public List<File> unpack(File archiveFile, File targetDir) throws ArchiveException {
// 首先判断下对应的目标文件是否存在，如存在则执行删除
if (false == archiveFile.exists()) {
throw new ArchiveException(String.format("[%s] not exist", archiveFile.getAbsolutePath()));
}
if (false == targetDir.exists() && false == NioUtils.create(targetDir, false, 3)) {
throw new ArchiveException(
String.format("[%s] not exist and create failed", targetDir.getAbsolutePath()));
}
List<File> result = new ArrayList<File>();
ZipFile zipFile = null;
try {
zipFile = new ZipFile(archiveFile);
Enumeration entries = zipFile.entries();
while (entries.hasMoreElements()) {
// entry
ZipEntry entry = (ZipEntry) entries.nextElement();
String entryName = entry.getName();
// target
File targetFile = new File(targetDir, entryName);
NioUtils.create(targetFile.getParentFile(), false, 3); // 尝试创建父路径
InputStream input = null;
OutputStream output = null;
try {
output = new FileOutputStream(targetFile);
input = zipFile.getInputStream(entry);
NioUtils.copy(input, output);
} finally {
IOUtils.closeQuietly(input);
IOUtils.closeQuietly(output);
}
result.add(targetFile);
}
} catch (Exception e) {
throw new ArchiveException(e);
} finally {
if (zipFile != null) {
try {
zipFile.close();
} catch (IOException ex) {
}
}
}
return result;
}
/**
* Close resources.
*
* @throws IOException
*/
@Override
public void close() throws IOException {
zip.close();
}