flash上传文件的actionscript代码

    import flash.net.URLRequest;
    import flash.net.FileFilter;
    import flash.display.Sprite;
    import flash.events.*;



    var fileRef = new FileReference();
    var fileListener = new Object();
    var totalBytes:Number = 0;
    var uploadedBytes:Number = 0;

    var acceptFileType:String = getFlashVars("acceptFileType");
    var comJsFun:String=getFlashVars("ComJsFun");
    //this.tbFilePath.text = comJsFun;

    var uploadURL:URLRequest = new URLRequest();
    var xmlRequest:URLRequest = new URLRequest();
    var xmlLoader:URLLoader = new URLLoader();

    //初始化系统
    function init() {
        this.mcWaterStyle.visible = false;
        this.mcFilePlayer.visible = false;
        this.progressBar.visible = false;

//设置按钮文字大小。
        var myFormat = new TextFormat();
        myFormat.size = 12;
        this.btBrowser.setStyle("textFormat", myFormat);
        this.btUpload.setStyle("textFormat",myFormat);
        this.tbFilePath.setStyle("textFormat", myFormat);

        this.mcWaterStyle.style0.setStyle("textFormat", myFormat);
        this.mcWaterStyle.style1.setStyle("textFormat", myFormat);
        this.mcWaterStyle.style2.setStyle("textFormat", myFormat);
        this.uploadInfo.setStyle("textFormat", myFormat);

        if(acceptFileType==""){
            /*从外部获取上传附加的文件类型。*/
            xmlRequest = new URLRequest("swffileupload.xml");
//var loadVidateFile:URLRequest = new URLRequest("http://192.168.18.4/admin/article/x.aspx");
            xmlLoader.load(xmlRequest);
            xmlLoader.addEventListener(Event.COMPLETE,loaderHandler);
        }
    }

    init();

    //按钮事件
    this.btBrowser.addEventListener(MouseEvent.CLICK, browseHandler);
    this.btUpload.addEventListener(MouseEvent.CLICK, UploadHandler);

    fileRef.addEventListener(Event.SELECT,selectHandler);
    fileRef.addEventListener(Event.CANCEL, cancelHandler);
    fileRef.addEventListener(Event.OPEN, openHandler);
    fileRef.addEventListener(Event.COMPLETE, completeHandler);
    fileRef.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA,uploadCompleteDataHandler)
    fileRef.addEventListener(ProgressEvent.PROGRESS, progressHandler);

    fileRef.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler);
    fileRef.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
    fileRef.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);


    //浏览按钮事件
    function browseHandler(event:MouseEvent):void {
        fileRef.browse(browseGetTypes());
    }
    function browseGetTypes():Array {
        var allTypes:Array = new Array(browseGetFileTypeFilter());
        return allTypes;
    }

    function browseGetFileTypeFilter():FileFilter {

        if(acceptFileType!=""){
            var arr = acceptFileType.split("|");
            var FileExtension = "";
            for(var i=0;i<arr.length;i++){
                if (arr[i] == "")
                    continue;
                if(i==0)
                    FileExtension = "*."+arr[i];
                else
                    FileExtension = FileExtension+";*."+arr[i];
            }
            return new FileFilter("文件格式("+FileExtension+")", ""+FileExtension+"");
        }else{
            return new FileFilter("所有文件(*.*)","*.*");
        }

//return new FileFilter("所有文件(*.*)","*.*");
    }

    //加载上传配置事件
    function loaderHandler(event:Event):void {
        var myXML:XML = new XML(xmlLoader.data);
    //myXML = XML();
    acceptFileType = myXML.child("Upload").ContontFileStyle;
    trace("--"+myXML.child("Upload").ContontFileStyle+"--");
    if(this.uploadInfo.text=="")
        this.uploadInfo.text = "允许的格式："+myXML.child("Upload").ContontFileStyle;
    }

