FileChannel fc = new FileInputStream( "c:/a.html" ).getChannel();
ByteBuffer byteBuf = fc.map( FileChannel.MapMode.READ_ONLY, 0, fc.size() );
CharBuffer charBuf = Charset.defaultCharset().newDecoder().decode( byteBuf );
Pattern pattern = Pattern.compile( "<a.*?href=[\"']([^\"]*?)[\"'].*?>", Pattern.CASE_INSENSITIVE );
Matcher m = pattern.matcher( charBuf );
while ( m.find() )
System.out.println( m.group( 1 ) );
fc.close();
