最近在做大文件上传项目时碰到了很多问题。基于.net的大文件上传组件网上是大把的有。
如
大家可去查询：http://www.baidu.com/s?lm=0&si=&rn=10&ie=gb2312&ct=0&wd=asp%2Enet+%B4%F3%CE%C4%BC%FE%C9%CF%B4%AB&pn=0&ver=0&cl=3&uim=1&usm=0&f=1
这些组件基本上都是基于HttpModule模式的，大部分都存在一个致命的问题：严重消耗内存。
最后没办法，只好采用Flash的FileReference模式去上传。具体我也不是很明白，大家可自己研究。
一、CS相应源码如下：
import flash.net.FileReference;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;//从外部获取也许上传的文件类型var acceptFileType:String = getFlashVars("acceptFileType");//设置上传完毕后执行的js脚本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，默认的字体和大小有点难看。 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); //如果从FlashVars获取的参数acceptFileType（限定上传文件类型）无值，那么访问相应的XML（上传文件类型配置）
if(acceptFileType==""){
//从外部获取上传附加的文件类型。 xmlRequest = new URLRequest("http://www.cnblogs.com/XML/Setting_Article.xml"); 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);//选择文件fileRef.addEventListener(Event.CANCEL, cancelHandler);//上传过程中取消事件fileRef.addEventListener(Event.OPEN, openHandler);//开始上传事件fileRef.addEventListener(Event.COMPLETE, completeHandler);//上传完毕事件fileRef.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA,uploadCompleteDataHandler)//上传数据完毕事件，有点迷惑Event.COMPLETE跟DataEvent.UPLOAD_COMPLETE_DATA的区别fileRef.addEventListener(ProgressEvent.PROGRESS, progressHandler);//上传过程事件，相应的进度条代码在这里了//监听上传过程可能出错的事件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 "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="Upload_File_SWF.aspx?WaterMarkStyle="+WaterMarkStyleP+mcFilePlayerP; fileRef.upload(uploadURL);//此为采用aspx默认方式进行上传的文件地址。如：Upload_File_SWF.aspx此页面我在上传完毕后，直接进行Response.Write("true");那么Flash可在uploadCompleteDataHandler后可后去到true这个数据。以便你进行操作。 }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");}二、相应的上传文件代码(.net)
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.IO;using System.Drawing;using System.Drawing.Imaging;namespace TT.WebManager.Web.Admin.Article{ public partial class Upload_File_SWF : System.Web.UI.Page { string AppPath = ""; string FileURL = "";//文件网络地址 string FileURL2 = "";//文件网络地址,如果加了水印 string FileAppPath = ""; string FileAppPath2 = ""; string sFilePathName = ""; string sFileName = ""; int FileSize = 0; string FileExtName = ""; int WaterMarkStyle = 0; string FileAuto = "true"; int FileWidth = 0; int FileHeigth = 0; protected void Page_Load(object sender, EventArgs e) { TT.WebManager.BLL.Setting bll = new TT.WebManager.BLL.Setting(); bll.Init(false); AppPath = System.Web.HttpContext.Current.Request.PhysicalApplicationPath; WaterMarkStyle = Methods.Req.GetInt("WaterMarkStyle", 0); FileWidth = Methods.Req.GetInt("Width",550); FileHeigth = Methods.Req.GetInt("Heigth", 400); FileAuto = Methods.Req.GetString("Auto"); try { HttpPostedFile postedFile = Request.Files["Filedata"]; sFilePathName = postedFile.FileName; FileSize = postedFile.ContentLength; //===========获取文件的大小 if (FileSize <= 0) { Response.Clear(); Response.Write("false|您没有选择文件！"); Response.End(); } else { sFileName = sFilePathName.Substring(sFilePathName.LastIndexOf("\\") + 1); FileExtName = sFilePathName.Substring(sFilePathName.LastIndexOf(".") + 1); if (IsValidFileType(FileExtName) == false) { Response.Clear(); Response.Write("false|系统禁止上传此格式的文件！"); Response.End(); } else { GotoUploadFile(postedFile); } } } catch { } } protected void GotoUploadFile(HttpPostedFile postedFile) { string NewFileName = DateTime.Now.ToString("yyyyMMddhhmmss") + FileSize + "." + FileExtName; string NewFileName2 = DateTime.Now.ToString("yyyyMMddhhmmss") + FileSize + "_1." + FileExtName; string NewFilePath = ""; if (Model.Article.Setting.Upload_SortFile == true) { if (Model.Article.Setting.Upload_FolderStyle != "") { FileURL = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + FileExtName + "/" + DateTime.Now.ToString(Model.Article.Setting.Upload_FolderStyle) + "/" + NewFileName; FileURL2 = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + FileExtName + "/" + DateTime.Now.ToString(Model.Article.Setting.Upload_FolderStyle) + "/" + NewFileName2; NewFilePath = AppPath + Model.Article.Setting.Upload_Folder.Replace("/", "\\") + "\\" + FileExtName + "\\" + DateTime.Now.ToString(Model.Article.Setting.Upload_FolderStyle).Replace("/", "\\"); } else { FileURL = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + FileExtName + "/" + NewFileName; FileURL2 = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + FileExtName + "/" + NewFileName2; NewFilePath = AppPath + Model.Article.Setting.Upload_Folder.Replace("/", "\\") + "\\" + FileExtName; } } else { if (Model.Article.Setting.Upload_FolderStyle != "") { FileURL = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + DateTime.Now.ToString(Model.Article.Setting.Upload_FolderStyle) + "/" + NewFileName; FileURL2 = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + DateTime.Now.ToString(Model.Article.Setting.Upload_FolderStyle) + "/" + NewFileName2; NewFilePath = AppPath + Model.Article.Setting.Upload_Folder.Replace("/", "\\") + "\\" + DateTime.Now.ToString(Model.Article.Setting.Upload_FolderStyle).Replace("/", "\\"); } else { FileURL = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + NewFileName; FileURL2 = Model.Article.Setting.Upload_Prefix + Model.Article.Setting.Upload_Folder + "/" + NewFileName2; NewFilePath = AppPath + Model.Article.Setting.Upload_Folder.Replace("/", "\\"); } } TT.WebManager.Methods.IIOO.CreateDirectory(NewFilePath); FileAppPath = NewFilePath + "\\" + NewFileName; FileAppPath2 = NewFilePath + "\\" + NewFileName2; postedFile.SaveAs(FileAppPath); switch (FileExtName.ToLower()) { case "jpg": case "jpeg": case "gif": case "bmp": case "png": //==========生成水印============= switch (WaterMarkStyle) { case 1: CreateWeaterText(FileAppPath, FileAppPath2, Model.Article.Setting.WaterMark_Text, FileExtName); FileURL = FileURL2; break; case 2: CreateWeaterPicture(FileAppPath, FileAppPath2, Server.MapPath(Model.Article.Setting.WaterMark_Picture), FileExtName); FileURL = FileURL2; break; default: break; } break; } string ReturnString = sFileName + "|" + FileURL + "|" + FileWidth + "|" + FileHeigth + "|" + FileAuto; Response.Clear(); Response.Write("true|"+ReturnString); Response.End(); } private void CreateWeaterText(string paraOldFileName, string paraNewsFileName, string AddText, string FileExtensionName) { System.Drawing.Image image = System.Drawing.Image.FromFile(paraOldFileName); System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image); //文字抗锯齿 g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias; g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality; g.DrawImage(image, 0, 0, image.Width, image.Height); //Font font = new Font("黑体", 14, FontStyle.Bold); //Brush b = new SolidBrush(Color.Yellow); Font font = new Font(Model.Article.Setting.WaterMark_FontFamily, Model.Article.Setting.WaterMark_FontSize, FontStyle.Bold); Brush b = new SolidBrush(Methods.TypeParse.StrToColor(Model.Article.Setting.WaterMark_FontColor)); int Xpos = 0; int Ypos = 0; SizeF crsize = new SizeF(); crsize = g.MeasureString(AddText, font); int crsize_With = Convert.ToInt32(crsize.Width); int crsize_Height = Convert.ToInt32(crsize.Height); int WaterMark_xPos = 10; int WaterMark_yPos = 10; switch (Model.Article.Setting.WaterMark_Position)//==========从图片的左上角开始算起(0,0) { case 1: Xpos = WaterMark_xPos; Ypos = WaterMark_yPos; break; case 