使用C#上传文件到FTP
使用C#上传文件到FTP
提问于 2013-03-07 18:31:14
我尝试用C#将文件上传到FTP服务器。文件已上载，但字节为零。
private void button2_Click(object sender, EventArgs e)
{
var dirPath = @"C:/Documents and Settings/sander.GD/Bureaublad/test/";
ftp ftpClient = new ftp("ftp://example.com/", "username", "password");
string[] files = Directory.GetFiles(dirPath,"*.*");
var uploadPath = "/httpdocs/album";
foreach (string file in files)
{
ftpClient.createDirectory("/test");
ftpClient.upload(uploadPath + "/" + Path.GetFileName(file), file);
}
if (string.IsNullOrEmpty(txtnaam.Text))
{
MessageBox.Show("Gelieve uw naam in te geven !");
}
}回答 10
Stack Overflow用户
回答已采纳
发布于 2014-10-15 00:23:10
现有的答案是有效的，但当WebClient已经很好地实现了WebRequest上传时，为什么还要重新发明轮子并为较低级别的FTP类型而烦恼：
using (var client = new WebClient())
{
client.Credentials = new NetworkCredential(ftpUsername, ftpPassword);
client.UploadFile("ftp://host/path.zip", WebRequestMethods.Ftp.UploadFile, localFile);
}Stack Overflow用户
发布于 2017-08-16 13:42:39
最简单的方法
使用.NET框架将文件上传到FTP服务器的最简单方法是使用WebClient.UploadFile method
WebClient client = new WebClient();
client.Credentials = new NetworkCredential("username", "password");
client.UploadFile(
"ftp://ftp.example.com/remote/path/file.zip", @"C:\local\path\file.zip");高级选项
如果您需要更好控制，则使用FtpWebRequest，但WebClient不提供(如TLS/SSL encryption、ascii/文本传输模式、活动模式、传输恢复、进度监控等)。简单的方法是使用Stream.CopyTo将FileStream复制到FTP流
FtpWebRequest request =
(FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.UploadFile;
using (Stream fileStream = File.OpenRead(@"C:\local\path\file.zip"))
using (Stream ftpStream = request.GetRequestStream())
{
fileStream.CopyTo(ftpStream);
}进度监控
如果您需要监控上传进度，您必须自己分块复制内容：
FtpWebRequest request =
(FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.UploadFile;
using (Stream fileStream = File.OpenRead(@"C:\local\path\file.zip"))
using (Stream ftpStream = request.GetRequestStream())
{
byte[] buffer = new byte[10240];
int read;
while ((read = fileStream.Read(buffer, 0, buffer.Length)) > 0)
{
ftpStream.Write(buffer, 0, read);
Console.WriteLine("Uploaded {0} bytes", fileStream.Position);
}
}有关图形用户界面进度(WinForms ProgressBar)的信息，请参阅位于以下位置的C#示例：
How can we show progress bar for upload with FtpWebRequest
上传文件夹
如果要上载文件夹中的所有文件，请参见
Upload directory of files to FTP server using WebClient。
有关递归上载的信息，请参见
Stack Overflow用户
发布于 2013-03-07 19:54:48
.NET 5 Guide
async Task<FtpStatusCode> FtpFileUploadAsync(string ftpUrl, string userName, string password, string filePath)
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpUrl);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential(userName, password);
using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
using (Stream requestStream = request.GetRequestStream())
{
await fileStream.CopyToAsync(requestStream);
}
using (FtpWebResponse response = (FtpWebResponse)await request.GetResponseAsync())
{
return response.StatusCode;
}
}.NET框架
public void UploadFtpFile(string folderName, string fileName)
{
FtpWebRequest request;
string folderName;
string fileName;
string absoluteFileName = Path.GetFileName(fileName);
request = WebRequest.Create(new Uri(string.Format(@"ftp://{0}/{1}/{2}", "127.0.0.1", folderName, absoluteFileName))) as FtpWebRequest;
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UseBinary = 1;
request.UsePassive = 1;
request.KeepAlive = 1;
request.Credentials = new NetworkCredential(user, pass);
request.ConnectionGroupName = "group";
using (FileStream fs = File.OpenRead(fileName))
{
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
Stream requestStream = request.GetRequestStream();
requestStream.Write(buffer, 0, buffer.Length);
requestStream.Flush();
requestStream.Close();
}
}如何使用
UploadFtpFile("testFolder", "E:\\filesToUpload\\test.img");在你的foreach中使用这个
而且你只需要创建一次文件夹
创建文件夹的步骤
request = WebRequest.Create(new Uri(string.Format(@"ftp://{0}/{1}/", "127.0.0.1", "testFolder"))) as FtpWebRequest;
request.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse ftpResponse = (FtpWebResponse)request.GetResponse();页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/15268760
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