CODEWITHSUNDEEP
c#.netftp
Varun Dutt
Varun Dutt

Reputation: 41

Transfering a file using ftp from one server to another in different location

I have a requirement of transferring a document file (.txt, .xls, .doc, .bmp, .jpg etc) from one server to another server. Both servers are at different locations. My main application is running on second server. And I have to deploy this functionality on the first server from where the files in any fixed folder (say D:\documents) will be transferred to second server periodically at any timer event.

I am using a code like as follows

WebClient wc = new WebClient();
wc.UploadFile("ftp://1.23.153.248//d://ftp.bmp", 
    @"C:\Documents and Settings\varun\Desktop\ftp.bmp");

I am getting the error as

unable to connect to remote server

or 

sometime underlying connection was closed

Could you tell me what's wrong.

Upvotes: 2

Views: 4799

Answers (2)

Arsen Mkrtchyan
Arsen Mkrtchyan

Reputation: 50752

Is your ftp public? if no you should define credentials like this

wc.Credentials = new NetworkCredential ("username","password");

before sending file, and try to remove d: from ftp path. ftp clients don't have to know where on server files should be saved... shortly try this

WebClient wc = new WebClient();
wc.Credentials = new NetworkCredential ("username","password");
wc.UploadFile("ftp://1.23.153.248/ftp.bmp", @"C:\Documents and Settings\varun\Desktop\ftp.bmp");

There are also classes created specially for ftp request in .net, here is sample from MSDN

 // Get the object used to communicate with the server.
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.contoso.com/test.htm");
            request.Method = WebRequestMethods.Ftp.UploadFile;

            // This example assumes the FTP site uses anonymous logon.
            request.Credentials = new NetworkCredential ("anonymous","[email protected]");

            // Copy the contents of the file to the request stream.
            StreamReader sourceStream = new StreamReader("testfile.txt");
            byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
            sourceStream.Close();
            request.ContentLength = fileContents.Length;

            Stream requestStream = request.GetRequestStream();
            requestStream.Write(fileContents, 0, fileContents.Length);
            requestStream.Close();

            FtpWebResponse response = (FtpWebResponse)request.GetResponse();

            Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);

            response.Close();

Upvotes: 1

Frédéric Hamidi
Frédéric Hamidi

Reputation: 263167

The URI of your FTP location seems to be off: you shouldn't have to double all the forward slashes, and I don't think drive letters are supported.

If you do:

WebClient wc = new WebClient();
wc.UploadFile("ftp://1.23.153.248/ftp.bmp",
    @"C:\Documents and Settings\varun\Desktop\ftp.bmp");

The file will be sent to the directory set as the FTP location for the anonymous user. If you configure the FTP service on 1.23.153.248 so that location is D:\, everything should work as planned.

Upvotes: 1

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