以编程方式从远程Maven存储库下载工件 [英] Downloading artifacts from remote maven repo programmatically

问题描述

我正在使用Aether实用程序库来管理依赖性.当我尝试下载Maven工件的传递依赖时，我得到了

I am using Aether utility library to manage deppendencies. When I try to download the transitive dependencies for a maven artifact I get a

java.io.IOException: Invalid Content-Range header for partial download

错误.我在这里的以太示例中使用几乎相同的代码

error. I am using almost the same code from the aether example here https://github.com/eclipse/aether-demo/blob/master/aether-demo-snippets/src/main/java/org/eclipse/aether/examples/ResolveTransitiveDependencies.java

  /**
  * Resolves the transitive (compile) dependencies of an artifact.
   */

公共类ResolveTransitiveDependencies {

public class ResolveTransitiveDependencies {

public static void main( String[] args )
    throws Exception
{
    System.out.println( "------------------------------------------------------------" );
    System.out.println( ResolveTransitiveDependencies.class.getSimpleName() );

    RepositorySystem system = Booter.newRepositorySystem();

    RepositorySystemSession session = Booter.newRepositorySystemSession( system );

    Artifact artifact = new DefaultArtifact( "org.eclipse.aether:aether-impl:1.0.0.v20140518" );

    DependencyFilter classpathFlter = DependencyFilterUtils.classpathFilter( JavaScopes.COMPILE );

    CollectRequest collectRequest = new CollectRequest();
    collectRequest.setRoot( new Dependency( artifact, JavaScopes.COMPILE ) );
    collectRequest.setRepositories( Booter.newRepositories( system, session ) );

    DependencyRequest dependencyRequest = new DependencyRequest( collectRequest, classpathFlter );

    List<ArtifactResult> artifactResults =
        system.resolveDependencies( session, dependencyRequest ).getArtifactResults();

    for ( ArtifactResult artifactResult : artifactResults )
    {
        System.out.println( artifactResult.getArtifact() + " resolved to " + artifactResult.getArtifact().getFile() );
    }
}

}

推荐答案

我通过删除本地存储库中的工件jar解决了此问题，但是我仍然不确定为什么会发生这种异常，它似乎是在网络处于不稳定.希望它会有所帮助.

I resolved this problem by removing the artifact jars in local repository, however I'm still not sure why this exception happens, it seems to occur when the network is not stable. Hope it will help.

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