flash 大文件上传

引用：http://www.pin5i.com/showtopic-23382.html

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");
}
复制代码
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）