import org.sonatype.aether.connector.file.FileRepositoryConnectorFactory; //导入依赖的package包/类
public ArtifactResolver(String localRepositoryDir, List<String> remoteRepositoryUris)
{
    MavenServiceLocator locator = new MavenServiceLocator();
    locator.addService(RepositoryConnectorFactory.class, FileRepositoryConnectorFactory.class);
    locator.addService(RepositoryConnectorFactory.class, AsyncRepositoryConnectorFactory.class);
    repositorySystem = locator.getService(RepositorySystem.class);

    repositorySystemSession = new MavenRepositorySystemSession();

    LocalRepositoryManager localRepositoryManager = new SimpleLocalRepositoryManager(localRepositoryDir);
    repositorySystemSession.setLocalRepositoryManager(localRepositoryManager);

    repositorySystemSession.setTransferListener(new ConsoleTransferListener());
    repositorySystemSession.setRepositoryListener(new ConsoleRepositoryListener());

    List<RemoteRepository> repositories = new ArrayList<>(remoteRepositoryUris.size());
    int index = 0;
    for (String repositoryUri : remoteRepositoryUris) {
        repositories.add(new RemoteRepository("repo-" + index++, "default", repositoryUri));
    }
    this.repositories = Collections.unmodifiableList(repositories);
}
 

import org.sonatype.aether.connector.file.FileRepositoryConnectorFactory; //导入依赖的package包/类
public static RepositorySystem newRepositorySystem() {
  DefaultServiceLocator locator = new DefaultServiceLocator();
  locator.addService(RepositoryConnectorFactory.class, FileRepositoryConnectorFactory.class);
  locator.addService(RepositoryConnectorFactory.class, WagonRepositoryConnectorFactory.class);
  locator.setServices(WagonProvider.class, new ManualWagonProvider());

  return locator.getService(RepositorySystem.class);
}
 

import org.sonatype.aether.connector.file.FileRepositoryConnectorFactory; //导入依赖的package包/类
public static RepositorySystem repositorySystem()
{
	MavenServiceLocator locator = new MavenServiceLocator();
       locator.addService( RepositoryConnectorFactory.class, AsyncRepositoryConnectorFactory.class);
       locator.addService(RepositoryConnectorFactory.class, FileRepositoryConnectorFactory.class);

       return locator.getService( RepositorySystem.class );
}
 

import org.sonatype.aether.connector.file.FileRepositoryConnectorFactory; //导入依赖的package包/类
public static RepositorySystem newRepositorySystem()
{
  /*
   * Aether's components implement org.sonatype.aether.spi.locator.Service to ease manual wiring and using the
   * prepopulated DefaultServiceLocator, we only need to register the repository connector factories.
   */
  DefaultServiceLocator locator = new DefaultServiceLocator();
  locator.addService( RepositoryConnectorFactory.class, FileRepositoryConnectorFactory.class );
  locator.addService( RepositoryConnectorFactory.class, WagonRepositoryConnectorFactory.class );
  locator.setServices( WagonProvider.class, new ManualWagonProvider() );

  return locator.getService( RepositorySystem.class );
}
 

import org.sonatype.aether.connector.file.FileRepositoryConnectorFactory; //导入依赖的package包/类
/**
 * Build it.
 * @return The repo system.
 */
@Loggable(Loggable.DEBUG)
public RepositorySystem build() {
    final DefaultServiceLocator locator = new DefaultServiceLocator();
    locator.addService(
        RepositoryConnectorFactory.class,
        FileRepositoryConnectorFactory.class
    );
    locator.addService(
        RepositoryConnectorFactory.class,
        AsyncRepositoryConnectorFactory.class
    );
    locator.addService(
        WagonProvider.class,
        AmazonWagonProvider.class
    );
    locator.addService(
        WagonConfigurator.class,
        PlexusWagonConfigurator.class
    );
    locator.addService(
        RepositoryConnectorFactory.class,
        WagonRepositoryConnectorFactory.class
    );
    locator.addService(
        RepositorySystem.class,
        DefaultRepositorySystem.class
    );
    locator.addService(
        VersionResolver.class,
        DefaultVersionResolver.class
    );
    locator.addService(
        VersionRangeResolver.class,
        DefaultVersionRangeResolver.class
    );
    locator.addService(
        ArtifactDescriptorReader.class,
        DefaultArtifactDescriptorReader.class
    );
    final RepositorySystem system =
        locator.getService(RepositorySystem.class);
    if (system == null) {
        throw new IllegalStateException("failed to get service");
    }
    return system;
}