我想将我的项目打包在一个可执行的JAR中进行分发。
如何使Maven项目将所有依赖JAR打包到输出JAR中?
我想将我的项目打包在一个可执行的JAR中进行分发。
如何使Maven项目将所有依赖JAR打包到输出JAR中?
当前回答
对于任何想要从über JAR文件中排除特定依赖项的人来说,这是一个适合我的解决方案:
<project...>
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>1.6.1</version>
<scope>provided</scope> <!-- <============= -->
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>...</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
它不是mvn程序集插件的配置,而是依赖项的属性。
其他回答
您可以使用依赖插件在包阶段之前在单独的目录中生成所有依赖项,然后将其包含在清单的类路径中:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>theMainClass</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
或者,使用${project.build.directory}/classes/lib作为OutputDirectory将所有JAR文件集成到主JAR文件中,但随后需要添加自定义类加载代码来加载JAR文件。
您可以使用maven依赖插件,但问题是如何创建可执行JAR文件。要做到这一点,需要对Matthew Franglen的响应进行以下修改(顺便说一下,从干净的目标开始时,使用依赖插件需要更长的时间来构建):
<build>
<plugins>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>fully.qualified.MainClass</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>package</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
<resources>
<resource>
<directory>${basedir}/target/dependency</directory>
</resource>
</resources>
</build>
这是我找到的最好的方法:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.myDomain.etc.MainClassName</mainClass>
<classpathPrefix>dependency-jars/</classpathPrefix>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.5.1</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>
${project.build.directory}/dependency-jars/
</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
使用此配置,所有依赖项都将位于依赖项jar中。我的应用程序没有Main类,只有上下文类,但我的一个依赖项确实有一个Main类(com.myDomain.ec.MainClassName),它启动JMX服务器,并接收start或stop参数。因此,我可以这样启动我的应用程序:
java -jar ./lib/TestApp-1.0-SNAPSHOT.jar start
已经有数百万个答案了。我想补充一下,如果您不需要在应用程序中添加entryPoint,那么您不需要<mainClass>。例如,API可能不一定有主方法。
Maven插件配置
<build>
<finalName>log-enrichment</finalName>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
</plugins>
</build>
建筑
mvn clean compile assembly:single
验证
ll target/
total 35100
drwxrwx--- 1 root vboxsf 4096 Sep 29 16:25 ./
drwxrwx--- 1 root vboxsf 4096 Sep 29 16:25 ../
drwxrwx--- 1 root vboxsf 0 Sep 29 16:08 archive-tmp/
drwxrwx--- 1 root vboxsf 0 Sep 29 16:25 classes/
drwxrwx--- 1 root vboxsf 0 Sep 29 16:25 generated-sources/
drwxrwx--- 1 root vboxsf 0 Sep 29 16:25 generated-test-sources/
-rwxrwx--- 1 root vboxsf 35929841 Sep 29 16:10 log-enrichment-jar-with-dependencies.jar*
drwxrwx--- 1 root vboxsf 0 Sep 29 16:08 maven-status/
这也是一种选择。您将能够构建JAR文件。
<build>
<plugins>
<plugin>
<!-- Build an executable JAR -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>WordListDriver</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>