ASP.NET使用SWFUpload上传大文件教学
//引入File Api
import flash.net.FileReference;
//变量
var mFile:FileReference = new FileReference();
var mTotalBytes:Number = 0;
var sConver=0;
var sRecname=0;
var mUploadedBytes:Number = 0;
var mFileName:String = "";
var mFileListener = new Object();
var mIsUploading = false;
_root.btnUpload.enabled = false;
_root.btnBrowse.addEventListener("click",BrowseFile);
_root.btnUpload.addEventListener("click",UploadFile);
_root.Conver.addEventListener("click",funConver);
_root.recname.addEventListener("click",funRecname);
function funRecname()
{
if(recname.selected)
{
sRecname=1;
}
else
{
sRecname=0;
}
}
function funConver()
{
if(Conver.selected)
{
sConver=1;
getURL("javascript:Conver(1);alert('您选择了在线转换视频，这将需要一定时间\\n请不要关闭此窗体及作任何无关动作，耐心等待')");
//ShowMessage("您选择了在线转换视频，这将需要一定时间\\n请不要关闭此窗体及作任何无关动作，耐心等待");
}
else
{
sConver=0;
getURL("javascript:Conver(0);");
}
}
function BrowseFile()
{
if(FileExtension != undefined)
{
var allTypes:Array = new Array();
var myTypes:Object = new Object();
myTypes.description = "请选择要上传的文件("+FileExtension+")";
myTypes.extension = FileExtension;
allTypes.push(myTypes);
mFile.browse(allTypes);
}
else
{
mFile.browse();
}
}
function UploadFile()
{
;
if(_root.mIsUploading)
{
mFile.cancel();
_root.btnUpload.label = "上传";
_root.mIsUploading = false;
_root.btnBrowse.enabled = true;
}
else
{
_root.btnUpload.label = "取消";
_root.mIsUploading = true;
_root.btnBrowse.enabled = false;
mFile.upload(BuildUploadPage());
}
}
//文件上传监视
mFileListener.onSelect = function (file:FileReference):Void {
if(file.size > 0)
{ var Usize:Number=512
if(filesize!=undefined)
{
Usize=filesize;
}
if(file.size>Usize*1024)
{
ShowMessage("上传大小超过限制("+Usize+"KB)");
}
_root.btnUpload.enabled = true;
_root.mFileName = file.name;
_root.mTotalBytes = file.size;
_root.txtFile.text = "["+_root.GetSizeType(_root.mTotalBytes)+"]"+_root.mFileName;
}
else
{
_root.btnUpload.enabled = false;
}
}
//取消
mFileListener.onCancel = function (fileRef:FileReference):Void {
_root.btnUpload.label = "上传";
_root.mIsUploading = false;
//_root.btnBrowse.enabled = true;
}
mFileListener.onOpen = function (fileRef:FileReference):Void {
_root.txtFile.text = "["+_root.GetSizeType(0)+"/"+_root.GetSizeType(_root.mTotalBytes)+"]"+_root.mFileName;
}
mFileListener.onProgress = function (fileRef:FileReference, bytesLoaded:Number, bytesTotal:Number):Void {
_root.txtFile.text = "["+_root.GetSizeType(bytesLoaded)+"/"+_root.GetSizeType(bytesTotal)+"]"+_root.mFileName;
gotoAndStop(int((bytesLoaded/bytesTotal)*100));
}
mFileListener.onComplete = function (fileRef:FileReference):Void {
_root.btnUpload.label = "上传";
_root.mIsUploading = false;
_root.btnBrowse.enabled = true;
_root.btnUpload.enabled=false;
//_root.txtFile.text="请选择要上传的文件";
FinishedUpload(fileRef.name);
}
mFileListener.onHTTPError = function(fileRef:FileReference):Void {
mFile.cancel();
_root.btnUpload.label = "上传";
_root.mIsUploading = false;
_root.btnBrowse.enabled = true;
_root.mcProgressBar.visible = false;
ShowMessage("上传[" + fileRef.name+"]时，出现网络问题.");
}
mFileListener.onIOError = function(fileRef:FileReference):Void {
ShowMessage("无法打开文件：" + fileRef.name);
}
mFileListener.onSecurityError = function(fileRef:FileReference, errorString:String):Void {
ShowMessage("没有上传权限");
}
mFile.addListener(mFileListener);
