Question

我需要上载一些DATA的服务器和FTP服务器。

跟踪盘点后,如何在燃料循环基金内部卸载燃料和燃料循环基金所有工作。

现在我正在努力改进我的上载。

相反,收集DATA,将其写给FLE公司,然后将档案上载到FTP内,以便收集DATA,在不创建当地档案的情况下将其上载。

为此:

string uri = "ftp://" + ftpServerIp + "/" + fileToUpload.Name;
System.Net.FtpWebRequest reqFTP;
// Create FtpWebRequest object from the Uri provided
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIp + "/" + fileToUpload.Name));
// Provide the WebPermission Credintials
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
// By default KeepAlive is true, where the control connection is not closed after a command is executed.
reqFTP.KeepAlive = false;
// Specify the command to be executed.
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
// Specify the data transfer type.
reqFTP.UseBinary = true;
byte[] messageContent = Encoding.ASCII.GetBytes(message);
// Notify the server about the size of the uploaded file
reqFTP.ContentLength = messageContent.Length;
int buffLength = 2048;
// Stream to which the file to be upload is written
Stream strm = reqFTP.GetRequestStream();
// Write Content from the file stream to the FTP Upload Stream
int total_bytes = (int)messageContent.Length;
while (total_bytes > 0)
{
    strm.Write(messageContent, 0, buffLength);
    total_bytes = total_bytes - buffLength;
}
strm.Close();

现在情况如下:

i see the client connecting to the server
the file is created
no data are transferred
at some point the thread is terminated the connection is closed
if i inspect the uploaded file is empty.

意欲转让的DATA是一件战略文件,这就是为什么要发出信息Content = 编码。

什么是错了?

此外,如果与ASCII号编码相联。遥远服务器上的GetBytes将拥有一个短信文档或一个与一些Bytes的档案?

感谢您提出任何建议

Answer 1

我在守则中看到的一个问题是,你在每台电机上写到same:

while (total_bytes > 0)
{
    strm.Write(messageContent, 0, buffLength); 
    total_bytes = total_bytes - buffLength;
}

你们需要改变这种被抵消的立场,做的是:

while (total_bytes < messageContent.Length)
{
    strm.Write(messageContent, total_bytes , bufferLength);
    total_bytes += bufferLength;
}

Answer 2

你试图撰写比你更多的数据。你的代码在某一时间写上了2048年的盒子,如果数据较少,你将使用<条码>write的方法,试图让位于阵列之外、但当然会赢得的箱子进入。

你们都需要撰写数据:

Stream strm = reqFTP.GetRequestStream();
strm.Write(messageContent, 0, messageContent.Length);
strm.Close();

如果你需要用草坪书写数据,你需要跟踪阵列中被抵消的情况:

int buffLength = 2048;
int offset = 0;

Stream strm = reqFTP.GetRequestStream();

int total_bytes = (int)messageContent.Length;
while (total_bytes > 0) {

  int len = Math.Min(buffLength, total_bytes);
  strm.Write(messageContent, offset, len);
  total_bytes -= len;
  offset += len;
}

strm.Close();

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