[英]Upload Multiple files to FTP in c#
我正在使用以下方法將文件從本地服務器上傳到 FTP 服務器,在這里我創建一個新連接並啟動一個新會話,每個文件上傳和關閉相同。 如何在 C# 中的單個啟動會話中實現這一點。
這是我的代碼
public bool UploadTempFilesToFTP()
{
string[] fileList;
try
{
ConfiguredValues conObj = new ConfiguredValues();
conObj.PickTheValuesFromConfigFile();
fileList = Directory.GetFiles(conObj.tempPath);
foreach (string FileName in fileList)
{
FtpWebRequest upldrequest = (FtpWebRequest)FtpWebRequest.Create(conObj.tempOutboundURL + FileName);
upldrequest.UseBinary = true;
upldrequest.KeepAlive = false;
upldrequest.Timeout = -1;
upldrequest.UsePassive = true;
upldrequest.Credentials = new NetworkCredential(conObj.user, conObj.pass);
upldrequest.Method = WebRequestMethods.Ftp.UploadFile;
string destinationAddress = conObj.tempPath;
FileStream fs = File.OpenRead(destinationAddress + FileName);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
Stream requestStr = upldrequest.GetRequestStream();
requestStr.Write(buffer, 0, buffer.Length);
requestStr.Close();
requestStr.Flush();
FtpWebResponse response = (FtpWebResponse)upldrequest.GetResponse();
response.Close();
File.Delete(destinationAddress + FileName);
}
Console.WriteLine("Uploaded Successfully to Temp folder");
return true;
}
catch (Exception ex)
{
Console.WriteLine("Upload failed. {0}", ex.Message);
return false;
}
}
我回答了一個老問題,這很奇怪,但我嘗試了幾乎所有方法將多個文件上傳到 ftp,但沒有運氣,而解決方案非常簡單有效,使用LOOPING - foreach 為我解決了這個問題,我使用下面的函數將文件上傳到一個簡單的步驟..
public void Uploadbulkftpfiles(string[] list)
{
bool ife;// is folder exists
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://ftpsite.com/folder");
request.Credentials = new NetworkCredential("Username", "Password");
request.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
ife = true;
}
catch (Exception)
{
ife = false;
}
/////////////////////////////////////////////begin of upload process
if (ife)//the folder is already exists
{
foreach (var str in list)
{
try
{
FtpWebRequest requestUP2 = (FtpWebRequest)WebRequest.Create("ftp://ftpsite.com/folder" + str);
requestUP2.Credentials = new NetworkCredential("UserName", "Password");
requestUP2.Method = WebRequestMethods.Ftp.UploadFile;
requestUP2.KeepAlive = false;
requestUP2.UsePassive = true;
using (Stream fileStream = File.OpenRead("ftp://ftpsite.com/folder" + str))
using (Stream ftpStream = requestUP2.GetRequestStream())
{
fileStream.CopyTo(ftpStream);
}
}
catch (Exception ex1)
{
MessageBox.Show(ex1.Message);
}
}
}
else if (!ife)
{
//CREATE THE FOLDER
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp:ftpsite/folder");
request.Credentials = new NetworkCredential("UserName", "Password");
request.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
}
catch (Exception excr) { MessageBox.Show(excr.Message); }
//UPLOAD THE FILES
foreach (var str in list)
{
try
{
FtpWebRequest requestUP2 = (FtpWebRequest)WebRequest.Create("ftp://ftpsite.com/folder" + str);
requestUP2.Credentials = new NetworkCredential("UserName", "Password");
requestUP2.Method = WebRequestMethods.Ftp.UploadFile;
requestUP2.KeepAlive = false;
requestUP2.UsePassive = true;
using (Stream fileStream = File.OpenRead("ftp://ftpsite.com/folder" + str))
using (Stream ftpStream = requestUP2.GetRequestStream())
{
fileStream.CopyTo(ftpStream);
}
}
catch (Exception ex1)
{
MessageBox.Show(ex1.Message);
}
}
}
}
ftp 協議旨在根據請求工作。
您使用方法(在您的情況下為 UploadFile)啟動請求。
您唯一能做的就是 KeepAlive 您的請求以避免連接關閉
upldrequest.KeepAlive = true;
在您創建的每個請求上,除了最后一個。 這將使登錄僅在第一個FTPWebRequest
。
然后當你創建最后一個FTPWebRequest
,設置
upldrequest.KeepAlive = false;
完成后它將關閉連接。
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