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public void addFilesToExistingZip(File zipFile,
String file, boolean fullPath) throws IOException {
// get a temp file
File tempFile = File.createTempFile(zipFile.getName(), null);
// delete it, otherwise you cannot rename your existing zip to it.
tempFile.delete();
ArrayList name = new ArrayList();
boolean renameOk=zipFile.renameTo(tempFile);
if (!renameOk)
{
throw new RuntimeException("could not rename the file "+zipFile.getAbsolutePath()+" to "+tempFile.getAbsolutePath());
}
byte[] buf = new byte[1024];
ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile));
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));
ZipEntry entry = zin.getNextEntry();
while (entry != null) {
name.add(entry.getName());
entry = zin.getNextEntry();
}
zin.close();
ZipInputStream zin2 = new ZipInputStream(new FileInputStream(tempFile));
if (fullPath) {
name.remove(file);
InputStream in = new FileInputStream(file);
// Add ZIP entry to output stream.
out.putNextEntry(new ZipEntry(file));
// Transfer bytes from the file to the ZIP file
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
// Add ZIP entry to output stream.
entry = zin2.getNextEntry();
while (entry != null) {
if (name.contains(entry.getName())) {
out.putNextEntry(new ZipEntry(entry.getName()));
// Transfer bytes from the ZIP file to the output file
int lent;
while ((lent = zin2.read(buf)) > 0) {
out.write(buf, 0, lent);
}
}
entry = zin2.getNextEntry();
}
// Close the streams
zin2.close();
// Complete the entry
out.closeEntry();
in.close();
} else {
name.remove(new File(file).getName());
InputStream in = new FileInputStream(file);
// Add ZIP entry to output stream.
out.putNextEntry(new ZipEntry(new File(file).getName()));
// Transfer bytes from the file to the ZIP file
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
// Add ZIP entry to output stream.
entry=zin2.getNextEntry();
while (entry != null) {
if (name.contains(entry.getName())) {
out.putNextEntry(new ZipEntry(entry.getName()));
// Transfer bytes from the ZIP file to the output file
int lent;
while ((lent = zin2.read(buf)) > 0) {
out.write(buf, 0, lent);
}
}
entry = zin2.getNextEntry();
}
// Close the streams
zin2.close();
// Complete the entry
out.closeEntry();
in.close();
}
// Complete the ZIP file
out.close();
tempFile.delete();
} |
[ZIP] Remplacer un fichier dans un Zip
Répondre avec citation
Envoyé par Hoegaarden
En cas d'erreurs tu perds tout (surtout que le fichier temporaire est créé on ne sait où). Il serait préférable de travailler sur le fichier temporaire et de faire la suppression/renommage à la fin si tout s'est bien passé !
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