Question

尝试运行简单的javafx应用程序时收到错误消息。使用netbeans 11.0，openjdk 12，openjfx12。 Can't extract module name from javafx-12.0.1.pom: Only outputDirectories and jars are accepted on the path

在这个问题上，我有与Alex类似的问题，因为我希望能够进行调试： I can't debug an application using netbeans 11 with JavaFX 12

我以前按照https://openjfx.io/openjfx-docs/的建议使用javafx-archetype-fxml

但是跑步困难。

我尝试遵循Jose建议的步骤。使用pom（更改应用程序名称）：-

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.kev</groupId>
    <artifactId>MavenFX</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>MavenFX</name>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <organization>
        <!-- Used as the 'Vendor' for JNLP generation -->
        <name>Your Organisation</name>
    </organization>

    <dependencies>
        <!-- JavaFx 12 dependancies -->
        <dependency>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx</artifactId>
            <version>12.0.1</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx-controls</artifactId>
            <version>12.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx-fxml</artifactId>
            <version>12.0.1</version>
            <type>jar</type>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <source>12</source>
                    <target>12</target>

                </configuration>
            </plugin>
            <plugin>
                <groupId>org.openjfx</groupId>
                <artifactId>javafx-maven-plugin</artifactId>
                <version>0.0.2</version>
                <executions>
                    <execution>
                        <!-- Default configuration for running -->
                        <id>default-cli</id>
                        <configuration>
                            <mainClass>org.kev.mavenfx.MainApp</mainClass>
                        </configuration>
                    </execution>
                    <execution>
                        <!-- Configuration for debugging -->
                        <id>debug</id>
                        <configuration>
                            <options>
                                <option>-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:8000</option>
                            </options>
                            <mainClass>org.kev.mavenfx.MainApp</mainClass>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

然后我按照建议修改了nbactions.xml：-

<actions>
    <action>
        <actionName>run</actionName>
        <goals>
            <goal>clean</goal>
            <goal>javafx:run</goal>
        </goals>
    </action>
    <action>
        <actionName>jlink</actionName>
        <goals>
            <goal>clean</goal>
            <goal>javafx:jlink</goal>
        </goals>
    </action>
    <action>
        <actionName>debug</actionName>
        <goals>
            <goal>clean</goal>
            <goal>javafx:run@debug</goal>
        </goals>
    </action>
</actions>

该项目将愉快地构建而不会出错。

但是，在尝试运行项目时，出现以下错误消息：-

cd G:\OneDrive\Documents\NetBeansProjects\MavenFX; "JAVA_HOME=C:\\Program Files\\OpenJDK\\jdk-12.0.1" cmd /c "\"\"C:\\Program Files\\Netbeans 11\\java\\maven\\bin\\mvn.cmd\" -Dmaven.ext.class.path=\"C:\\Program Files\\Netbeans 11\\java\\maven-nblib\\netbeans-eventspy.jar\" -Dfile.encoding=UTF-8 clean javafx:run\""
Scanning for projects...

------------------------------------------------------------------------
Building MavenFX 1.0-SNAPSHOT
------------------------------------------------------------------------

--- maven-clean-plugin:2.5:clean (default-clean) @ MavenFX ---
Deleting G:\OneDrive\Documents\NetBeansProjects\MavenFX\target

--- javafx-maven-plugin:0.0.2:run (default-cli) @ MavenFX ---
Using 'UTF-8' encoding to copy filtered resources.
Copying 2 resources
Changes detected - recompiling the module!
Compiling 2 source files to G:\OneDrive\Documents\NetBeansProjects\MavenFX\target\classes
Can't extract module name from javafx-12.0.1.pom: Only outputDirectories and jars are accepted on the path
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Unrecognized option: --module-path
Command execution failed.
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
        at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404)
        at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:166)
        at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:447)
        at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:409)
        at org.openjfx.JavaFXRunMojo.execute(JavaFXRunMojo.java:97)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
        at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404)
        at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:166)
        at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:447)
        at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:409)
        at org.openjfx.JavaFXRunMojo.execute(JavaFXRunMojo.java:97)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 2.827 s
Finished at: 2019-08-07T23:18:12+01:00
Final Memory: 19M/70M
------------------------------------------------------------------------
Failed to execute goal org.openjfx:javafx-maven-plugin:0.0.2:run (default-cli) on project MavenFX: Error: Command execution failed. Process exited with an error: 1 (Exit value: 1) -> [Help 1]

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

我不明白这行： Can't extract module name from javafx-12.0.1.pom: Only outputDirectories and jars are accepted on the path

Answer 1

如评论中所述：

如果收到错误Unrecognized option: --module-path，则表明您正在使用Java 1.8运行。

如果您正在从IDE运行Maven项目，则这也意味着您的IDE也正在使用JDK 1.8。

有两种方法可以解决此问题：

对于NetBeans，在IDE关闭的情况下，您可以编辑C:\path\to\NetBeans11.1\etc\netbeans.conf，并添加JDK 12路径，如此处记录的那样：

netbeans_jdkhome="C:\path\to\jdk-12.0.2"

保存，关闭文件，然后再次打开NetBeans，然后运行项目，它应该可以工作。请注意，这是一个永久性的解决方案。

如果仍然无法使用，请确保您的PATH变量中没有较旧的JDK。经常将JDK bin路径添加到Path环境变量中，如果是这种情况，则IDE仍会选择该路径。

另一种选择是在JavaFX Maven插件中使用<executable>，例如：

<configuration>
    <executable>C:\path\to\jdk-12.0.2\bin\java</executable>
    ...
</configuration>

现在，无论您的IDE的JDK如何，它都会在该路径中选择一个。显然，这会使pom的便携性降低。

Answer 2

下载NetBeans 11.1。创建一个新项目。转到示例并打开jfx。选择简单原型。

尝试使用Maven在NetBeans中运行JavaFX应用程序时出现错误消息

2 个答案: