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配置maven使用nexus报这个错误该怎么解决？10

       先说下开发环境：

       1.apache-maven-3.1.1

        2.nexus-2.6.4-02-bundle

        3.jdk1.7.0_45

 

        最近开始使用maven构建项目（因为它实在太好用了），不过maven每次构建项目都要依赖中央仓库，这很不合理，所以使用了Nexus搭建了本地仓库，不过本地仓库搭建完成以后运行第一个命令mvn help:system就报了错，利用mvn -e help:system查看报错信息看了半天也没有头绪，下面就是这个报错信息：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-help-plugin:2.2:system (default-cli) on project standalone-pom: Execution default-cli of goal org.apache.maven.plugins:maven-help-plugin:2.2:system failed: Plugin org.apache.maven.plugins:maven-help-plugin:2.2 or one of its dependencies could not be resolved: Failed to collect dependencies at org.apache.maven.plugins:maven-help-plugin:jar:2.2 -> org.apache.maven.plugin-tools:maven-plugin-tools-api:jar:2.4.3: Failed to read artifact descriptor for org.apache.maven.plugin-tools:maven-plugin-tools-api:jar:2.4.3: Failure to find org.apache.maven:maven-parent:pom:8 in http://127.0.0.1:8081/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of roger-nexus has elapsed or updates are forced -> [Help 1]org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-help-plugin:2.2:system (default-cli) on project standalone-pom: Execution default-cli of goal org.apache.maven.plugins:maven-help-plugin:2.2:system failed: Plugin org.apache.maven.plugins:maven-help-plugin:2.2 or one of its dependencies could not be resolved: Failed to collect dependencies at org.apache.maven.plugins:maven-help-plugin:jar:2.2 -> org.apache.maven.plugin-tools:maven-plugin-tools-api:jar:2.4.3
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.apache.maven.plugins:maven-help-plugin:2.2:system failed: Pluginorg.apache.maven.plugins:maven-help-plugin:2.2 or one of its dependencies couldnot be resolved: Failed to collect dependencies at org.apache.maven.plugins:maven-help-plugin:jar:2.2 -> org.apache.maven.plugin-tools:maven-plugin-tools-api:jar:2.4.3
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:87)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
... 19 more
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.plugins:maven-help-plugin:2.2 or one of its dependencies could not be resolved: Failed to collect dependencies at org.apache.maven.plugins:maven-help-plugin:jar:2.2 -> org.apache.maven.plugin-tools:maven-plugin-tools-api:jar:2.4.3
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:204)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm(DefaultMavenPluginManager.java:357)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm(DefaultMavenPluginManager.java:325)
at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm(DefaultBuildPluginManager.java:180)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:83)
... 20 more
Caused by: org.eclipse.aether.collection.DependencyCollectionException: Failed to collect dependencies at org.apache.maven.plugins:maven-help-plugin:jar:2.2 ->org.apache.maven.plugin-tools:maven-plugin-tools-api:jar:2.4.3
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:292)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:317)
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:192)
... 24 more
Caused by: org.eclipse.aether.resolution.ArtifactDescriptorException: Failed toread artifact descriptor for org.apache.maven.plugin-tools:maven-plugin-tools-ap
i:jar:2.4.3
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:370)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:217)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:461)
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:261)
... 26 more
Caused by: org.apache.maven.model.resolution.UnresolvableModelException: Failure to find org.apache.maven:maven-parent:pom:8 in http://127.0.0.1:8081/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of roger-nexus has elapsed or updates are for
ced
at org.apache.maven.repository.internal.DefaultModelResolver.resolveModel(DefaultModelResolver.java:126)
at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultModelBuilder.java:817)
at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:669)
at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:307)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:361)
... 29 more
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.apache.maven:maven-parent:pom:8 in http://127.0.0.1:8081/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of roger-nexus has elapsed or updates are forced
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:239)
at org.apache.maven.repository.internal.DefaultModelResolver.resolveModel(DefaultModelResolver.java:122)
... 33 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find org.apache.maven:maven-parent:pom:8 in http://127.0.0.1:8081/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of roger-nexus has elapsed or updates are forced
at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:232)
at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:599)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:518)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:436)
... 36 more
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException

        我搜索了一部分报错信息，参考了Stack Overflow上的一些问题，猜测有可能是有些网站被墙所以无法下载一些.pom文件，不过当我将我的setting.xml中关于nexus的配置注释掉以后mvn help:system完全可以正常运行，所以应该是setting.xml的设置有问题：

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" 
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
  <localRepository>D:/DeveloperKit/maven_repos</localRepository>
  <pluginGroups>
  </pluginGroups>

  <proxies>
  </proxies>

  <servers>
    <server>
      <id>roger-nexus</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
  </servers>

  <mirrors>
     <mirror>
      <id>roger-nexus</id>
      <mirrorOf>*</mirrorOf>
      <name>Mirror of roger</name>
      <url>http://127.0.0.1:8081/nexus/content/groups/public</url>
    </mirror>
  </mirrors>

  <profiles>
    <profile>
      <id>jdk-1.7</id>
      <activation>
        <jdk>1.7</jdk>
      </activation>
      <repositories>
        <repository>
          <id>jdk17</id>
          <name>Repository for JDK 1.7 builds</name>
          <url>http://127.0.0.1:8081/nexus/content/groups/public/</url>
          <layout>default</layout>
          <snapshotPolicy>always</snapshotPolicy>
        </repository>
      </repositories>
    </profile>
  </profiles>

  <activeProfiles>
    <activeProfile>jdk-1.7</activeProfile>
  </activeProfiles>
</settings>

所以希望能有人帮我看看这个配置文件到底有什么问题

Java项目管理mavennexus构建工具 
2014年1月02日 12:53

1个答案 按时间排序 按投票排序

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先执行 mvn help:system -U 再看log，现在的log没有实际信息

2014年1月02日 13:56

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