Java 遍历文件下jpg图片并解析图片

 1 package filetest;

 2 

 3 import java.io.File;

 4 import java.io.FilenameFilter;

 5 import java.io.IOException;

 6 import java.util.ArrayList;

 7 

 8 import com.drew.imaging.jpeg.JpegMetadataReader;

 9 import com.drew.imaging.jpeg.JpegProcessingException;

10 import com.drew.metadata.Directory;

11 import com.drew.metadata.Metadata;

12 import com.drew.metadata.Tag;

13 /**

14  * 文件的迭代输出

15  * 寻找某文件下以“.jpg”结尾的文件 

16  * 并解析该图片

17  * */

18 

19 class MyFilenameFilter implements FilenameFilter{

20     public boolean accept(File dir, String name){

21         return name.endsWith(".jpg")

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

23     }

24 }

25 

26 

27 public class FileTest {

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

29     public static int count = 0;

30     

31     

32     

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

34         

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

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

37         for(String name : nameStrings){

38             count++;

39             

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

41             fiList.add(file.getAbsolutePath());

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

43             try{

44                  Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);

45                  

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

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

48                          

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

50                      }

51                  }

52             }catch(JpegProcessingException e){

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

54                 if(jpegFile.delete()){

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

56                 }

57                 

58                 e.printStackTrace();

59             }

60             

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

62             

63         }

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

65     }

66     

67     

68     

69     

70 }

71 

72 

73 图片的操作：

74 

75 

76 

77 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

78 

79 View Code

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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

  1 package exiftest;

  2 

  3 import java.io.BufferedInputStream;

  4 import java.io.BufferedOutputStream;

  5 import java.io.File;

  6 import java.io.FileInputStream;

  7 import java.io.FileOutputStream;

  8 import java.io.InputStream;

  9 import java.io.InputStreamReader;

 10 import java.io.OutputStream;

 11 import java.text.SimpleDateFormat;

 12 import java.util.Date;

 13 import java.util.Iterator;

 14  

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 import mediautil.image.jpeg.Entry;

 31 import mediautil.image.jpeg.Exif;

 32 import mediautil.image.jpeg.LLJTran;

 33 import mediautil.image.jpeg.LLJTranException;

 34 import net.sf.json.JSONObject;

 35 

 36 import com.drew.imaging.jpeg.JpegMetadataReader;

 37 import com.drew.metadata.Directory;

 38 import com.drew.metadata.Metadata;

 39 import com.drew.metadata.Tag;

 40  

 41 /**

 42  * 测试用于读取图片的EXIF信息

 43  * @author Winter Lau

 44  */

 45 public class Exiftest {

 46     

 47      /** 

 48      * 经纬度转换  度分秒转换 

 49      * @param point 坐标点 

 50      * @return 

 51      */ 

 52     public static String pointToLatlong (String point ) {  

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

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

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

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

 57         return duStr.toString();  

 58     }  

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

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

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

 62          Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);

 63          

 64          

 65          

 66          JSONObject jsonObject = new JSONObject();

 67      

 68          Double lat = null;

 69         Double lon=null;

 70         Date date = null;

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

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

 73                 System.out.println(tag);

 74                  

 75                 String tagname = tag.getTagName();

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

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

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

 79                     jsonObject.accumulate("lon", lon);

 80                 }

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

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

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

 84                     jsonObject.accumulate("lat", lat);

 85                 }

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

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

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

 89                      

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

 91                     Long dateLong = date2.getTime();

 92                      jsonObject.accumulate("time", dateLong);

 93                     

 94                  }

 95              }

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

 97          }

 98          

 99         

100      }

101 }

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