Sto cercando di generare un jar eseguibile per un piccolo progetto domestico chiamato "logmanager" usando Maven, proprio come questo:
Come posso creare un JAR eseguibile con dipendenze utilizzando Maven?
Ho aggiunto lo snippet mostrato lì al pom.xml e ho eseguito mvn assembly: assembly. Genera due file jar in logmanager / target: logmanager-0.1.0.jar e logmanager-0.1.0-jar-with-dependencies.jar. Ricevo un errore quando faccio doppio clic sul primo barattolo:
Could not find the main class: com.gorkwobble.logmanager.LogManager. Program will exit.Un errore leggermente diverso quando faccio doppio clic su jar-with-dependencies.jar:
Failed to load Main-Class manifest attribute from: C:\EclipseProjects\logmanager\target\logmanager-0.1.0-jar-with-dependencies.jarHo copiato e incollato il percorso e il nome della classe e ho controllato l'ortografia nel POM. La mia classe principale si avvia bene da una configurazione di lancio di Eclipse. Qualcuno può aiutarmi a capire perché il mio file jar non funziona? Inoltre, perché ci sono due barattoli per cominciare? Fammi sapere se hai bisogno di maggiori informazioni.
Ecco il completo pom.xml, per riferimento:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gorkwobble</groupId>
<artifactId>logmanager</artifactId>
<name>LogManager</name>
<version>0.1.0</version>
<description>Systematically renames specified log files on a scheduled basis. Designed to help manage MUSHClient logging and prevent long, continuous log files.</description>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.2</version>
<!-- nothing here -->
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-beta-4</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>com.gorkwobble.logmanager.LogManager</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- commons-lang -->
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.4</version>
</dependency>
<!-- Quartz scheduler -->
<dependency>
<groupId>opensymphony</groupId>
<artifactId>quartz</artifactId>
<version>1.6.3</version>
</dependency>
<!-- Quartz 1.6.0 depends on commons collections -->
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.1</version>
</dependency>
<!-- Quartz 1.6.0 depends on commons logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1</version>
</dependency>
<!-- Quartz 1.6.0 requires JTA in non J2EE environments -->
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
<scope>runtime</scope>
</dependency>
<!-- junitx test assertions -->
<dependency>
<groupId>junit-addons</groupId>
<artifactId>junit-addons</artifactId>
<version>1.4</version>
<scope>test</scope>
</dependency>
<!-- junit dependency; FIXME: make this a separate POM -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.1</version>
</dependency>
</dependencies>
<dependencyManagement>
</dependencyManagement>
</project>