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Reading image file from executable jar

Mihai Popa
Greenhorn

Joined: Dec 04, 2011
Posts: 5
Hello!
I have built a small Swing application that wants to resemble to a GIS application.

There is a problem when i try to load an image file (jpg):
-When i run the project from Eclipse, loading a larger image (18000 px) using "ImageIO.read(new File(...))" takes 3 second and starts the fan of my computer.
Anyway, the image is loaded succesfully
-When i try to do this from an exported "runnable jar" of my app, the image doesn't load anymore. The "runnable jar" loads correctly smaller images.

Can you tell me what is the problem?
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19720
    
  20

For files inside ZIP or JAR files, you can no longer use java.io.File and its matching stream / reader / writer classes. Instead, you should use Class.getResource, Class.getResourceAsStream, or the same methods from ClassLoader.


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Paul Clapham
Bartender

Joined: Oct 14, 2005
Posts: 18657
    
    8

Jay Brass,
Your post was moved to a new topic.
 
Don't get me started about those stupid light bulbs.
 
subject: Reading image file from executable jar