomain('*'); 			_inited = false; 			_data = ""; 			_parse = true; 			_method = URLRequestMethod.POST; 			_loader = new URLLoader(); 			configureListeners(_loader); 		} 		 		public function load(page:String,params:Object=null):void{ 			if(!_inited){ 				showError("FlashProxy还没有初始化!"); 			} 			if(page == null || page == undefined){ 				showError("page参数为必须的!"); 				return; 			} 			var vars:URLVariables = new URLVariables(); 			vars.tmp = Math.random(); 			if(params != null){				 				for(var key in params){ 					if(key == "tmp"){ 						continue; 					} 					vars[key] = params[key]; 				} 			}			 			_loader.dataFormat = URLLoaderDataFormat.TEXT; 			var request:URLRequest = new URLRequest(page); 			request.method = _method; 			request.data = vars; 			_loader.load(request); 		} 		 		public function setParse(value:Boolean):void{ 			_parse = value; 		} 		 		public function setMethod(value:String):void{ 			if(value == null || value == undefined){ 				return; 			} 			value = StringUtil.trim(value); 			if(value.toLocaleUpperCase() == URLRequestMethod.POST || value.toLocaleUpperCase() == URLRequestMethod.GET){ 				_method = value.toLocaleUpperCase(); 			}			 		} 		 		public function getData():String{ 			return _data; 		} 		 		private function configureListeners(dispatcher:IEventDispatcher):void { dispatcher.addEventListener(Event.COMPLETE, completeHandler); dispatcher.addEventListener(Event.OPEN, openHandler); dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler); dispatcher.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler); dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler); dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler); } 		 		private function completeHandler(event:Event):void { 			_data = _loader.data; 			if(_parse){ 				try{ 					_xml = new XML(_data);					 				}catch(error:Error){ 					_parse = false; 					_xml = null; 					Tracer.debug("xml解析错误!"); 				} 			} ExternalInterface.call(_id+".onComplete"); } private function openHandler(event:Event):void { ExternalInterface.call(_id+".onOpen"); } private function progressHandler(event:ProgressEvent):void { 			 			ExternalInterface.call(_id+".onProgress",event.bytesLoaded,event.bytesTotal); } private function securityErrorHandler(event:SecurityErrorEvent):void { showError("读取失败!\n 不能跨域访问,可能是你在web服务端根目录下没有放置crossdomain.xml文件!"); } private function httpStatusHandler(event:HTTPStatusEvent):void { showError("读取失败!\n HTTP错误代码为:"+event.status); } private function ioErrorHandler(event:IOErrorEvent):void { showError("读取失败!\n 可能是因为下列原因:\n 1.网络忙,请稍候重试!\n 2.访问的web服务端没有开启!"); } 		 		public function alert(msg:String):void{ 			navigateToURL(new URLRequest(msg)); 		} 		 		public function showError(msg:String):void{			 			ExternalInterface.call(_id+".onError",msg); 		} 	} 	 }

标签:

flash js 数据

发布:kinglong | 分类:Flash技术 | 评论:5 | 引用:0 | 浏览: | TrackBack引用地址

相关文章:
[AS3]纯AS代码实现可预览本地图片的flash上传客户端  (2008-12-11 15:26:19)
从D2归来-有关Flash Player 10一些技术细节  (2008-12-1 9:17:3)
有关flash无法读取FireFox中Cookie的Bug解决方法  (2008-11-25 11:5:50)
[Socket+AMF3]Socket安全策略问题的解决  (2008-11-20 11:48:42)
[Socket+AMF3]给合Flash的Socket和AMF3来尝试开发web游戏引擎  (2008-11-19 10:57:52)
[Socket+AMF3]对Flash的Socket和AMF3的研究心得  (2008-11-18 15:22:25)
[AS3]Flash CS4的习作-3dbox  (2008-11-13 16:1:22)
flash player 10给我们带来了什么功能  (2008-11-10 15:29:47)
[转载]Flash Player 10 中的RTMFP(实现P2P)  (2008-11-10 13:57:57)
推荐SWFUpload上传工具  (2008-11-5 11:0:11)

1.guest
应该是： showError("读取失败!\n 不能跨域访问,可能是你" + "没有" + "在web服务端根目录下放置crossdomain.xml文件!"); 吧?
kinglong 于 2008-12-23 20:26:54 回复
少写了一个字,哈哈
2008-12-23 19:31:16 回复该留言