我创建了一个ftp客户端,它在白天连接了几次,从FTP服务器检索日志文件.
问题是几个小时后我收到来自FTP服务器的错误消息(达到-421会话限制..).当我检查与netstat的连接时,我可以看到几个'ESTABLISHED'连接到服务器,即使我已"关闭"连接.
当我尝试通过命令行或FileZilla执行相同操作时,连接已正确关闭.
ftpRequest = (FtpWebRequest)FtpWebRequest.Create(host + "/" + remoteFile);
ftpRequest.Credentials = new NetworkCredential(user, pass);
ftpRequest.UseBinary = true;
ftpRequest.UsePassive = true;
ftpRequest.KeepAlive = true;
ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
ftpResponse = (FtpWebResponse)ftpRequest.GetResponse();
ftpStream = ftpResponse.GetResponseStream();
FileStream localFileStream = new FileStream(localFile, FileMode.Create);
int bytesRead = ftpStream.Read(byteBuffer, 0, bufferSize);
/* Resource Cleanup */
localFileStream.Close();
ftpStream.Close();
ftpResponse.Close();
ftpRequest = null;
如何正确关闭/断开连接？我忘了什么吗？
我试图将刻度转换为格式化的日期/时间值,但我注意到时间不正确.
在下面的示例中,numberOfTicks1的值小于numberOfTicks2.但是,当我创建它的格式化日期/时间值时,numberOfTicks2比numberOfTicks1少约50s ...
为什么会这样？我应该以不同的方式转换它们吗？
long numberOfTicks1 = 635904556104808905;
long numberOfTicks2 = 635904559203480591;
DateTime myDate1 = new DateTime(numberOfTicks1);
DateTime myDate2 = new DateTime(numberOfTicks2);
Console.WriteLine(myDate1.ToString("dd-MM-yyyy HH:MM:ss.fff"));
Console.WriteLine(myDate2.ToString("dd-MM-yyyy HH:MM:ss.fff"));
// Result
//07-02-2016 15:02:50.480
//07-02-2016 15:02:00.348
**更新**
YYYY = four-digit year
MM = two-digit month (01=January, etc.)
DD = two-digit day of month (01 through 31)
hh = two digits of hour (00 through 23) (am/pm NOT allowed)
mm = two digits of minute (00 through 59)
ss = two digits of second (00 …