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Flex上传组件

    博客分类：
  • Flex
FlexFlashJ#SecurityPHP 
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FileUpload.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="initApp()" viewSourceURL="srcview/index.html">
    
    <mx:Script>
        <![CDATA[
        
            /**//*
            
            Examples_FileUpload
            
            Written by:
            Dustin Andrew
            dustin@flash-dev.com
            www.flash-dev.com
            
            */
        
            import mx.states.*;
            import mx.controls.*;
            import mx.managers.*;
            import mx.events.*;
            import flash.events.*;
            import flash.net.*;
            
            private const _strUploadDomain:String = "http://codycodingcowboy.cahlan.com/";
            private const _strUploadScript:String = _strUploadDomain + "files/upload.php";
            
            private var _arrUploadFiles:Array;
            private var _numCurrentUpload:Number = 0;
            private var _refAddFiles:FileReferenceList;    
            private var _refUploadFile:FileReference;
            
            private var _winProgress:winProgress;
            
            private function initApp():void ...{
                Security.allowDomain("*");
                _arrUploadFiles = new Array();
            }            
            
            // Called to add file(s) for upload
            private function addFiles():void ...{
                _refAddFiles = new FileReferenceList();
                _refAddFiles.addEventListener(Event.SELECT, onSelectFile);
                _refAddFiles.browse();
            }
            
            // Called to remove selected file(s) for upload
            private function removeFiles():void ...{
                var arrSelected:Array = listFiles.selectedIndices;
                for (var i:Number = 0; i < arrSelected.length; i++) ...{
                    _arrUploadFiles[Number(arrSelected[i])] = null;
                }
                for (var j:Number = 0; j < _arrUploadFiles.length; j++) ...{
                    if (_arrUploadFiles[j] == null) ...{
                        _arrUploadFiles.splice(j, 1);
                        j--;
                    }
                }
                listFiles.dataProvider = _arrUploadFiles;
                listFiles.selectedIndex = 0;
                if (_arrUploadFiles.length == 0) ...{
                    btnUpload.enabled = false;
                } else ...{
                    btnUpload.enabled = true;
                }
            }
            
            // Called when a file is selected
            private function onSelectFile(event:Event):void ...{
                var arrFoundList:Array = new Array();
                // Get list of files from fileList, make list of files already on upload list
                for (var i:Number = 0; i < _arrUploadFiles.length; i++) ...{
                    for (var j:Number = 0; j < _refAddFiles.fileList.length; j++) ...{
                        if (_arrUploadFiles[i].label == _refAddFiles.fileList[j].name) ...{
                            arrFoundList.push(_refAddFiles.fileList[j].name);
                            _refAddFiles.fileList.splice(j, 1);
                            j--;
                        }
                    }
                }
                if (_refAddFiles.fileList.length >= 1) ...{
                    for (var k:Number = 0; k < _refAddFiles.fileList.length; k++) ...{
                        _arrUploadFiles.push(...{label:_refAddFiles.fileList[k].name, data:_refAddFiles.fileList[k]});
                    }
                    listFiles.dataProvider = _arrUploadFiles;
                    listFiles.selectedIndex = _arrUploadFiles.length - 1;
                }                
                if (arrFoundList.length >= 1) ...{
                    Alert.show("The file(s):  • " + arrFoundList.join(" • ") + " ...are already on the upload list. Please change the filename(s) or pick a different file.", "File(s) already on list");
                }
                if (_arrUploadFiles.length == 0) ...{
                    btnUpload.enabled = false;
                } else ...{
                    btnUpload.enabled = true;
                }
            }
            
            
            // Cancel and clear eventlisteners on last upload
            private function clearUpload():void ...{
                _numCurrentUpload = 0;
                _refUploadFile.removeEventListener(ProgressEvent.PROGRESS, onUploadProgress);
                _refUploadFile.removeEventListener(Event.COMPLETE, onUploadComplete);
                _refUploadFile.removeEventListener(IOErrorEvent.IO_ERROR, onUploadIoError);
                _refUploadFile.removeEventListener(SecurityErrorEvent.SECURITY_ERROR, onUploadSecurityError);
                _refUploadFile.cancel();
            }
            
            // Called to upload file based on current upload number
            private function startUpload(booIsFirst:Boolean):void ...{
                if (booIsFirst) ...{
                    _numCurrentUpload = 0;
                }
                if (_arrUploadFiles.length > 0) ...{
                    _winProgress = winProgress(PopUpManager.createPopUp(this, winProgress, true));
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