获取EXIF中的时间信息Metadata 照片批量重命名

[java]代码库

import java.io.File;
import java.util.Iterator;

import com.drew.imaging.jpeg.JpegMetadataReader;
import com.drew.metadata.Directory;
import com.drew.metadata.Metadata;
import com.drew.metadata.Tag;
import com.drew.metadata.exif.ExifDirectory;

public class RenamePic {
    public static void main (String[] args) {
        try {
            String dir = "C:/pic/";
            File directory = new File (dir);
            File[] files = directory.listFiles();
            for (int i = 0; i < files.length; i++) {
                File jpegFile = new File (dir + files[i].getName() );
                Metadata metadata = JpegMetadataReader.readMetadata (jpegFile);
                Directory exif = metadata.getDirectory (ExifDirectory.class);
                Iterator tags = exif.getTagIterator();
                while (tags.hasNext() ) {
                    Tag tag = (Tag) tags.next();
                    if (tag.getTagName().equals ("Date/Time Original") ) {
                        String time = tag.getDescription().replaceAll (":", "")
                                      .replaceAll (" ", "_");
                        File reFile = new File (dir + "IMG_" + time + ".jpg");
                        jpegFile.renameTo (reFile);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

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