2: Xpos = image.Width - (crsize_With + WaterMark_xPos); Ypos = WaterMark_yPos; break; case 3: Xpos = WaterMark_xPos; Ypos = image.Height - (crsize_Height + WaterMark_yPos); break; case 4: Xpos = image.Width - (crsize_With + WaterMark_xPos); Ypos = image.Height - (crsize_Height + WaterMark_yPos); break; } //画阴影 PointF pt = new PointF(0, 0); System.Drawing.Brush TransparentBrush0 = new System.Drawing.SolidBrush(System.Drawing.Color.FromArgb(50, System.Drawing.Color.Black)); System.Drawing.Brush TransparentBrush1 = new System.Drawing.SolidBrush(System.Drawing.Color.FromArgb(20, System.Drawing.Color.Black)); g.DrawString(AddText, font, TransparentBrush0, Xpos, Ypos + 1); g.DrawString(AddText, font, TransparentBrush0, Xpos + 1, Ypos); g.DrawString(AddText, font, TransparentBrush1, Xpos + 1, Ypos + 1); g.DrawString(AddText, font, TransparentBrush1, Xpos, Ypos + 2); g.DrawString(AddText, font, TransparentBrush1, Xpos + 2, Ypos); TransparentBrush0.Dispose(); TransparentBrush1.Dispose(); g.DrawString(AddText, font, b, Xpos, Ypos); switch (FileExtensionName.ToLower()) { case "jpg": case "jpeg": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg); break; case "gif": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif); break; case "bmp": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp); break; case "png": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Png); break; } g.Dispose(); image.Save(paraNewsFileName); image.Dispose(); Response.Clear(); if (File.Exists(paraOldFileName) == true) { File.Delete(paraOldFileName); } } private void CreateWeaterPicture(string paraOldFileName, string paraNewsFileName, string AddPicture, string FileExtensionName) { System.Drawing.Image image = System.Drawing.Image.FromFile(paraOldFileName); System.Drawing.Image copyImage = System.Drawing.Image.FromFile(AddPicture); ImageAttributes imageAttributes = new ImageAttributes(); ColorMap colorMap = new ColorMap(); colorMap.OldColor = Color.FromArgb(200, 0, 200, 0); colorMap.NewColor = Color.FromArgb(0, 0, 0, 0); ColorMap[] remapTable = { colorMap }; imageAttributes.SetRemapTable(remapTable, ColorAdjustType.Bitmap); float[][] colorMatrixElements = { new float[] {1.0f, 0.0f, 0.0f, 0.0f, 0.0f}, new float[] {0.0f, 1.0f, 0.0f, 0.0f, 0.0f}, new float[] {0.0f, 0.0f, 1.0f, 0.0f, 0.0f}, new float[] {0.0f, 0.0f, 0.0f, Model.Article.Setting.WaterMark_Transparency, 0.0f}, new float[] {0.0f, 0.0f, 0.0f, 0.0f, 1.0f} }; ColorMatrix colorMatrix = new ColorMatrix(colorMatrixElements); imageAttributes.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap); Graphics g = Graphics.FromImage(image); //PointF pt = new PointF(0, 0); //System.Drawing.Brush TransparentBrush0 = new System.Drawing.SolidBrush(System.Drawing.Color.FromArgb(50, System.Drawing.Color.)); //System.Drawing.Brush TransparentBrush1 = new System.Drawing.SolidBrush(System.Drawing.Color.FromArgb(20, System.Drawing.Color.Black)); //g.DrawString(AddText, font, TransparentBrush0, pt.X, pt.Y + 1); //g.DrawString(AddText, font, TransparentBrush0, pt.X + 1, pt.Y); //g.DrawString(AddText, font, TransparentBrush1, pt.X + 1, pt.Y + 1); //g.DrawString(AddText, font, TransparentBrush1, pt.X, pt.Y + 2); //g.DrawString(AddText, font, TransparentBrush1, pt.X + 2, pt.Y); //TransparentBrush0.Dispose(); //TransparentBrush1.Dispose(); //设定合成图像的质量 g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality; //设置高质量插值法 g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量,低速度呈现平滑程度 g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; int xPos = image.Width - copyImage.Width - 10; int yPos = image.Height - copyImage.Height - 10; switch (Model.Article.Setting.WaterMark_Position)//==========从图片的左上角开始算起(0,0) { case 1: xPos = 10; yPos = 10; break; case 2: xPos = image.Width - copyImage.Width - 10; yPos = 10; break; case 3: xPos = 10; yPos = image.Height - copyImage.Height - 10; break; case 4: xPos = image.Width - copyImage.Width - 10; yPos = image.Height - copyImage.Height - 10; break; } g.DrawImage(copyImage, new Rectangle(xPos, yPos, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, GraphicsUnit.Pixel, imageAttributes); switch (FileExtensionName.ToLower()) { case "jpg": case "jpeg": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg); break; case "gif": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif); break; case "bmp": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp); break; case "png": image.Save(System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Png); break; } g.Dispose(); image.Save(paraNewsFileName); image.Dispose(); imageAttributes.Dispose(); Response.Clear(); if (File.Exists(paraOldFileName) == true) { File.Delete(paraOldFileName); } // return paraNewsFileName; } protected bool IsValidFileType(string ExtName) { if (Model.Article.Setting.Upload_ContontFileStyle.Trim() == "") return true; string[] AcceptedFileTypes = Model.Article.Setting.Upload_ContontFileStyle.Split(new char[] { '|' }); for (int i = 0; i < AcceptedFileTypes.Length; i++) { if (ExtName.ToLower() == AcceptedFileTypes[i].ToLower()) { return true; } } return false; } }}三、相应的aspx页面代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html><head> <title>FLASH 上传测试</title> <meta http-equiv="content-type" content="text/html; charset=gb2312" /> <link href="../images/style.css" rel="stylesheet" type="text/css" /> <script language="javascript">AC_FL_RunContent = 0;</script> <script src="../javascript/AC_RunActiveContent.js" language="javascript"></script> </head><body><!--影片中使用的 URL--><!--影片中使用的文本--><!-- saved from url=(0013)about:internet --><script language="javascript"> if (AC_FL_RunContent == 0) { alert("此页需要 AC_RunActiveContent.js"); } else { AC_FL_RunContent( 'codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0', 'width', '400', 'height', '56', 'src', '../SWFUpload/SWFFileUpload', 'quality', 'high', 'pluginspage', 'http://www.macromedia.com/go/getflashplayer', 'align', 'middle', 'play', 'true', 'loop', 'true', 'scale', 'showall', 'wmode', 'window', 'devicefont', 'false', 'id', 'SWFFileUpload', 'bgcolor', '#ffffff', 'name', 'SWFFileUpload', 'menu', 'true', 'allowFullScreen', 'false', 'allowScriptAccess','sameDomain', 'movie', '../SWFUpload/SWFFileUpload', 'salign', '', 'FlashVars','ComJsFun=UploadForEditor' ); //end AC code }//src和movie属性为Flash文件地址，请勿写.swf后缀名//FlashVars为给Flash设置的参数。</script><noscript> <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="400" height="56" id="SWFFileUpload" align="middle"> <param name="allowScriptAccess" value="sameDomain" /> <param name="allowFullScreen" value="false" /> <param name="movie" value="../SWFUpload/SWFFileUpload.swf" /> <param name="quality" value="high" /> <param name="bgcolor" value="#ffffff" /> <param name="FlashVars" value="ComJsFun=UploadForEditor"/> <embed src="../SWFUpload/SWFFileUpload.swf" quality="high" bgcolor="#ffffff" width="400" height="56" name="SWFFileUpload" align="middle" allowScriptAccess="sameDomain" allowFullScreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /> </object></noscript><div id="showInfo"></div> <script language="javascript" type="text/javascript">function UploadForEditor(Value){ alert(Value); //var RSArr = Value.split("|"); //UploaFile(RSArr[0],RSArr[1],RSArr[2],RSArr[3],RSArr[4]);} </script></body></html>