/// <summary>
/// 上传文件
/// </summary>
/// <param name="ftpAddress"></param>
/// <param name="remoteFilename"></param>
/// <param name="localFilename"></param>
/// <param name="resumeOperation"></param>
public bool UploadFile(string ftpAddress, string localFilename, string remoteFilename, bool resumeOperation)
{
FtpSiteData siteData = ParseFtpAddress(ftpAddress);
if (siteData == null)
{
throw new ArgumentException("Invalid ftp address format!");
}
using (FtpConnection connection = new FtpConnection(siteData.Host, siteData.Port, siteData.UserName, siteData.Password))
{
SetConnection(connection);
AbstractFolder remoteFolder = new FtpFolder(connection);
AbstractFile remoteFile = remoteFolder.GetFile(remoteFilename);
AbstractFile localFile = new DiskFile(localFilename);
if (!resumeOperation || !remoteFile.Exists || remoteFile.Size > localFile.Size)
{
localFile.CopyTo(remoteFile, true);
}
else if (remoteFile.Size == localFile.Size)
{
return(true);
}
else if (remoteFile.Size < localFile.Size)
{
byte[] buf = new byte[1024];
int cnt = -1;
using (System.IO.Stream remoteStream = remoteFile.OpenWrite(false))
{
using (System.IO.Stream localStream = localFile.OpenRead())
{
localStream.Seek(remoteFile.Size, System.IO.SeekOrigin.Begin);
// can't seek. OpenWrite如果不overwrite自动append
//remoteStream.Seek(0, System.IO.SeekOrigin.End);
do
{
cnt = localStream.Read(buf, 0, buf.Length);
remoteStream.Write(buf, 0, cnt);
} while (cnt == buf.Length);
}
}
}
return(true);
}
//FtpClient client = LoginFtp(ftpAddress);
//client.SendFile(localFilename, remoteFilename);
}