How to access mapped network drive from java application?

Question

I have a network drive mapped as:

net use h: \ip\servername

I have a normal java application that is going to read a txt file from that drive.

Code:

File file = new File("H:\\MyFile.txt");

try {
    byte[] bytes = Files.readAllBytes(Paths.get(file.getAbsolutePath()));
} catch (IOException ex) {
    Logger.getLogger(JavaApplication25.class.getName()).log(Level.SEVERE, null, ex);
}

When i run this program from my computer (windows 7 or from another computer with windows vista), the program runs without any problem.

However, when i run this program from a computer with Windows 10, i get the following error:

java.nio.file.NoSuchFileException: H:\MyFile.txt

But if i run the application using the following code it works:

File file = new File("\\ip\servername\MyFile.txt");

try {
    byte[] bytes = Files.readAllBytes(Paths.get(file.getAbsolutePath()));
} catch (IOException ex) {
    Logger.getLogger(JavaApplication25.class.getName()).log(Level.SEVERE, null, ex);
}

How can i use the mapped drive letter instead of using the full address?

When I try your code with a mapped network drive it works fine. Are you sure the drive is mapped when you try to access it? — jalako
– jalako, Commented Mar 14, 2019 at 9:05
yes, it is mapped in all computers with the exact same letter before the execution — Ricardo Alexandre
– Ricardo Alexandre, Commented Mar 14, 2019 at 9:47
in my pc : JRE: 1.8.0_161; JDK: jdk1.8.0_65; in the other computer: jre:1.8.0.201; JDK 1.8.0.201. — Ricardo Alexandre
– Ricardo Alexandre, Commented Mar 14, 2019 at 10:03

Dharman · Accepted Answer · 2019-09-19 14:16:44Z

3

Got same issue. Resolved by editing windows registry

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"EnableLinkedConnections"=dword:00000001

If it works, it means your IT dept. should manage better network policies.

edited Sep 19, 2019 at 14:16

Dharman♦

33.9k27 gold badges106 silver badges157 bronze badges

answered Sep 19, 2019 at 13:35

Nicola Negossi

314 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Ricardo Alexandre · Accepted Answer · 2019-08-21 09:07:03Z

1

using \\ip\servername\file.txt worked

answered Aug 21, 2019 at 9:07

Ricardo Alexandre

491 silver badge5 bronze badges

1 Comment

Ken Over a year ago

This is not an answer to the question the link you provide is not a mapped drive but a UNC address to a network drive. While they may seem to be the same - they are not. A mapped drive is a link to the physical connection.

Collectives™ on Stack Overflow

How to access mapped network drive from java application?

2 Answers 2

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related