我是初学者,不懂很多东西.我可以构建简单的可执行jar,但是如何将multimodule maven项目构建成可执行的jar对我而言是魔术.所以我有三个项目.
家长：
家长：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>Test</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
<module>Main</module>
<module>Dep</module>
</modules>
</project>
和两个孩子项目：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>Test</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>Main</artifactId>
<dependencies>
<dependency>
<groupId>org.example</groupId>
<artifactId>Dep</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
和：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>Test</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>Dep</artifactId>
</project>
主模块主要有main方法(lol)
public class Main {
public static void main(String[] args) {
Hello hello = new Hello();
System.out.println(hello.sayHello());
}
}
“类别”在“Dep”模块中定义.我应该添加到我的poms来构建可执行jar与Main类从主模块作为入口点？
解决方法
你需要改变你的pom为人造物主.
您需要添加maven-assembly-plugin
您需要添加maven-assembly-plugin
在配置中,您可以选择在清单中指定mainClass.这应该是Main类的完全限定名称.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.example</groupId>
<artifactId>Test</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>Main</artifactId>
<properties>
<!-- plugins -->
<maven.assembly.plugin.version>2.4</maven.assembly.plugin.version>
<!-- dependencies -->
<dep.version>1.0-SNAPSHOT</dep.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>Main</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencies>
<dependency>
<groupId>org.example</groupId>
<artifactId>Dep</artifactId>
<version>${dep.version}</version>
</dependency>
</dependencies>
</project>
在父项目上启动构建之后,应该在模块Main的目标子文件夹中创建可执行jar. (一个名为Main-1.0-SNAPSHOT-jar-with-dependencies.jar的jar是我得到的)