Java 遍历文件下jpg图片并解析图片

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

View Code

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());
         }
         
        
     }
}