//弹出信息窗口
function ShowMessage(msg:String)
{
getURL("javascript:alert(\""+msg+"\");")
}
function FinishedUpload(fileName)
{
if(CompletedFunction != undefined)
{
getURL("javascript:"+ CompletedFunction+"('"+fileName+"');");
}
}
function BuildUploadPage()
{
var sUploadPage:String = "SWFFileUpload.axd";
if(UploadPage != undefined)
{
sUploadPage = UploadPage;
}
if(Args != undefined)
{
var myArgs:Array = Args.split(";");
var strArgs:String = "?a=a&conver="+sConver+"&recname="+sRecname;
for (var i = 0; i<myArgs.length; i++)
{
strArgs +="&"+ myArgs[i];
}
sUploadPage +=strArgs;
}
return sUploadPage;
}
//计算大小
function GetSizeType(size:Number)
{
if(size < 1024)
return int(size*100)/100 + "bytes";
if(size < 1048576)
return int((size / 1024)*100)/100 + "KB";
if(size < 1073741824)
return int((size / 1048576)*100)/100 + "MB";
return int((size / 1073741824)*100)/100 + "GB";
}
stop();
页面引用源码如下：
<script type="text/javascript">
document.write('<object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" codebase=\"http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0\"');
document.write('width=\"550\" height=\"45\" id=\"Object1\" align=\"middle\">')
document.write('<param name=\"allowScriptAccess\" value=\"sameDomain\" />');
document.write('<param name=\"movie\" value=\"SWFFileUpload.swf\" />');
document.write('<param name=\"quality\" value=\"high\" />');
document.write('<param name=\"wmode\" value=\"transparent\">');
document.write('<param name=\"FlashVars\" value=\"UploadPage=FLVUpload.aspx&Args=type=mov;path=;ParentPath=&CompletedFunction=OnCompleted&FileExtension=*.mpeg;*.avi;*.mp4;*.3gp;*.rm;*.rmvb;*.mov;*.wmv;*.flv;*.asf&filesize=204800\">');
document.write('<embed src=\"SWFFileUpload.swf\" name=\"fileUpload2\" align=\"middle\"');
document.write('allowscriptaccess=\"sameDomain\" type=\"application/x-shockwave-flash\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" />');
document.write('</object>');
</script>
FLVUpload.aspx.cs源码如下
protected void Page_Load(object sender, EventArgs e)
{
Response.CacheControl = "no-cache";
s_rpath = Server.UrlDecode(Request.QueryString["Path"]).Replace("\\","\\\\") ;
s_rppath = Server.UrlDecode(Request.QueryString["ParentPath"]).Replace("\\","\\\\");
if (Request.QueryString["type"] != null)
{
if (Request.QueryString["type"] == "mov")
{
DataTable dt = Sys.BasePramStart();
string Flvdir = dt.Rows[0]["flvsavepath"].ToString();
string Datedir = DateTime.Now.ToString("yy-MM-dd"); ;
string updir = Flvdir + s_rpath;
if (this.Page.Request.Files.Count > 0)
{
try
{
for (int j = 0; j < this.Page.Request.Files.Count; j++)
{
HttpPostedFile uploadFile = this.Page.Request.Files[j];
if (uploadFile.ContentLength > 0)
{
if (!Directory.Exists(updir))
{
Directory.CreateDirectory(updir);
}
string extname = Path.GetExtension(uploadFile.FileName);
string fullname=DateTime.Now.Year.ToString()+DateTime.Now.Month.ToString()+DateTime.Now.Day.ToString()+ DateTime.Now.Hour.ToString()+DateTime.Now.Minute.ToString()+DateTime.Now.Second.ToString();
string filename = uploadFile.FileName;
if (Request.QueryString["recname"] == "1")
{
filename = string.Format("{0}{1}", fullname, extname);
}
uploadFile.SaveAs(string.Format("{0}\\{1}", updir, filename));
}
}
}
catch (Exception ex)
{
Record("111", ex.ToString());
}
}
}
}
}
