我正在尝试通过此解决方案 [1] 中提到的以编程方式获取给定工件的所有 maven 依赖项。
我正在尝试获取ch.qos.logback:logback-classic:1.2.3.
public static void main(final String[] args) throws Exception {
DefaultServiceLocator locator = MavenRepositorySystemUtils.newServiceLocator();
RepositorySystem system = newRepositorySystem(locator);
RepositorySystemSession session = newSession(system);
RemoteRepository central = new RemoteRepository.Builder("central", "default", "http://repo1.maven.org/maven2/").build();
String groupId = "ch.qos.logback";
String artifactId = "logback-classic";
String version = "1.2.3";
String dep = groupId + ":" + artifactId + ":" + version;
Artifact artifact = new DefaultArtifact(dep);
CollectRequest collectRequest = new CollectRequest(new Dependency(artifact, JavaScopes.COMPILE), Arrays.asList(central));
DependencyFilter filter = DependencyFilterUtils.classpathFilter(JavaScopes.COMPILE);
DependencyRequest request = new DependencyRequest(collectRequest, filter);
DependencyResult result = system.resolveDependencies(session, request);
for (ArtifactResult artifactResult : result.getArtifactResults()) {
System.out.println(artifactResult.getArtifact().getFile());
}
}
private static RepositorySystem newRepositorySystem(DefaultServiceLocator locator) {
locator.addService(RepositoryConnectorFactory.class, BasicRepositoryConnectorFactory.class);
locator.addService(TransporterFactory.class, FileTransporterFactory.class);
locator.addService(TransporterFactory.class, HttpTransporterFactory.class);
return locator.getService(RepositorySystem.class);
}
private static RepositorySystemSession newSession(RepositorySystem system) {
DefaultRepositorySystemSession session = MavenRepositorySystemUtils.newSession();
LocalRepository localRepo = new LocalRepository("target/local-repo");
session.setLocalRepositoryManager(system.newLocalRepositoryManager(session, localRepo));
return session;
}
这是我在运行 main 方法时得到的错误堆栈跟踪。
Exception in thread "main" org.eclipse.aether.resolution.DependencyResolutionException: Failed to read artifact descriptor for ch.qos.logback:logback-classic:jar:1.2.3
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:387)
at sample.MavenResolver.main(MavenResolver.java:46)
Caused by: org.eclipse.aether.collection.DependencyCollectionException: Failed to read artifact descriptor for ch.qos.logback:logback-classic:jar:1.2.3
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:208)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:341)
... 1 more
Caused by: org.eclipse.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for ch.qos.logback:logback-classic:jar:1.2.3
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:282)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:198)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:202)
... 2 more
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not transfer artifact ch.qos.logback:logback-classic:pom:1.2.3 from/to central (http://repo1.maven.org/maven2/): HTTPS Required (501)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:267)
... 4 more
Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact ch.qos.logback:logback-classic:pom:1.2.3 from/to central (http://repo1.maven.org/maven2/): HTTPS Required (501)
at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:43)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:355)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:581)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:249)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
... 7 more
Caused by: org.apache.http.client.HttpResponseException: HTTPS Required (501)
at org.eclipse.aether.transport.http.HttpTransporter.handleStatus(HttpTransporter.java:519)
at org.eclipse.aether.transport.http.HttpTransporter.execute(HttpTransporter.java:322)
at org.eclipse.aether.transport.http.HttpTransporter.implGet(HttpTransporter.java:274)
at org.eclipse.aether.spi.connector.transport.AbstractTransporter.get(AbstractTransporter.java:59)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:447)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:350)
... 12 more