[英]C# How to upload large file to ftp ( File size must 500 MB - 1 GB)
I'm a newbie, I want to send a large file to ftp using C# but I can't send files above 500 MB - 1 GB. 我是新手,我想使用C#将大文件发送到ftp,但是我无法发送500 MB-1 GB以上的文件。 Could someone please help me?
有人可以帮我吗? Thank you.
谢谢。
The code I'm using is: 我使用的代码是:
private void btnUpload_Click_1(object sender, EventArgs e)
{
openFileDialog.ShowDialog();
NetworkStream passiveConnection;
FileInfo fileParse = new FileInfo(openFileDialog.FileName);
FileStream fs = new
FileStream(openFileDialog.FileName, FileMode.Open);
byte[] fileData = new byte[fs.Length];
fs.Read(fileData, 0, (int)fs.Length);
passiveConnection = createPassiveConnection();
string cmd = "STOR " + fileParse.Name + "\r\n";
tbStatus.Text += "\r\nSent:" + cmd;
string response = sendFTPcmd(cmd);
tbStatus.Text += "\r\nRcvd:" + response;
passiveConnection.Write(fileData, 0, (int)fs.Length);
passiveConnection.Close();
MessageBox.Show("Uploaded");
tbStatus.Text += "\r\nRcvd:" + new
StreamReader(NetStrm).ReadLine(); getRemoteFolders();
}
Do not read the whole file (it will consume too much memory and time), read by blocks: 不要按块读取整个文件(它会占用过多的内存和时间):
NetworkStream passiveConnection;
FileInfo fileParse = new FileInfo(openFileDialog.FileName);
using(FileStream fs = new FileStream(openFileDialog.FileName, FileMode.Open))
{
byte[] buf = new byte[8192];
int read;
passiveConnection = createPassiveConnection();
string cmd = "STOR " + fileParse.Name + "\r\n";
tbStatus.Text += "\r\nSent:" + cmd;
string response = sendFTPcmd(cmd);
tbStatus.Text += "\r\nRcvd:" + response;
while ((read = fs.Read(buf, 0, buf.Length) > 0)
{
passiveConnection.Write(buf, 0, read);
}
}
passiveConnection.Close();
MessageBox.Show("Uploaded");
tbStatus.Text += "\r\nRcvd:" + new
StreamReader(NetStrm).ReadLine();
getRemoteFolders();
And yes, what about FtpWebRequest ? 是的, FtpWebRequest呢?
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