Re: getting img dimensions..
Remi Arntzen wrote:
maya wrote:
can you do with java what you can do with PHP as described here?
http://us2.php.net/manual/en/function.getimagesize.php
> >
namely, get image-dimensions.. is there a way to do this w/Java ON THE
SERVER, not in an applet or swing app..
thank you..
java.awt.image.BufferedImage image =
javax.imageio.ImageIO.read(java.io.File);
int imageWidth = image.getWidth();
int imageHeight = image.getHeight();
Although this works, it is a bit heavy handed. There's no reason to
read the whole image into memory. Try something like this instead:
/**
* Attempts to read image width and height from file.
*
* @param file File that contains image
* @return image dimensions or null if file does not contain
* an image or an error occurs while reading file.
*/
public static Dimension readDimensions(File file)
{
ImageInputStream iis = null;
ImageReader reader = null;
try
{
iis = new FileImageInputStream(file);
Iterator it = ImageIO.getImageReaders(iis);
if (!it.hasNext())
return null;
reader = (ImageReader) it.next();
reader.setInput(iis, true, true);
return new Dimension(reader.getWidth(0), reader.getHeight(0));
}
catch (IOException e)
{
e.printStackTrace();
return null;
}
finally
{
try
{
if (reader != null)
reader.dispose();
if (iis != null)
iis.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
Regards,
Daniel Sj=F6blom