Ftp上传或下载文件是，经常报错，错误内容是“The operation has timed out”
代码如下，请给位大哥帮忙看看是啥问题
注:由于此方法是Web调用的，应该是存在多线程情况
public void SaveToFtp(FtpInfo ftp, string imgFileName, string ftpDir, string imageContent)
{
string step = "0";
try
{
//base64转换为img byte[]
byte[] imgBuffer = Convert.FromBase64String(imageContent);
int contentLen = imgBuffer.Length;
string strDir = String.Format(@"ftp://{0}/epolice/Sourced/{1}/", ftp.ServerIp, ftpDir);
string strUri = String.Format(@"ftp://{0}/epolice/Sourced/{1}/{2}", ftp.ServerIp, ftpDir, imgFileName);
step = "1";
FtpWebRequest reqFTP;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strDir));
reqFTP.Credentials = new NetworkCredential(ftp.Username, ftp.Password);
reqFTP.KeepAlive = false;
reqFTP.UsePassive = false;
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse resp = (FtpWebResponse)reqFTP.GetResponse();
resp.Close();
}
catch
{
}
step = "2";
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strUri));
reqFTP.Credentials = new NetworkCredential(ftp.Username, ftp.Password);
reqFTP.KeepAlive = false;
reqFTP.UsePassive = false;
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.UseBinary = true;
reqFTP.ContentLength = contentLen;
step = "3";
// 把上传的文件写入流
Stream strm = reqFTP.GetRequestStream();
strm.Write(imgBuffer, 0, contentLen);
strm.Close();
step = "4";
}
catch (Exception ex)
{
Logger.WriteLog("FTP:SaveToFtp:" + ex.Message + "步骤：" + step + " 文件名" + imgFileName);
throw new Exception("图片上传失败。");
}
}
public string LoadFromFtp(FtpInfo ftp, string imgFileName, string ftpDir)
{
string step = "0";
byte[] imgBuffer;
FtpWebRequest reqFTP = null;
FtpWebResponse response = null;
Stream ftpStream = null;
MemoryStream memStream = new MemoryStream();
string strUri = String.Format(@"ftp://{0}/epolice/Sourced/{1}/{2}", ftp.ServerIp, ftpDir, imgFileName);
try
{
step = "1";
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strUri));
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.KeepAlive = false;
reqFTP.UsePassive = false;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftp.Username, ftp.Password);
step = "2";
response = (FtpWebResponse)reqFTP.GetResponse();
ftpStream = response.GetResponseStream();
step = "3";
imgBuffer = new byte[10240];
int bytesRead;
while (true)
{
bytesRead = ftpStream.Read(imgBuffer, 0, imgBuffer.Length);
if (bytesRead == 0)
break;
memStream.Write(imgBuffer, 0, bytesRead);
}
step = "4";
imgBuffer = memStream.ToArray();
}
catch (Exception ex)
{
Logger.WriteLog("FTP:LoadFromFtp:" + ex.Message + "步骤：" + step + " 文件名" + imgFileName);
throw new Exception("图片下载失败。");
}
finally
{
if (memStream != null)
memStream.Close();
if (ftpStream!=null)
ftpStream.Close();
if (response != null)
response.Close();
}
return Convert.ToBase64String(imgBuffer);
}
貌似出现在这句话最多
response = (FtpWebResponse)reqFTP.GetResponse();
