Java get image extension/type using BufferedImage from URL -


I'm familiar II, where the URL does not have a file extension. Then I want to do local storage, but I want to upload the image file extension (I.e. JPG, PNG, etc.), which I can not reclaim its extension through lazy imaging.

How can this be done? There will be no other way.

Use

You can get image readers using A file containing

I have not tested it myself, but you can try it: 

  ImageInputStream iis = ImageIO.createImageInputStream (file); Iterator & LT; ImageReader & gt; ImageReaders = ImageIO.getImageReaders (iis); While (imageReaders.hasNext ()) {ImageReader Reader = (ImageReader) imageReaders.next (); System.out.printf ("formatName:% s% n", reader.getFormatName ()); }

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