如何使用奥德在org.apache.maven.AbstractMavenLifecycleParticipant

Question

我跟着这个例子中，以获得所需的依赖注入我的AbtractMavenLifecyleParticipant：

• http://www.sonatype.com/people/2011/01/how-to-use-aether-in-maven-plugins/

• http://maven.apache.org/examples/maven-3-lifecycle-extensions.html

'afterProjectsRead'被完美调用，但是repoSystem，repoSession和remoteRepos总是'null ”。

如何从AbstractMavenLifecyleParticipant中获取这些对象？

import org.apache.maven.AbstractMavenLifecycleParticipant; 
import org.apache.maven.MavenExecutionException; 
import org.apache.maven.execution.MavenSession; 
import org.codehaus.plexus.component.annotations.Component; 
import org.sonatype.aether.RepositorySystem; 
import org.sonatype.aether.RepositorySystemSession; 
import org.sonatype.aether.repository.RemoteRepository; 

@Component(role = AbstractMavenLifecycleParticipant.class, hint = "skipper") 
public class ModuleSkipperLifecycleParticipant extends AbstractMavenLifecycleParticipant { 

    /** 
    * @component 
    */ 
    private RepositorySystem repoSystem; 

    /** 
    * @parameter default-value="${repositorySystemSession}" 
    * @readonly 
    */ 
    private RepositorySystemSession repoSession; 

    /** 
    * @parameter default-value="${project.remotePluginRepositories}" 
    * @readonly 
    */ 
    private List<RemoteRepository> remoteRepos; 

    @Override 
    public void afterProjectsRead(MavenSession session) throws MavenExecutionException { 
     super.afterProjectsRead(session); 

     System.out.println("repoSession: " + repoSession); 
     System.out.println("repoSystem: " + repoSystem); 
     System.out.println("remoteRepos: " + remoteRepos); 

    } 
} 

Answer 1

这是我们如何做到这一点的jcabi-aether：

final File repo = this.session.getLocalRepository().getBasedir(); 
final Collection<Artifact> deps = new Aether(this.getProject(), repo).resolve(
    new DefaultArtifact("junit", "junit-dep", "", "jar", "4.10"), 
    JavaScopes.RUNTIME 
); 

也许你可以只使用库，而不是自己写的吧..