    //选择文件事件
    function selectHandler(event:Event):void{
        this.uploadInfo.text = "";
    this.mcWaterStyle.visible = false;
    this.mcFilePlayer.visible = false;

    if (fileRef.size > 0){
        totalBytes = fileRef.size;
        this.tbFilePath.text =  fileRef.name+ "[" + this.getSizeType(totalBytes) + "]";
        var fileExtName = fileRef.name.substring(fileRef.name.lastIndexOf(".")+1);
        switch(fileExtName.toLowerCase()){
            case "jpg":
            case "png":
            case "jpeg":
            case "gif":
            case "bmp":
                this.mcWaterStyle.visible = true;
                break;
            case "flv":
                this.mcFilePlayer.visible = true;
                this.mcFilePlayer.mcWidth.text = 410;
                this.mcFilePlayer.mcHeight.text = 370;
                break;
            case "swf":
                this.mcFilePlayer.visible = true;
                this.mcFilePlayer.mcWidth.text = 550;
                this.mcFilePlayer.mcHeight.text = 400;
                break;
            case "rm":
            case "rmvb":
            case "mp3":
            case "avi":
            case "mpg":
            case "mpeg":
            case "asf":
            case "wmv":
            case "wma":
                this.mcFilePlayer.visible = true;
                this.mcFilePlayer.mcWidth.text = 550;
                this.mcFilePlayer.mcHeight.text = 400;
                break;
            default:
                this.mcWaterStyle.visible = false;
                this.mcFilePlayer.visible = false;
                break;
        }
    }else{
        this.uploadInfo.text = "错误：您没有选择文件！";
    }
    }

    //上传过程中取消
    function cancelHandler(event:Event):void{
        this.progressBar.visible = false;
    };

    //当上载或下载操作开始时
    function openHandler(event:Event):void{
        this.tbFilePath.visible = false;
    this.mcWaterStyle.visible = false;
    this.mcFilePlayer.visible = false;
    this.btBrowser.visible = false;
    this.btUpload.label = "取消";
    this.progressBar.visible = true;
    };

    //点击伤
    function UploadHandler(event:MouseEvent):void{
        if (this.btUpload.label=="上传"){
        var WaterMarkStyleP:String = "";
        if(this.mcWaterStyle.style0.selected == true)
            WaterMarkStyleP = "0";
        else if(this.mcWaterStyle.style1.selected == true)
            WaterMarkStyleP = "1";
        else if(this.mcWaterStyle.style2.selected == true)
            WaterMarkStyleP = "2";

        var mcFilePlayerP:String="&width="+this.mcFilePlayer.mcWidth;
        mcFilePlayerP += "&height="+this.mcFilePlayer.mcHeigth;

        if(this.mcFilePlayer.mcAutoYes.selected == true)
            mcFilePlayerP += "&auto=true";
        else if(this.mcFilePlayer.mcAutoNo.selected == true)
            mcFilePlayerP += "&auto=false";
        uploadURL.url="http://localhost:11452/UploadFile.aspx?type=1";
//uploadURL.url="Upload_File_SWF.aspx?WaterMarkStyle="+WaterMarkStyleP+mcFilePlayerP;
        fileRef.upload(uploadURL);
    }else if(this.btUpload.label=="取消"){
        this.tbFilePath.visible = true;
        this.mcWaterStyle.visible = false;
        this.mcFilePlayer.visible = false;
        this.btBrowser.visible = true;
        this.btUpload.label = "上传";
        this.progressBar.visible = false;
        this.uploadInfo.text="";
    }else if(this.btUpload.label=="重新上传"){
        this.tbFilePath.visible = true;
        this.mcWaterStyle.visible = false;
        this.mcFilePlayer.visible = false;
        this.btBrowser.visible = true;
        this.btUpload.label = "上传";
        this.progressBar.visible = false;
    }
    }

