鎴戝湪緗戜笂鎵懼埌涓涓紑婧愮殑寮鍙戝伐鍏峰寘Metadata-Extractor錛屼嬌鐢ㄥ畠鍙互鍍廇CDSee絳夊浘鍍忚蔣浠朵竴鏍瘋鍙栨暟鐮佺収鐗囩殑Exif淇℃伅銆?br />
鎴戝啓浜嗕竴涓皬Demo紼嬪簭婕旂ず閫氳繃浣跨敤metadata-extractor-2.2.2璇誨彇鏁扮爜鐓х墖鐨凟xif淇℃伅騫朵粠Exif涓鍙栧浘鍍忕緝鐣ュ浘銆?br />
import聽java.io.*;import聽java.nio.*;import聽java.nio.channels.*;import聽java.util.*;import聽com.drew.imaging.jpeg.*;import聽com.drew.metadata.*;import聽com.drew.metadata.exif.*;
聽public聽class聽ExifExtractor聽
{
聽聽public聽ExifExtractor()聽{
聽聽}
聽聽public聽static聽void聽main(String[]聽args)聽{聽聽聽聽try聽{聽聽聽聽聽聽Metadata聽metadata聽=聽JpegMetadataReader.readMetadata(new聽File("o_P4140147.JPG.jpg"));聽聽聽聽聽聽Iterator聽directories聽=聽metadata.getDirectoryIterator();聽聽聽聽聽聽while聽(directories.hasNext())聽{聽聽聽聽聽聽聽聽Directory聽directory聽=聽(Directory)聽directories.next();聽聽聽聽聽聽聽聽Iterator聽tags聽=聽directory.getTagIterator();聽聽聽聽聽聽聽聽while聽(tags.hasNext())聽{聽聽聽聽聽聽聽聽聽聽Tag聽tag聽=聽(Tag)聽tags.next();聽聽聽聽聽聽聽聽聽聽//聽modify聽Exif//聽聽聽聽聽聽聽聽聽聽if聽(tag.getTagName().equalsIgnoreCase("User聽Comment"))聽{//聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽Directory聽exifDirectory聽=聽metadata.getDirectory(ExifDirectory.class);//聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽exifDirectory.setString(tag.getTagType(),聽"LeonChen");//聽聽聽聽聽聽聽聽聽聽}聽聽聽聽聽聽聽聽聽聽//聽read聽thumbnail聽聽聽聽聽聽聽聽聽聽if聽(tag.getTagName().equalsIgnoreCase("Thumbnail聽Data"))聽{聽聽聽聽聽聽聽聽聽聽聽聽Directory聽exifDirectory聽=聽metadata.getDirectory(ExifDirectory.class);聽聽聽聽聽聽聽聽聽聽聽聽byte[]聽dataBuffer聽=聽exifDirectory.getByteArray(tag.getTagType());聽聽聽聽聽聽聽聽聽聽聽聽FileChannel聽channel聽=聽new聽RandomAccessFile(new聽File("thumbnail.jpg"),聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽"rw").getChannel();聽聽聽聽聽聽聽聽聽聽聽聽MappedByteBuffer聽fileBuffer聽=聽channel.map(FileChannel.MapMode.聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽READ_WRITE,聽0,聽dataBuffer.length);聽聽聽聽聽聽聽聽聽聽聽聽fileBuffer.put(dataBuffer);聽聽聽聽聽聽聽聽聽聽聽聽fileBuffer.force();聽聽聽聽聽聽聽聽聽聽聽聽channel.close();聽聽聽聽聽聽聽聽聽聽}聽聽聽聽聽聽聽聽聽聽//聽print聽exif聽聽聽聽聽聽聽聽聽聽System.out.println(tag);聽聽聽聽聽聽聽聽}聽聽聽聽聽聽}聽聽聽聽}聽聽聽聽catch聽(FileNotFoundException聽ex)聽{聽聽聽聽聽聽ex.printStackTrace();聽聽聽聽}聽聽聽聽catch聽(IOException聽ex)聽{聽聽聽聽聽聽ex.printStackTrace();聽聽聽聽}聽聽聽聽catch聽(MetadataException聽ex)聽{聽聽聽聽聽聽ex.printStackTrace();聽聽聽聽}聽聽聽聽catch聽(JpegProcessingException聽ex)聽{聽聽聽聽聽聽ex.printStackTrace();聽聽聽聽}聽聽}
}鎴戝湪涓婇潰鐨勬祴璇曠▼搴忛噷娉ㄩ噴浜嗕竴孌典唬鐮侊紝浠栦滑鍙互鍦ㄥ唴瀛樹腑淇敼Exif涓煇涓鑺傜偣鐨勪俊鎭紝浣嗘槸鎴戜笉鐭ラ亾鎬庢牱鎵嶈兘灝嗕慨鏀瑰悗鐨凟xif淇℃伅淇濆瓨鍒版枃浠訛紝濡傛灉浣犵煡閬撴柟娉曪紝璇風粰鎴戠暀璦銆?br />
嫻嬭瘯鍥劇墖涓嬭澆鍦板潃錛?br />http://www.tkk7.com/images/blogjava_net/leon/2174/o_P4140147.JPG
EXIF鍙傝冿細
http://www.exif.org
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