java - 读取 PNG 图像尺寸时出错

Question

我正在尝试读取 PNG 图像的尺寸，但在执行此操作时遇到以下错误 -

Exception in thread "main" javax.imageio.IIOException: I/O error reading PNG header!
at com.sun.imageio.plugins.png.PNGImageReader.readHeader(PNGImageReader.java:307)
at com.sun.imageio.plugins.png.PNGImageReader.readMetadata(PNGImageReader.java:637)
at com.sun.imageio.plugins.png.PNGImageReader.readImage(PNGImageReader.java:1212)
at com.sun.imageio.plugins.png.PNGImageReader.read(PNGImageReader.java:1560)
at javax.imageio.ImageIO.read(ImageIO.java:1422)
at javax.imageio.ImageIO.read(ImageIO.java:1326)

这是我所拥有的导致它的代码 -

    InputStream is = new ByteArrayInputStream(myImgByteArray);
    BufferedImage image = ImageIO.read(is);
    System.out.println("Height: " +image.getHeight()+ "Width: " +image.getWidth());        

有人可以建议我需要做什么来解决这个问题吗？

Answer 1

您可以使用其他方式来获取图像尺寸:

BufferedImage image = javax.imageio.ImageIO.read(new File(imageFilePath));
System.out.println(image.getHeight());
System.out.println(image.getWidth());