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
它的工作原理如下:
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>
解包必须处于生成资源阶段,否则将不作为资源包含。
其他回答
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/
参见maven示例的可执行jar(GitHub)
笔记
这些利弊由Stephan提供。
用于手动部署
赞成的意见欺骗依赖项已从最终jar中删除。
将依赖项复制到特定目录
<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>${project.build.directory}/${project.build.finalName}.lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
使JAR文件可执行并支持Classpath
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>${project.build.finalName}.lib/</classpathPrefix>
<mainClass>${fully.qualified.main.class}</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
此时,JAR文件实际上可以通过外部类路径元素执行。
java -jar target/${project.build.finalName}.jar
创建可部署的存档
JAR文件只能与同级文件一起执行。。。lib/目录。我们需要制作归档文件,以便与目录及其内容一起部署。
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>antrun-archive</id>
<phase>package</phase>
<goals>
<goal>run</goal>
</goals>
<configuration>
<target>
<property name="final.name" value="${project.build.directory}/${project.build.finalName}"/>
<property name="archive.includes" value="${project.build.finalName}.${project.packaging} ${project.build.finalName}.lib/*"/>
<property name="tar.destfile" value="${final.name}.tar"/>
<zip basedir="${project.build.directory}" destfile="${final.name}.zip" includes="${archive.includes}" />
<tar basedir="${project.build.directory}" destfile="${tar.destfile}" includes="${archive.includes}" />
<gzip src="${tar.destfile}" destfile="${tar.destfile}.gz" />
<bzip2 src="${tar.destfile}" destfile="${tar.destfile}.bz2" />
</target>
</configuration>
</execution>
</executions>
</plugin>
现在您有了target/${project.build.finalName}.(zip|tar|tar.bz2|tar.gz),每个文件都包含jar和lib/*。
Apache Maven程序集插件
赞成的意见欺骗不支持类重新定位(如果需要类重新定位,请使用maven shade插件)。
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<archive>
<manifest>
<mainClass>${fully.qualified.main.class}</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
您有target/${project.build.finalName}-jar-with-dependences.jar。
Apache Maven Shade插件
赞成的意见欺骗
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<shadedArtifactAttached>true</shadedArtifactAttached>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>${fully.qualified.main.class}</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
您有target/${project.build.finalName}-shaded.jar。
onejar maven插件
赞成的意见欺骗自2012年以来未得到积极支持。
<plugin>
<!--groupId>org.dstovall</groupId--> <!-- not available on the central -->
<groupId>com.jolira</groupId>
<artifactId>onejar-maven-plugin</artifactId>
<executions>
<execution>
<configuration>
<mainClass>${fully.qualified.main.class}</mainClass>
<attachToBuild>true</attachToBuild>
<!-- https://code.google.com/p/onejar-maven-plugin/issues/detail?id=8 -->
<!-- classifier>onejar</classifier -->
<filename>${project.build.finalName}-onejar.${project.packaging}</filename>
</configuration>
<goals>
<goal>one-jar</goal>
</goals>
</execution>
</executions>
</plugin>
Spring Boot Maven插件
赞成的意见欺骗添加可能不必要的Spring和Spring Boot相关类。
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<classifier>spring-boot</classifier>
<mainClass>${fully.qualified.main.class}</mainClass>
</configuration>
</execution>
</executions>
</plugin>
您有target/${project.build.finalName}-spring-boot.jar。
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>
它的工作原理如下:
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>
解包必须处于生成资源阶段,否则将不作为资源包含。
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>