Display image in JPanel without saving any file to disk

Question

Hi,
I am fetching images from database. I am saving this image, display in JPanel and delete it. But this is not actually I want.
I wish to fetch this image as stream , store in memory and display in JPanel without saving any fiel in disk.
I wonder if it is Possible or any used implementation that I can use in my project. Any idea or experienced knowledge is enough.
Thanks

Answer 1

In what format is the image coming to you from the database? If it's an InputStream subclass, just use javax.imageio.ImageIO:
InputStream in = getImageInputStream();
BufferedImage image = null;
try {
   image = ImageIO.read(in);
} finally {
   in.close();
// ... Display image in your JPanel as you have beenIf you receive the image as an array of bytes, use the same method as above, but with a ByteArrayInputStream:
byte[] imageData = getImageData();
ByteArrayInputStream in = new ByteArrayInputStream(imageData);
BufferedImage image = null;
try {
   image = ImageIO.read(in);
} finally {
   in.close();
// ... Display image in your JPanel as you have been