引用：

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。

但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。

 

展开下面的代码看吧，第一次使用代码模式，有点问题

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 == "")

continue;

if(i==0)

FileExtension = "*."+arr;

else

FileExtension = FileExtension+";*."+arr;

}

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 == 194) {

tempByteArr.writeByte(oriByteArr[i+1]);

i++;

} else if (oriByteArr == 195) {

tempByteArr.writeByte(oriByteArr[i+1] + 64);

i++;

} else {

tempByteArr.writeByte(oriByteArr);

}

}

tempByteArr.position = 0;

return tempByteArr.readMultiByte(tempByteArr.bytesAvailable,"chinese");

//return tempByteArr.readMultiByte(tempByteArr.bytesAvailable,"chinese");

}

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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.ToLower())

{

return true;

}

}

return false;

}

}

}

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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>

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源码下载：附件: SWFFileUpload.rar （下载 746 次）