我设计的软件使用 ftp 将文件上传到我的服务器我使用 ftpwebrequest 进行所有上传。当上传一个 700mb 的文件时，它会上传大约 500mbs 然后停止，它在上传较小的文件时工作正常，较小的文件上传成功，但它只是想在大文件上正常工作。我在后台工作人员中完成了上传，该后台工作人员将上传进度报告给主客户端的进度条。当后台工作人员完成时，它会执行后台工作人员完成功能。后台工作人员完成功能被执行，但上传从未完成，进度条停留在大约 65%，就像客户端停止上传并执行后台工作人员完成功能一样，就好像它完成了上传一样。上传不会出现什么问题
void UploadFileInBackground_DoWork(object sender,DoWorkEventArgs e)
{
byte[] data;
int packetsize = 1024 * 8;
string Destination = UploadURI + cattext + "/" + ID + ".obj";
string source = DialogBrower.FileName;
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(Destination);
request.Credentials = new NetworkCredential("user", "pass");
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UsePassive = true;
request.UseBinary = true;
request.KeepAlive = false;
using (FileStream fs = new FileStream(source, FileMode.Open, FileAccess.Read))
{
try
{
long filesize = fs.Length;
long sum = 0;
int count = 0;
data = new byte[packetsize];
Stream reqStream = request.GetRequestStream();
float totalpackits = filesize / packetsize;
float weightofpackit = 100 / totalpackits;
float percentage = 0;
while (sum < filesize)
{
List<string> statusparms = new List<string>();
count = fs.Read(data, 0, packetsize);
reqStream.Write(data, 0, count);
sum += count;
percentage += weightofpackit;
int percentagetotal = Convert.ToInt32(Math.Round(percentage));
statusparms.Add(sum.ToString());
statusparms.Add(filesize.ToString());
UploadFileInBackground.ReportProgress(percentagetotal, statusparms);
}
reqStream.Close();
uploadedname = uploadingname;
}
finally
{
fs.Dispose();
data = null;
}
}
}