How to copy file from smb share to local drive using jcifs in Java?

Question

Could anybody help me to copy file from shared folder to local drive? My code is:

import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbFileInputStream;
import jcifs.smb.SmbFileOutputStream;;


public class smb {

      /**
      * @param args
      * @throws IOException
       */
      public static void main(String[] args) throws IOException {
            // TODO Auto-generated method stub


          String urlToBackUpFile = "smb://ip/backup$/test.txt"; 
          System.out.println("smb folder of source file" + urlToBackUpFile);
          NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(null, "login", "pass");


            SmbFile dir = new SmbFile(urlToBackUpFile, auth);
            System.out.println(dir.getDate());
            SmbFile dest = new SmbFile ("C:/SQLRESTORESTAGE/v2.bak");
            dir.copyTo(dest);
      }
}

File file is not copied. I received a message "Failed to connect to server", but the programm shows dir.getDate() (and file name, and lenght) of source file. So I think the problem with destination folder (C:/SQLRESTORESTAGE/). Also I have proviledges only for reading source file. Could you help me to cirrect the code or advise something? Thank you.

score 8 · Accepted Answer · answered Nov 16 '12 at 20:29

8

maybe adding auth to the second file:

SmbFile dest = new SmbFile ("C:/SQLRESTORESTAGE/v2.bak",**auth**);

using SmbFile dest = new SmbFile ("C:/SQLRESTORESTAGE",auth).canWrite you know if you have write permissions on the parent directory

answered Nov 16 '12 at 20:29

nagualjj

96
1

Man Called Haney · Answer 2 · 2013-07-28T21:51:35.933

After many trials and failures the only method that worked for me reliably was to go old school and use FileInputStream and FileOutputStream like so:

   `SmbFile[] files = getSMBListOfFiles(sb, logger, domain, userName, password, sourcePath, sourcePattern);

    if (files == null)
        return false;
    output(sb, logger, "      Source file count: " + files.length);
    String destFilename;
    FileOutputStream fileOutputStream;
    InputStream fileInputStream;
    byte[] buf;
    int len;
    for (SmbFile smbFile: files) {
        destFilename = destinationPath + smbFile.getName();
        output(sb, logger, "         copying " + smbFile.getName());
        try {
            fileOutputStream = new FileOutputStream(destFilename);
            fileInputStream = smbFile.getInputStream();
            buf = new byte[16 * 1024 * 1024];
            while ((len = fileInputStream.read(buf)) > 0) {
                fileOutputStream.write(buf, 0, len);
            }
            fileInputStream.close();
            fileOutputStream.close();
        } catch (SmbException e) {
            OutputHandler.output(sb, logger, "Exception during copyNetworkFilesToLocal stream to output, SMP issue: " + e.getMessage(), e);
            e.printStackTrace();
            return false;
        } catch (FileNotFoundException e) {
            OutputHandler.output(sb, logger, "Exception during copyNetworkFilesToLocal stream to output, file not found: " + e.getMessage(), e);
            e.printStackTrace();
            return false;
        } catch (IOException e) {
            OutputHandler.output(sb, logger, "Exception during copyNetworkFilesToLocal stream to output, IO problem: " + e.getMessage(), e);
            e.printStackTrace();
            return false;
        }
    }`

Just a little note, it's better to close your streams in a finally block. — Doc Davluz, Jan 30 '14 at 09:07
To add to @PomCompot 's comment, I would also suggest making use of Apache Commons IO and use `IOUtils.closeQuietly(Closeable c)` to close your streams in the `finally` block. It quietly ignores any exceptions raised by calling `close()` on the stream, so be aware of that caveat, though I have yet to find it personally to be an issue. — Will, Nov 05 '15 at 17:09

score 3 · Answer 3 · answered Jan 16 '15 at 16:04

3

I got it to work. I had to 'create' the destination file before doing the copy. try adding the middle line below into your original code-snippet and see if that works.

SmbFile dest = new SmbFile ("C:/SQLRESTORESTAGE/v2.bak");
dest.createNewFile();
dir.copyTo(dest);

answered Jan 16 '15 at 16:04

GregM

31
1

2

I am getting "Logon failure: unknown user name or bad password." exception though the credentials are correct. Can anybody tell me about this? I am using the same code as above – tejas Feb 10 '15 at 06:53

score 2 · Answer 4 · answered May 14 '15 at 09:17

This is for clarification. "Logon failure: unknown user name or bad password." can show for example when you use 1.3.18 but not in 1.2.25. it is probably because different compatibility settings:

jcifs.smb.lmCompatibility = 0 or 1: Send LM and NTLM 2)
jcifs.smb.lmCompatibility = 2: Send NTLM in both fields 3)
jcifs.smb.lmCompatibility = 3, 4, or 5: Send just LMv2

First way is to use it before NtlmPasswordAuthentication

jcifs.Config.setProperty( "jcifs.smb.lmCompatibility", "3");

It can resolve this issue.

score -2 · Answer 5 · edited Jan 12 '15 at 07:32

-2

you must use the file: protocol

SmbFile dest = new SmbFile ("file:" + "C:/SQLRESTORESTAGE/v2.bak");

edited Jan 12 '15 at 07:32

JSK NS

3,346
2
25
42

answered Jan 12 '15 at 06:38

user4444163

1

How to copy file from smb share to local drive using jcifs in Java?

5 Answers5

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