*
* @param istream zip�ļ���������
*/
protected void scan(InputStream istream) {
Handler handler = new Handler();
ZipScanner scanner = new ZipScanner(getConfigEntryResource().getURL(), handler);
scanner.setInputStream(istream);
try {
scanner.scan();
} catch (ScannerException e) {
throw new ConfigException(e);
}
subEntries = handler.getSubEntries();