Not loading css file in executable jar javafx8

Question

I am getting an error while I try to run executable jar file.

lis 09, 2014 8:20:34 PM com.sun.javafx.css.StyleManager loadStylesheetUnPrivileged WARNING: Resource "/styles.css" not found.

When I'm running application from IDE, everything is OK. I try a several solution, but neither worked.

1.

scene.getStylesheets().add(getClass().getResource("/styles.css").toExternalForm());

2.

scene.getStylesheets().add("styles.css");

3.

scene.getStylesheets().addAll(new File("/styles.css").toURI().toString());

4

    InputStream inputStream = MainApp.class.getResourceAsStream("/styles.css");
    File tempStyleSheetDest = File.createTempFile("javafx_stylesheet", "");
    tempStyleSheetDest.deleteOnExit();
    Files.copy(inputStream, tempStyleSheetDest.toPath(), StandardCopyOption.REPLACE_EXISTING);
    scene.getStylesheets().add(tempStyleSheetDest.toURI().toString());

And another similar. I struggle this a few hours and I have no more ideas. I'm using maven, java1.8_u20.

Jens-Peter Haack · Accepted Answer · 2014-11-09 21:43:56Z

1

Try

scene.getStylesheets().add(getClass().getResource("styles.css").toExternalForm());

without the '/' in the beginning...

answered Nov 9, 2014 at 21:43

Jens-Peter Haack

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Comments

JavierJ · Accepted Answer · 2016-02-19 17:30:04Z

If you are using maven, make sure to setup your resources folder correctly. Create a resource folder and copy your style.css file inside then add something like this to your pom.xml:

    <resources>
        <resource>
            <directory>src</directory>
            <excludes>
                <exclude>**/*.java</exclude>
            </excludes>
        </resource>
        <resource>
            <directory>resources</directory>
            <excludes>
                <exclude>**/*.java</exclude>
            </excludes>
        </resource>
    </resources>

You have to make sure that the style.css file ends up inside the jar in the location you are requesting with the getClass().getResource() method (that's usually a relative path inside the class package folders or an absolute one if you add the "/" at the front). In Jens-Peter Haack defense, read this (from the getResource() javadoc) :

"If the name begins with a '/' ('\u002f'), then the absolute name of the resource is the portion of the name following the '/'. Otherwise, the absolute name is of the following form: modified_package_name/name Where the modified_package_name is the package name of this object with '/' substituted for '.' ('\u002e')." https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#getResource-java.lang.String-

So if you stick with the '/' at the front of the filename make sure your style.css file ends up in the root of your jar file, if not make sure it ends up in a path relative to the class location inside your jar.

Marvin · Accepted Answer · 2019-11-29 08:06:34Z

0

My sample executable jar with CSS:

Sample Output

set external CSS file: scene.getStylesheets().add(getClass().getResource("myStyle.css").toExternalForm());

get external Image in other directory: -fx-background-image: url('../drawable/bg.png');

edited Nov 29, 2019 at 8:06

answered Nov 28, 2019 at 19:36

Marvin

7768 silver badges17 bronze badges

2 Comments

Marvin Over a year ago

I respect your answer and reaction, but can you tell to me why and how did I resolve @mike192's problem?

kleopatra Over a year ago

me having been wrong and sloppy <g> Missed the context is css/fxml ..

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