package filetest;

 import java.io.File;

 import java.io.FilenameFilter;

 import java.io.IOException;

 import java.util.ArrayList;

 import com.drew.imaging.jpeg.JpegMetadataReader;

 import com.drew.imaging.jpeg.JpegProcessingException;

 import com.drew.metadata.Directory;

 import com.drew.metadata.Metadata;

 import com.drew.metadata.Tag;

 /**

  * 文件的迭代输出

  * 寻找某文件下以“.jpg”结尾的文件

  * 并解析该图片

  * */

 class MyFilenameFilter implements FilenameFilter{

     public boolean accept(File dir, String name){

         return name.endsWith(".jpg")

                 || new File(name).isDirectory();

     }

 }

 public class FileTest {

     public static ArrayList<String> fiList = new ArrayList<String>();

     public static int count = 0;

     public static void main(String[] agrs) throws JpegProcessingException, IOException{

         File filePath = new File("E://psresource/Root");

         String[] nameStrings = filePath.list(new MyFilenameFilter());

         for(String name : nameStrings){

             count++;

             File file = new File("E://psresource/Root/" + name);

             fiList.add(file.getAbsolutePath());

             File jpegFile = new File(file.getAbsolutePath());

             try{

                  Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);

                  for(Directory directory : metadata.getDirectories()){

                      for(Tag tag : directory.getTags()){

                          System.out.println(file + "的tag信息为： " +tag);

                      }

                  }

             }catch(JpegProcessingException e){

                 System.out.println("%%%%%%%%%%%%%%%%%"+jpegFile.getAbsolutePath());

                 if(jpegFile.delete()){

                     System.out.println(jpegFile.getAbsolutePath() + "已经被删除");

                 }

                 e.printStackTrace();

             }

              //System.out.println(Integer.toString(count) + file.getAbsolutePath());

         }

         //System.out.println(Integer.toString(count) + "所有的图片的名字：" + fiList.toString());

     }

 }

 图片的操作：

 解析图片，需要两个包metadata-extractor-2.6.4.jar ，但是修改图片的EXIF信息，还要导入另一个jar包：mediautil-1.0.jar

 package exiftest;

 import java.io.BufferedInputStream;

 import java.io.BufferedOutputStream;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileOutputStream;

 import java.io.InputStream;

 import java.io.InputStreamReader;

 import java.io.OutputStream;

 import java.text.SimpleDateFormat;

 import java.util.Date;

 import java.util.Iterator;

 import mediautil.image.jpeg.Entry;

 import mediautil.image.jpeg.Exif;

 import mediautil.image.jpeg.LLJTran;

 import mediautil.image.jpeg.LLJTranException;

 import net.sf.json.JSONObject;

 import com.drew.imaging.jpeg.JpegMetadataReader;

 import com.drew.metadata.Directory;

 import com.drew.metadata.Metadata;

 import com.drew.metadata.Tag;

 /**

  * 测试用于读取图片的EXIF信息

  * @author Winter Lau

  */

 public class Exiftest {

      /**

      * 经纬度转换  度分秒转换

      * @param point 坐标点

      * @return

      */

     public static String pointToLatlong (String point ) {

         Double du = Double.parseDouble(point.substring(0, point.indexOf("°")).trim());

         Double fen = Double.parseDouble(point.substring(point.indexOf("°")+1, point.indexOf("'")).trim());

         Double miao = Double.parseDouble(point.substring(point.indexOf("'")+1, point.indexOf("\"")).trim());

         Double duStr = du + fen / 60 + miao / 60 / 60 ;

         return duStr.toString();

     }

      public static void main(String[] args) throws Exception {

         //File jpegFile = new File("E:\\psresource\\img\\photos\\images\\20140627_140048.jpg");

          File jpegFile = new File("E:\\psresource\\img\\photos\\wwd\\iphone\\20140521.jpg");

          Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);

          JSONObject jsonObject = new JSONObject();

          Double lat = null;

         Double lon=null;

         Date date = null;

          for(Directory directory : metadata.getDirectories()){

              for(Tag tag : directory.getTags()){

                 System.out.println(tag);

                 String tagname = tag.getTagName();

                 if(tagname.equals("GPS Longitude")){

                     System.out.println(pointToLatlong(tag.getDescription()));

                     lon = Double.valueOf(pointToLatlong(tag.getDescription()));

                     jsonObject.accumulate("lon", lon);

                 }

                 else if (tagname.equals("GPS Latitude")) {

                     System.out.println(pointToLatlong(tag.getDescription()));

                     lat = Double.valueOf(pointToLatlong(tag.getDescription()));

                     jsonObject.accumulate("lat", lat);

                 }

                  if(tagname.equals("Date/Time")){

                      System.out.println(tag.getDescription());

                      SimpleDateFormat sdf = new SimpleDateFormat("yyyy:MM:dd hh:mm:ss");

                     Date date2 = sdf.parse(tag.getDescription());

                     Long dateLong = date2.getTime();

                      jsonObject.accumulate("time", dateLong);

                  }

              }

             System.out.println(jsonObject.toString());

          }

      }

 }