Maven 不解决来自私有仓库的间接依赖

Question

我有一个关于 maven 的问题。我只是将 m2e 与 eclipse mars 一起使用，maven 版本是 3.3.3。它无法解决来自我的 nexus 私有存储库的间接依赖关系。

例如有3个项目：common-A、common-B、biz-X。

• common-A 和 common-B 作为 jar 部署在 nexus 私有存储库中。
• common-B 依赖于 common-A。 biz-X 依赖于 common-B。所以 biz-X 间接依赖于 common-A。
• biz-X项目确实下载common-B成功。

问题是，biz-X 无法下载 common-A.jar。

谁能帮帮我！谢谢！

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更新1：

我有一些进展，这里是m2e的stacktrace：

org.eclipse.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for (my groupId):common-B:jar:0.0.1-SNAPSHOT
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:349)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:218)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.resolveCachedArtifactDescriptor(DefaultDependencyCollector.java:535)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.getArtifactDescriptorResult(DefaultDependencyCollector.java:519)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:409)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:363)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:351)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:254)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:316)
at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:172)
at org.apache.maven.project.DefaultProjectBuilder.resolveDependencies(DefaultProjectBuilder.java:215)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:188)
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:119)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.readMavenProject(MavenImpl.java:636)
at org.eclipse.m2e.core.internal.project.registry.DefaultMavenDependencyResolver.resolveProjectDependencies(DefaultMavenDependencyResolver.java:63)
at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refreshPhase2(ProjectRegistryManager.java:529)
at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:491)
at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:495)
at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:350)
at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:297)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration0(ProjectConfigurationManager.java:398)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$2.call(ProjectConfigurationManager.java:345)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$2.call(ProjectConfigurationManager.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1351)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:342)
at org.eclipse.m2e.core.ui.internal.UpdateMavenProjectJob.runInWorkspace(UpdateMavenProjectJob.java:77)
at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:39)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)Caused by: org.apache.maven.model.resolution.UnresolvableModelException: Could not find artifact (my groupId):root:pom:0.0.1-SNAPSHOT in public (http://192.168.1.35:8081/nexus/content/repositories/central)
at org.apache.maven.repository.internal.DefaultModelResolver.resolveModel(DefaultModelResolver.java:177)
at org.apache.maven.repository.internal.DefaultModelResolver.resolveModel(DefaultModelResolver.java:226)
at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultModelBuilder.java:978)
at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:796)
at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:325)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:340)
... 33 moreCaused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact (my groupId):root:pom:0.0.1-SNAPSHOT in public (http://192.168.1.35:8081/nexus/content/repositories/central)
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.DefaultModelResolver.resolveModel(DefaultModelResolver.java:173)
... 38 moreCaused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact (my groupId):root:pom:0.0.1-SNAPSHOT in public (http://192.168.1.35:8081/nexus/content/repositories/central)
at io.takari.aether.connector.AetherRepositoryConnector$2.wrap(AetherRepositoryConnector.java:893)
at io.takari.aether.connector.AetherRepositoryConnector$2.wrap(AetherRepositoryConnector.java:1)
at io.takari.aether.connector.AetherRepositoryConnector$GetTask.flush(AetherRepositoryConnector.java:673)
at io.takari.aether.connector.AetherRepositoryConnector.get(AetherRepositoryConnector.java:310)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
... 41 more

maven 似乎说她无法读取 common-B 的 pom 文件。但是我发现下载的common-B.jar中有一个pom.xml，位置是：

/META-INF/maven/(一些包)/common-B/pom.xml

它实际上是我在项目 common-B 的根目录中定义的 pom。 但是为什么maven不加载呢？ 或者如果这个 pom 文件不是 maven 需要的？ 或者如果 pom 文件需要从私人仓库下载？如果是，我发现 common-B-0.0.1-yyyyMMdd.(也许是一些 seq).pom 在正确的 nexus repo 目录中的 jar 文件的同一位置，maven 无法加载它？是因为我将工件部署为 SNAPSHOT 类型吗？ 或者我需要围绕“mvn deploy”操作做一些操作吗？

这些是上面的线索。希望它们有用。

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更新2：

哦，天哪……我一定是在开玩笑。我找到了原因。因为有一个我忘记部署的根 pom，所以两个常见的工件都扩展了它。现在问题解决了。谢谢各位！

Answer 1

您需要将 Release 存储库 URL 和 SNAPSHOT 存储库 URL 添加到 pom.xml（或）settings.xml

请尝试添加链接中指定的两个 URL：
Adding Snapshot Repo to pom.xml