java - 如何使用maven项目在JavaFX中生成可执行jar

Question

我无法运行生成的 jar 文件。这是我的错误输出:

no main manifest attribute, in myapp.jar

这是我的 pom.xml 文件:

    <plugins>
            <plugin>
                <groupId>org.openjfx</groupId>
                <artifactId>javafx-maven-plugin</artifactId>
                <version>0.0.4</version>
                <configuration>
                    <mainClass>Main</mainClass>
                    <executable>/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.2.jdk/Contents/Home/bin</executable>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.version}</version>
            </plugin>
            <!-- fat jar -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>${maven.shade.version}</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>

各位，帮帮我吧!如何解决这个问题？

Answer 1

Maven 阴影插件 使用此配置对我有用:

           <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>Main</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

只需将 Main 替换为您的主类即可。
要创建 fat jar，您需要调用 maven package 命令:

mvn package