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Québec · Guest

Hi,

For sure Ifind theese jar things are intricated.

pw = new PrintWriter ( new
FileWriter(MusicCatalog.class.getResourceAsStream("catalog.txt") , true));

JPD

Québec · Guest

I have tried a class from Chen but it seems impossible to add something to a
jar without erasing what is in it.

I thought about unzipping evething adding the changes and rezipping
evrything.

Seems tiedous tome. Isn't there a method to add something to a jar?

"Québec" <jpda (AT) vidn (DOT) ca> wrote

Jonas Kongslund · Guest

Québec wrote:

Québec · Guest

Sorry,

I am taking about this.
-------------------
System.out.println("Usage: java Main <jar-file> <file1>...");
-------------------
try {
// Create the manifest.
Manifest man = new Manifest();
man.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION,
"1.0");

for (int i=1; i<args.length; i++) {
File f = new File(args[i]);
Attributes attr = new Attributes();

attr.put(new Attributes.Name("Date"),
new Date(f.lastModified()).toString());
man.getEntries().put(entryName(f), attr);
}

// Dump manifest.
man.write(System.out);

JarOutputStream jos = new JarOutputStream(
new FileOutputStream(args[0]), man);

// Now save all the list files in the JAR.
byte[] buf = new byte[1024];
int len;

for (int i=1; i
File f = new File(args[i]);
FileInputStream fis = new FileInputStream(f);
jos.putNextEntry(new JarEntry(entryName(f)));

// Now read and write the jar entry data.
while ((len = fis.read(buf)) >= 0) {
jos.write(buf, 0, len);
}
fis.close();
}
jos.close();
} catch (Exception e) {
e.printStackTrace();
}
}

// Converts f's pathname to a form acceptable to ZIP files.
// In particular, file separators are converted to forward slashes.
static String entryName(File f) throws IOException {
return f.getName().replace(File.separatorChar, '/');
}
}