InputStream is = new URL("").openStream();

BufferedImage sourceImg =ImageIO.read(is);

// // System.out.println(String.format("%.1f",picture.length()/1024.0));

System.out.println(sourceImg.getWidth()); System.out.println(sourceImg.getHeight());

File picture = new File("C:/Users/Administrator/Pictures/我的图片/neusoft.png");

BufferedImage sourceImg =ImageIO.read(new FileInputStream(picture)); System.out.println(String.format("%.1f",picture.length()/1024.0)); System.out.println(sourceImg.getWidth()); System.out.println(sourceImg.getHeight());