java.lang.IllegalArgumentException: Invalid URL or resource not found. JavaFX image

Question

I'm using Dropbox API V2 to download images from my Dropbox to my Java Program. I save them in "/src/main/Resources/Downloads/" and then want to get the image.jpg at the same time the program is running after downloaded.

1) The first time the program downloads the image and run this I get "Invalid URL or resource not found" error:

Button button1 = new Button();
Image thumbnail = new Image("/Downloads/image.jpg");
button1.setGraphic(new ImageView(thumbnail));

2) Second time when I have closed the program and the file is already saved in Resources it works.

What am I missing?

The image probably wasn't saved at the time of / before the call in #1. — user2864740
– user2864740, Commented Dec 4, 2016 at 19:33
are you sure the download function returns AFTER the image has downloaded successfully? Put in a sleep of sufficient time to test this — l'arbre
– l'arbre, Commented Dec 4, 2016 at 19:38
I just made a Thread.sleep(70000) just to be super sure. But still didn't do the trick. It seems like the images downloaded isn't saved in resource folder until I close the program. — David
– David, Commented Dec 4, 2016 at 19:46
Please use a code block {} instead of quotes to highlight your code - it will look better — Mikkel
– Mikkel, Commented Dec 4, 2016 at 19:50

David · Accepted Answer · 2016-12-06 10:00:46Z

2

Found a solution:

String path = "/src/main/Resources/";

File file = new File(path + i.getLocalPathThumbnail());
String localUrl = file.toURI().toURL().toString();
Image thumbnail = new Image(localUrl, false);

answered Dec 6, 2016 at 10:00

David

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1 Comment

smac89 Over a year ago

A better method is to use file.toURI().toURL().toExternalForm()

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