java获取图片属性

约定不等于承诺〃 2022-08-19 11:15 215阅读 0赞

package readPhoto;

import java.awt.Image;  
import java.awt.image.BufferedImage;  
import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileNotFoundException;  
import java.io.IOException;

import javax.imageio.ImageIO;

import com.sun.image.codec.jpeg.JPEGCodec;  
import com.sun.image.codec.jpeg.JPEGDecodeParam;  
import com.sun.image.codec.jpeg.JPEGImageDecoder;

public class CheckPhotos \{  
public static void main(String\[\] args) throws FileNotFoundException, IOException \{  
File file = new File(“D:\\jkk\_img”);  
check(file);  
\}  
public static void check(File file) throws FileNotFoundException, IOException\{

File[] files =file.listFiles();
        for(File f:files){
            if(f.isDirectory()){
                check(f);
            }else{
                String filename=f.getName();
                if(filename.endsWith(".jpg")){
                    JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(new FileInputStream(f));
                    BufferedImage image = decoder.decodeAsBufferedImage();
                    JPEGDecodeParam param = decoder.getJPEGDecodeParam();
                    int xDensity = param.getXDensity();
                    int yDensity = param.getYDensity();
                    BufferedImage sourceImg =ImageIO.read(new FileInputStream(f)); 
                    double mm=Double.valueOf(String.format("%.1f",f.length()/1024.0));
                    int width = sourceImg.getWidth();
                    int height= sourceImg.getHeight();
                    if(width!=358 || height!=441 || mm < 15 ||xDensity!=96 ||yDensity!=96 ){
                        System.out.println(xDensity);
                        System.out.println(yDensity);
                         System.out.println(mm); //大小 
                         System.out.println(sourceImg.getWidth());  //像素
                         System.out.println(sourceImg.getHeight()); //像素
                         System.out.println(filename);
                    }
                }
            }
        }
    }