操作超时C#FTP异常 [英] Operation timed out exception C# FTP
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问题描述
以下行获取异常操作超时
Hi,
Getting Exception at below line as"Operation timed out"
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
,请建议
我尝试过:
, please suggest
What I have tried:
public bool FtpDirectoryExists(string directoryPath)
{
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(directoryPath);
request.Method = WebRequestMethods.Ftp.ListDirectory;
request.Credentials = new NetworkCredential(myftpcreds.UserName, myftpcreds.Password);
request.KeepAlive = false;
request.UsePassive = true;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
//request.Timeout = 5000;
// request.ReadWriteTimeout = 5000;
return true;
}
catch (WebException ex)
{
//MessageBox.Show("FtpDirectoryExists");
return false;
}
}
private void MakeDir(string dirName)
{
try
{
//create the directory
FtpWebRequest requestDir = (FtpWebRequest)FtpWebRequest.Create(new Uri(@"ftp://" + FTPIP + "/" + dirName));
requestDir.Method = WebRequestMethods.Ftp.MakeDirectory;
requestDir.Credentials = new NetworkCredential(myftpcreds.UserName,myftpcreds.Password);
requestDir.UsePassive = true;
requestDir.UseBinary = true;
FtpWebResponse response = (FtpWebResponse)requestDir.GetResponse();
requestDir.KeepAlive = false;
Stream ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
// return true;
}
catch (WebException ex)
{
FtpWebResponse response = (FtpWebResponse)ex.Response;
if (response.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
{
response.Close();
// return true;
}
else
{
response.Close();
// return false;
}
}
}
推荐答案
没有(FTP)服务器使用已使用的URI监听。
检查directoryPath
是否是有效且现有的URI(ftp:/ /domain.tld)。如果是这样,服务器可能已关闭,或者防火墙静默阻止请求和/或响应。
There is no (FTP) server listening at the used URI.
Check if yourdirectoryPath
is a valid and existing URI ("ftp://domain.tld"). If so, the server might be down, or the request and/or response is silently blocked by a firewall.
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