结合使用JavaFX和Intellij IDEA [英] Using JavaFX with Intellij IDEA

问题描述

我完全按照教程进行操作，似乎无法正常使用.本教程位于JavaFX and Intellij Non-modular from IDE部分下: https://openjfx.io/openjfx- docs/#install-java

I've followed a tutorial precisely and I can't seem to get it to work. The tutorial is under JavaFX and Intellij Non-modular from IDE sections: https://openjfx.io/openjfx-docs/#install-java

这是我尝试运行默认的Intellij Idea JavaFX项目时收到的错误消息:

Here is the error message I receive when trying to run the default Intellij Idea JavaFX project:

"C:\Program Files\Java\jdk-11.0.1\bin\java.exe" --module-path %PATH_TO_FX% --add-modules=javafx.controls,javafx.fxml --add-modules javafx.base,javafx.graphics --add-reads javafx.base=ALL-UNNAMED --add-reads javafx.graphics=ALL-UNNAMED "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2018.3\lib\idea_rt.jar=53491:C:\Program Files\JetBrains\IntelliJ IDEA 2018.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Users\jonat\IdeaProjects\Tawe-Lib FX\out\production\Tawe-Lib FX;C:\Program Files\Java\javafx-sdk-11.0.1\lib\src.zip;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx-swt.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.web.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.base.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.fxml.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.media.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.swing.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.controls.jar;C:\Program Files\Java\javafx-sdk-11.0.1\lib\javafx.graphics.jar" sample.Main
Error occurred during initialization of boot layer
java.lang.module.FindException: Module javafx.base not found

Process finished with exit code 1

这对我来说意义不大，因为我可以在侧边栏的lib下看到javafx.base:

This makes little sense to me as I can see javafx.base under lib on the sidebar:

通向jdk-11.0.1和javafx-sdk-11.0.1的路径:

C:\ Program Files \ Java

C:\Program Files\Java

已安装Java:

C:\Users\jonat>java --version
openjdk 11.0.1 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)

设置了

JAVA_HOME变量(在指南中提到):

JAVA_HOME variable (mentioned in guide) is set:

C:\Users\jonat>echo %JAVA_HOME%
C:\Program Files\Java\jdk-11.0.1

设置了

PATH_TO_FX变量:

C:\Users\jonat>echo %PATH_TO_FX%
C:\Program Files\Java\javafx-sdk-11.0.1\lib

我真的不知道从这里去哪里.我已经按照本教程进行了精确的操作，但是它不起作用.任何帮助将不胜感激，如果您需要更多信息，请对此发表评论.

I have really no idea where to go from here. I have followed the tutorial precisely, and it does not work. Any help would be greatly appreciated and if you require more info please just drop a comment about it.

推荐答案

基于发布的命令行，这是IntelliJ用于运行项目的内容:

Based on the posted command line, this is what IntelliJ applies to run your project:

"C:\Program Files\Java\jdk-11.0.1\bin\java.exe" --module-path %PATH_TO_FX% --add-modules=javafx.controls,javafx.fxml

因此，问题很明显:在VM选项中，您已设置 verbatim 教程说:

So the issue is quite clear: In the VM options you have set verbatim what the tutorial says:

但是您没有为PATH_TO_FX应用您的真实路径，因为在教程中该命令后插入的图片中建议使用此:

But you haven't applied your real path for PATH_TO_FX, as it is suggested in the picture inserted after that command in the tutorial:

IntelliJ不会解析该变量，并且未设置模块路径，因此会出现预期的错误，表明未找到JavaFX模块:

IntelliJ doesn't resolve that variable and the module path is not set, hence you get the expected error that reveals that the JavaFX modules are not found:

Error occurred during initialization of boot layer
java.lang.module.FindException: Module javafx.controls not found

解决方案

这可以通过两种方式解决:

This can be solved in two ways:

1. 应用您的路径:

编辑运行配置，然后在VM选项中添加路径:

Edit run configurations, and in the VM options add your path:

--module-path "C:\Program Files\Java\javafx-sdk-11.0.1\lib" --add-modules=javafx.controls,javafx.fxml

应用，然后运行.应该可以.

Apply, and run. It should work.

1. 添加环境变量

您还可以设置环境变量.转到IntelliJ->File->Settings->Appearance & Behavior->Path Variables，然后添加PATH_TO_FX，并带有lib文件夹的路径:

You can also set an environment variable. Go to IntelliJ->File->Settings->Appearance & Behavior->Path Variables, and add PATH_TO_FX, with the path to the lib folder:

然后您可以在VM选项中使用文字$PATH_TO_FX$或${PATH_TO_FX}:

And then you can use the literals $PATH_TO_FX$ or ${PATH_TO_FX} in the VM options:

--module-path ${PATH_TO_FX} --add-modules=javafx.controls,javafx.fxml

应用并运行.

请注意，这是一种更永久的解决方案，可以应用于任何其他JavaFX项目.

Note that this is a more permanent solution that can be apply to any other JavaFX project.

这篇关于结合使用JavaFX和Intellij IDEA的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！