Accessing Resources in a JAR File

15 April 2008

JAR files are used to deploy applications. They comprise of java classes and other resources like images etc. In this post, I will explain how to access resources packed in a JAR file.

To access resources in a JAR file, we use getResource method. Lets do this practically. The code snippet provided shows how to retrieve images from a JAR file.

// Get current classloader
ClassLoader cl = this.getClass().getClassLoader();
// Create icons
Icon saveIcon = new ImageIcon(cl.getResource("images/save.gif"));
Icon cutIcon = new ImageIcon(cl.getResource("images/cut.gif"));

The example assumes that the following entries exist in the JAR file.

-images/save.gif
-images/cut.gif

Hope this helps.

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