如何使用Java 10在Maven中添加Javafx依赖项 [英] how to add javafx dependencies in maven with java 10

问题描述

我切换到ubuntu 18.04.哪个具有Java 10作为默认jvm

I switched to ubuntu 18.04. Which has java 10 as default jvm

现在，我使用javafx的应用无法编译了.

Now my apps that use javafx cannot compile anymore.

 cannot find symbol
[ERROR]   symbol:   class ObservableMap

我试图向maven-compiler-plugin添加参数以加载javafx.graphics模块.

I tried to add parameters to the maven-compiler-plugin to load the javafx.graphics module.

        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <compilerArgs>
                    <arg>--add-modules</arg>
                    <arg>javafx.graphics</arg>
                </compilerArgs>
            </configuration>
        </plugin>

结果:

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] module not found: javafx.graphics

当然是java --list-modules |grep fx不返回任何内容.

of course, java --list-modules | grep fx returns nothing.

我花了十多个小时来解决这个问题.

I've spent more than 10 hours trying to figure this out.

TL:DR我应该怎么做才能用Java 10编译JavaFX模块?

TL:DR What am I supposed to do to compile my JavaFX modules with Java 10?

最小项目:

/pom.xml

<project>
    <modelVersion>4.0.0</modelVersion>
    <packaging>jar</packaging>
    <name>java10fx</name>

    <artifactId>java10fx</artifactId>
    <version>0.0.1</version>
    <groupId>my.test</groupId>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <release>10</release>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

/src/main/java/MyApp.java

/src/main/java/MyApp.java

import javafx.application.Application;
import javafx.stage.Stage;

public class MyApp  extends Application{

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

    @Override
    public void start(Stage primaryStage) throws Exception {}

}

错误:

java10fx/src/main/java/MyApp.java:[1,26] package javafx.application does not exist

推荐答案

OpenJDK从未包含JavaFX，并且从Java 11开始，Oracle JDK都不包含JavaFX，因此JavaFX必须成为常规依赖项.OpenJFX是JavaFX背后的项目，最近早期发布访问可用于Java 10和11的独立JavaFX SDK的构建，但尚未在Maven Central上使用(已计划在将来使用).

OpenJDK never contained JavaFX and from Java 11 on, neither will Oracle JDK, so JavaFX will have to become a regular dependency. OpenJFX, the project behind JavaFX, has recently released an early access build of a standalone JavaFX SDK that works with Java 10 and 11, but it is not yet available on Maven Central (that is planned for the future).

现在，您必须手动下载SDK ，并找到一种将其添加到的方法您的Maven构建，例如将其部署到Nexus或将其包含在您的仓库中的文件夹中.一旦它在Maven Central上可用，您就可以像使用任何其他依赖项一样使用它.

For now, you have to download the SDK manually and find a way to add it to your Maven build, for example by deploying it to your Nexus or including it in a folder in your repo. Once it is available on Maven Central you will be able to use it just like any other dependency.

这篇关于如何使用Java 10在Maven中添加Javafx依赖项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！