使用Maven和jlink的OpenJFX自定义运行时映像-模块导出还是命令行参数? [英] OpenJFX Custom runtime image using Maven and jlink - Module exports or command line arguments?

问题描述

我正在尝试创建一个自定义运行时映像，该映像不需要在计算机上安装JRE/JDK.我已经按照OpenJFX文档上介绍的教程(JavaFX和IntelliJ-使用Maven进行模块化)进行操作，并且能够运行创建的图像，但是我想为我的应用程序类com.sun.glass.ui.Window包含(在javafx模块中) .graphics).

I'm trying to create a custom runtime image that will not require installed JRE/JDK on the computer. I have followed the tutorial presented on OpenJFX Documentation (JavaFX and IntelliJ - Modular with Maven) and I am able to run the created image, but I want to include for my application class com.sun.glass.ui.Window (in module javafx.graphics).

在自定义图像之前，我将以下内容解析为命令行参数: --add-打开javafx.graphics/com.sun.glass.ui=全部取消命名

Before custom images, I was parsing as command line arguments the following: --add-opens javafx.graphics/com.sun.glass.ui=ALL-UNNAMED

我想在运行时中包含它，所以我应该修改Maven的pom以包括javafx-maven-plugin一个(不成功)，还是应该编辑项目module.info以从javafx.graphics导出请求的包

I want to include this in runtime, so should I modify the pom from Maven to include for javafx-maven-plugin a (not successful) or should I edit the project module.info to export the requested package from javafx.graphics.

谢谢， 安德烈(Andrei)

Thanks, Andrei

Pom.xml module.info.java

Pom.xml module.info.java

module com.andrei {
    requires javafx.controls;
    requires javafx.graphics;
    exports com.andrei;
    exports com.sun.glass.ui to com.andrei;
}

在模块"javafx.graphics"中声明软件包"com.sun.glass.ui"，该软件包不会导出到模块"com.andrei"".

"Package "com.sun.glass.ui" is declared in module "javafx.graphics", which does not export to module "com.andrei" "

推荐答案

javafx-maven-plugin应该能够完成您想做的事情.但是，到目前为止，它还没有做到这一点，所以我只提交了以下两个问题:缺少链接虚拟机选项参数.

The javafx-maven-plugin should be able to do what you are trying to do. However, it doesn't do it so far, so I've just filed these two issues: Options for javafx:run are incompatible with javafx:jlink and Missing link vm options parameter.

此问题得到解决并发布了新版本时，有一个简单的(但手动的)修复程序:

While this gets resolved and a new version is published, there is an easy (but manual) fix:

编译时间

在修改javafx-maven-plugin之前，您需要允许您的IDE与私有软件包一起使用.您不能从module-info中做到这一点，但是您可以使用compilerArgs从maven-compiler-plugin中轻松做到这一点:

Before modifying the javafx-maven-plugin, you need to allow your IDE to work with the private package. You can't do it from the module-info, but you can easily do that from the maven-compiler-plugin using compilerArgs:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.0</version>
    <configuration>
        <compilerArgs>
            <arg>--add-exports</arg>
            <arg>javafx.graphics/com.sun.glass.ui=com.andrei</arg>
        </compilerArgs>
    </configuration>
</plugin>

现在，在您的代码中，您可以使用该私有包，并且IntelliJ不会抱怨.

Now in your code you can make use of that private package, and IntelliJ won't complain.

在Maven窗口Lifecycle -> clean和Lifecycle -> compile中运行后，在编辑器中允许这样的操作:

After running from the Maven window Lifecycle -> clean, and Lifecycle -> compile, something like this is allowed in the editor:

@Override
public void start(Stage stage) throws Exception {
    ...
    stage.setScene(scene);
    stage.show();

    com.sun.glass.ui.Window.getWindows().forEach(System.out::println);
}

运行时

但是，如果您执行mvn clean compile javafx:run，则上面的代码将失败:

However, if you do mvn clean compile javafx:run, the code above will fail:

原因:java.lang.IllegalAccessError:com.andrei.Main类(在com.andrei模块中)无法访问com.sun.glass.ui.Window类(在javafx.graphics模块中)，因为模块javafx.graphics确实可以不会将com.sun.glass.ui导出到模块com.andrei.

Caused by: java.lang.IllegalAccessError: class com.andrei.Main (in module com.andrei) cannot access class com.sun.glass.ui.Window (in module javafx.graphics) because module javafx.graphics does not export com.sun.glass.ui to module com.andrei.

如插件自述文件所述，您cad添加了VM将传递给java工具的选项:

As explained in the plugin readme, you cad add VM options that will be passed to the java tool:

<plugin>
    <groupId>org.openjfx</groupId>
    <artifactId>javafx-maven-plugin</artifactId>
    <version>0.0.2</version>
    <configuration>
        <options>
            <option>--add-opens</option>
            <option>javafx.graphics/com.sun.glass.ui=com.andrei</option>
        </options>
        ...
</configuration>
</plugin>

现在您可以运行:mvn clean compile javafx:run，这将起作用，并且您将获得打印出当前阶段的信息.

Now you can run: mvn clean compile javafx:run, and that will work, and you will get information for the current stage printed out.

运行时图像

最后，如果您运行:mvn clean compile javafx:jlink，这将失败，因为jlink不能识别<options>中的内容(已提交第一期)，因此您必须将其注释掉:

Finally, if you run: mvn clean compile javafx:jlink, this will fail, because the content in <options> is not recognized by jlink (first issue filed), so you have to comment it out:

<plugin>
    <groupId>org.openjfx</groupId>
    <artifactId>javafx-maven-plugin</artifactId>
    <version>0.0.2</version>
    <configuration>
        <!--<options>-->
          <!--<option>--add-opens</option>-->
          <!--<option>javafx.graphics/com.sun.glass.ui=com.andrei</option>-->
        <!--</options>-->
        <launcher>launcher</launcher>
        <mainClass>com.andrei/com.andrei.Main</mainClass>
    ...
</configuration>
</plugin>

现在mvn clean compile javafx:jlink可以使用，但是在运行时，由于未导出私有软件包，您将得到与上述相同的错误.

Now mvn clean compile javafx:jlink will work, but when running you will get the same error as above because the private package is not exported.

但是，您可以在target/image/bin/launcher下编辑启动器文件:

However, you can edit the launcher file under target/image/bin/launcher:

#!/bin/sh
JLINK_VM_OPTIONS=
DIR=`dirname $0`
$DIR/java $JLINK_VM_OPTIONS -m com.andrei/com.andrei.Main $@

如您所见，有一个空的JLINK_VM_OPTIONS变量可以用您的vm选项填充.

As you can see, there is an empty JLINK_VM_OPTIONS variable that can be filled with your vm options.

在解决第二个问题之前，只需修改该行:

Until the second issue filed is solved, just modify that line:

#!/bin/sh
JLINK_VM_OPTIONS="--add-opens javafx.graphics/com.sun.glass.ui=com.andrei"
DIR=`dirname $0`
$DIR/java $JLINK_VM_OPTIONS -m fx/org.openjfx.MainApp $@

保存并运行:target/image/bin/launcher，它将起作用.

save, and run: target/image/bin/launcher, and it will work.

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