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
您可以将以下内容添加到pom.xml文件中:
<build>
<defaultGoal>install</defaultGoal>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.mycompany.package.MainClass</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>com.mycompany.package.MainClass</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-my-jar-with-dependencies</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
然后,您必须通过控制台切换到pom.xml文件所在的目录。然后,您必须执行mvn assembly:single,然后希望构建具有依赖关系的可执行JAR文件。您可以在切换到带有cd的输出(目标)目录时检查它/目标并使用类似于java-jarmavenproject1-1.0-SNAPSHOT-JAR-with-dependencies.JAR的命令启动JAR。
我用Apache Maven 3.0.3测试了这一点。
其他回答
要从命令行本身创建可执行JAR,只需从项目路径运行以下命令:
mvn assembly:assembly
我想将我的Spring应用程序(使用Apereo Foundation的CAS客户端)迁移到Spring Boot 1.5。我遇到了很多问题,比如:
target/cas-client-web.jar中没有主清单属性
我试图创建一个具有所有依赖项的唯一JAR文件。在互联网上搜索后,我能够用以下几句话做到这一点:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<mainClass>${start-class}</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>${start-class}</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
开始上课是我的主要课程:
<properties>
<java.version>1.8</java.version>
<start-class>com.test.Application</start-class>
</properties>
我的申请是:
package com.test;
import java.util.Arrays;
import com.test.TestProperties;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
@EnableAutoConfiguration
@EnableConfigurationProperties({TestProperties.class})
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Bean
public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
return args -> {
System.out.println("Let's inspect the beans provided by Spring Boot:");
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
System.out.println(beanName);
}
};
}
}
我比较了本文中提到的树插件。我生成了两个JAR文件和一个包含所有JAR文件的目录。我比较了结果,肯定maven shade插件是最好的。
我的挑战是我有多个需要合并的Spring资源,以及jax-rs和JDBC服务。与maven汇编插件相比,它们都被shade插件正确合并。在这种情况下,除非您将它们复制到自己的资源文件夹中并手动合并一次,否则Spring将失败。
两个插件都输出正确的依赖树。我有多个作用域,如测试、提供、编译等。两个插件都跳过了测试和提供。他们都生成了相同的清单,但我能够使用他们的转换器使用shade插件合并许可证。使用maven依赖插件当然不会有这些问题,因为JAR文件没有被提取。但正如其他人所指出的,您需要携带一个额外的文件才能正常工作。
以下是pom.xml文件的片段:
<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>
<includeScope>compile</includeScope>
<excludeTransitive>true</excludeTransitive>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.6</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.rbccm.itf.cdd.poller.landingzone.LandingZonePoller</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-my-jar-with-dependencies</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<shadedArtifactAttached>false</shadedArtifactAttached>
<keepDependenciesWithProvidedScope>false</keepDependenciesWithProvidedScope>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/services/javax.ws.rs.ext.Providers</resource>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.factories</resource>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.handlers</resource>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.schemas</resource>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.tooling</resource>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"/>
<transformer implementation="org.apache.maven.plugins.shade.resource.ApacheLicenseResourceTransformer">
</transformer>
</transformers>
</configuration>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
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/
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>