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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