    //在文件上载或下载操作期间定期调用
    function progressHandler(event:ProgressEvent):void{
//var fileRef:FileReference = FileReference(event.target);
        if(event.bytesLoaded==event.bytesTotal){
        this.uploadInfo.text= "正在转移数据，请稍后--"+getSizeType(event.bytesLoaded)+"/"+getSizeType(event.bytesTotal);
    }else{
        this.progressBar.mcMask.width = (event.bytesLoaded/event.bytesTotal)*this.progressBar.mcLoaded.width;
        this.uploadInfo.text="上传文件中，请等待--"+getSizeType(event.bytesLoaded)+"/"+getSizeType(event.bytesTotal);
    }
    }

    function completeHandler(event:Event):void {
//trace("completeHandler: " + event);
        this.tbFilePath.visible = true;
    this.tbFilePath.text = "";
    this.mcWaterStyle.visible = false;
    this.mcFilePlayer.visible = false;
    this.btBrowser.visible = true;
    this.btUpload.label = "上传";
    this.progressBar.visible = false;
    //this.uploadInfo.text = "上传成功！";
    }

    function uploadCompleteDataHandler(event:DataEvent):void {
        if(event.data.indexOf("|")!=-1){
        var fileInfoArr = event.data.split("|");
        if(fileInfoArr[0].toLowerCase()=="true"){
            this.uploadInfo.text = "上传成功："+fileInfoArr[1]+"！";
            if(comJsFun!=""){
//ExternalInterface.call("UploadForEditor","hh");
                ExternalInterface.call("UploadForEditor",event.data.replace("true|",""));
//this.tbFilePath.text = event.data;
            }
        }else{
            this.uploadInfo.text = "上传失败："+EncodeUtf8(fileInfoArr[1])+"！";
        }
    }



    trace("uploadCompleteData: " + event.data);
    }



    //错误事件
    function httpStatusHandler(event:HTTPStatusEvent):void {
        trace("httpStatusHandler: " + event);
    this.mcWaterStyle.visible = false;
    this.mcFilePlayer.visible = false;
    this.uploadInfo.text="HTTP错误： " +  event;
    }
    function ioErrorHandler(event:IOErrorEvent):void {
        trace("ioErrorHandler: " + event);
    this.mcWaterStyle.visible = false;
    this.mcFilePlayer.visible = false;
    this.uploadInfo.text="IO错误： " +  event;
    }
    function securityErrorHandler(event:SecurityErrorEvent):void {
        trace("openHandler: " + event);
    this.mcWaterStyle.visible = false;
    this.mcFilePlayer.visible = false;
    this.uploadInfo.text="IO安全设置错误： " +  event;
    }







    /*--------------------以下为常用函数-------------
     ---------------------------------------------*/
    //处理文件大小表示方法
    function getSizeType(s)
    {
        var danwei = ["Byte","KB","MB","GB" ];
        var d = 0;
        while ( s >= 900 )
        {
            s = Math.round(s*100/1024)/100;
            d++;
        }
        return s+danwei[d];
    }

    function getFlashVars(parName){
        var parValue:String=stage.loaderInfo.parameters[parName];
        if(parValue==null)
            return "";
        else
            return parValue;
    }



    //转换乱码
    function EncodeUtf8(str : String):String {
        var oriByteArr : ByteArray = new ByteArray();
        oriByteArr.writeUTFBytes(str);
        var tempByteArr : ByteArray = new ByteArray();
        for (var i = 0; i<oriByteArr.length; i++) {
            if (oriByteArr[i] == 194) {
                tempByteArr.writeByte(oriByteArr[i+1]);
                i++;
            } else if (oriByteArr[i] == 195) {
                tempByteArr.writeByte(oriByteArr[i+1] + 64);
                i++;
            } else {
                tempByteArr.writeByte(oriByteArr[i]);
            }
        }
        tempByteArr.position = 0;
        return tempByteArr.readMultiByte(tempByteArr.bytesAvailable,"chinese");
//return tempByteArr.readMultiByte(tempByteArr.bytesAvailable,"chinese");
    }

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