Acces to protected network files in java

Question

Hi, I need to access files on a network (private LAN) via a java program.
I need to provide a username and a password in order to access these files, becouse they are not accessible by guests (Microsoft Windows 2000 network).
I saw Authenticator class and setDefault() method to provide username and password via getPasswordAuthentication() to an httpURLConnection: IT WORKS FINE, but unfortunately this is not an httpURLConnection...
So, I have to open a networked file, lets say :
java.io.File sourceFile = new File("\\\\MYSERVER\\MYSHARE\\HELLO.TXT");
and then read it, lets say :
java.io.FileInputStream in = new FileInputStream(sourceFile);
byte[] buffer = new byte[16384];
int len;
while ((len = in.read(buffer)) != -1) {
// do something
} // end of while
in.close();
I get a :
java.io.FileNotFoundException: \\MYSERVER\MYSHARE\HELLO.TXT (Access is denied)
How can I introduce a username and password in this context ?
thanks in advance,
Andrea

Answer 1

Windows file sharing networking is via SMB, which Java doesn't support. So, either make a native call (use JNI + C++) or implement SMB on TCP/IP in Java (not trivial - see Samba for details).