使用 javaFx 和 Intellij IDEA 构建到 jar 时缺少依赖项

Question

I am trying to build my project to a runnable jar in intellij IDEA; I am using javaFx for the GUI. I have successfully run/built the project multiple times through development but now I have created an artifact as followed in another stackoverflow post and this didn't include the javafx dependency even though I selected it to and it's in the build path, My message is: Error: JavaFX runtime components are missing, and are required to run this application even though I have added the dependencies in build and to the environment variables. Is there a solution?

Thanks

Answer 1

I had the same error message when trying to run a JAR file created with JavaFX 11 in IntelliJ.

You're just missing two additional steps:

• create an additional main method in a class which doesn't extend application and simply calls your real main method.
• include the .so files in the JAR.

To do that in IntelliJ, it's:

File > Project Structure > Artifacts > click the "+" symbol > File > and then select all the .so files in the JavaFX folder.

Answer 2

scenario:

1. you carefully follow "https://openjfx.io/openjfx-docs/#install-javafx", the "Non-modular with Maven"

2. you app does run inside IntelliJ

3. Yo cannot build a correct jar

4. You DON'T want to fight with

..EXPORT / .. --wtf .... : --module-path $PATH_TO_FX --add-modules

5. due to a known problem, ( http://mail.openjdk.java.net/pipermail/openjfx-dev/2018-June/021977.html )

We have to use an helper class.

6. add the following class "Helper" and make it the "MAIN" class

   public class Launcher {

    public static void main(String[] args) { App.main(args); }

   }

7. change refs in maven from you actual name (if starting from javafx site sample.. ) to this Launcher class:

from:

org.example.App

to:

org.example.Launcher

8. add SHADE plug in to manven:

   org.apache.maven.plugins maven-shade-plugin 3.2.0

    <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <shadedArtifactAttached>true</shadedArtifactAttached> <shadedClassifierName>project-classifier</shadedClassifierName> <outputFile>shade\\${project.artifactId}.jar</outputFile> <transformers> <transformer implementation= "org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> <!-- original: <mainClass>org.example.App</mainClass> --> <mainClass>org.example.Launcher</mainClass> </transformer> </transformers> </configuration> </execution> </executions> </plugin>

9. to run in intelliJ, change main class in "Edit Configuration" to "Launcher"

10. ... run "mvn clean!" :)

PS: You can see ti in action here:

https://github.com/ingconti/SampleJavaFxWithResize