Special characters in filename java

Question

I'm trying to write a file with special characters in filename, for examplo "tééé ê.mp3", but the filename always stay with "?" instead the character "é", I tried a several methods but i didn't found a solution:

String musicName = new String("tééé ê.mp3".getBytes(), "UTF-8");
OutputStreamWriter bw = new OutputStreamWriter(new FileOutputStream(FILE_PATH+"musics/"+musicName), "UTF-8");
bw.write(data);
bw.close();

I tried this way too.

OutputStreamWriter bw = new OutputStreamWriter(new FileOutputStream(URLDecoder.decode(FILE_PATH+"musics/tééé ê.mp3", "UTF-8")), "UTF-8");
bw.write(data);
bw.close();

Some file systems even don't support such file names. Why do you want to write such? — Willem Van Onsem, Feb 12 '15 at 11:48
because the system what i'm building have to accept upload files with special characters in file name. — pedrodurek, Feb 12 '15 at 11:51
Leaving Java aside: on this system (which one, btw??), can you create a file with these characters in its name? — laune, Feb 12 '15 at 11:58
Yes, i'm using Mac Os system, and i can create files with special characters manually. — pedrodurek, Feb 12 '15 at 12:13
@pedrodurek: that does not depend on the operating system (itself), but on the file system used. For instance FAT can't whereas NTFS can. — Willem Van Onsem, Feb 12 '15 at 12:34

score 1 · Accepted Answer · edited Feb 12 '15 at 12:20

1

Try with Files:

final Path target = Paths.get("tééé ê.mp3");

try (
    final OutputStream out = Files.newOutputStream(target, StandardOpenOption.CREATE_NEW);
) {
    // write
}

Now, if this is a problem that your filesystem does not support such filenames, you will get an InvalidPathException; unlike File, the new API refuses to create file names which may end up being unreadable.

If this is the case that you can indeed not create the path, well, you'll have to find a way to escape and unescape somewhat; maybe write an alternate name to some sort of database or something.

Note that InvalidPathException is unchecked; you therefore have to catch this exception explicitly. Also note that you may get this exception if the current character coding used by the JVM is just not suitable to generate the filename.

edited Feb 12 '15 at 12:20

Axel

13,939
5
50
79

answered Feb 12 '15 at 11:57

fge

119,121
33
254
329

File filename stayed "t%E9%E9%E9 %EA.mp3". Do you know how can i fix it? – pedrodurek Feb 12 '15 at 12:09
Hmm, it appears that the problem is with your terminal then; maybe it just cannot display such characters? – fge Feb 12 '15 at 12:12
What is the encoding used by your JVM? – fge Feb 12 '15 at 12:20
1

Well, you should really use UTF-8 instead – fge Feb 12 '15 at 12:50
I put the project in apache and it worked, I think it could be something with the eclipse. Do you know what it could be and how to fix it? – pedrodurek Feb 12 '15 at 13:13

Special characters in filename java

1 Answers1

Linked