ASP.NET檔案下載函式
阿新 • • 發佈：2019-02-07
{
_Response.AddHeader("Accept-Ranges", "bytes");
_Response.Buffer =false;
long fileLength = myFile.Length;
long startBytes =0;
double pack =10240; //10K bytes
//int sleep = 200; //每秒5次 即5*10K bytes每秒
int sleep = (int
if (_Request.Headers["Range"] !=null)
{
_Response.StatusCode =206;
string[] range = _Request.Headers["Range"].Split(newchar[] {'=', '-'});
startBytes = Convert.ToInt64(range[1]);
}
_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
if (startBytes !=0)
{
//Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength-1, fileLength));
}
_Response.AddHeader(
_Response.ContentType ="application/octet-stream";
_Response.AddHeader("Content-Disposition","attachment;filename="+ HttpUtility.UrlEncode(_fileName,System.Text.Encoding.UTF8) );
br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
int maxCount = (int) Math.Floor((fileLength - startBytes) / pack) +1;
for (int i =0; i < maxCount; i++)
{
if (_Response.IsClientConnected)
{
_Response.BinaryWrite(br.ReadBytes(int.Parse(pack.ToString())));
Thread.Sleep(sleep);
}
else
{
i=maxCount;
}
}
}
_Response.AddHeader("Accept-Ranges", "bytes"); _Response.Buffer =false; long fileLength = myFile.Length; long startBytes =0; double pack =10240; //10K bytes //int sleep = 200; //每秒5次 即5*10K bytes每秒int sleep = (int if (_Request.Headers["Range"] !=null) {
_Response.StatusCode =206; string[] range = _Request.Headers["Range"].Split(newchar[] {'=', '-'}); startBytes = Convert.ToInt64(range[1]); } _Response.AddHeader("Content-Length", (fileLength - startBytes).ToString()); if (startBytes !=0) { //Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength-1, fileLength)); } _Response.AddHeader( _Response.ContentType ="application/octet-stream"; _Response.AddHeader("Content-Disposition","attachment;filename="+ HttpUtility.UrlEncode(_fileName,System.Text.Encoding.UTF8) ); br.BaseStream.Seek(startBytes, SeekOrigin.Begin); int maxCount = (int) Math.Floor((fileLength - startBytes) / pack) +1; for (int i =0; i < maxCount; i++) { if (_Response.IsClientConnected) { _Response.BinaryWrite(br.ReadBytes(int.Parse(pack.ToString()))); Thread.Sleep(sleep); } else { i=maxCount; } } }