我使用Maven 3.0.4和Nexus 2.0.6 . 我已将settings.xml设置为使用单个存储库的Nexus指令 . 当maven尝试运行maven -U clean时,我收到以下错误 .
[ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its d
ependencies could not be resolved: Failed to read artifact descriptor for org.ap
ache.maven.plugins:maven-clean-plugin:jar:2.4.1: Could not find artifact org.apa
che.maven.plugins:maven-clean-plugin:pom:2.4.1 in nexus (http://localhost:8081/n
exus/content/groups/public) -> [Help 1]
如果我从设置中删除nexus镜像并直接进入maven central命令有效 . nexus中maven repo的设置显示它正在服务中,并且它位于公共组(最后列出)中 .
我不是支持访问互联网的代理人 .
这是我的settings.xml
<?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">
<offline>false</offline>
<mirrors>
<mirror>
<!--This sends everything else to /public -->
<id>nexus</id>
<mirrorOf>*</mirrorOf>
<url>http://localhost:8081/nexus/content/groups/public</url>
</mirror>
</mirrors>
<profiles>
<profile>
<id>nexus</id>
<!--Enable snapshots for the built in central repo to direct -->
<!--all requests to nexus via the mirror -->
<repositories>
<repository>
<id>central</id>
<url>http://central</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>http://central</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
<profile>
<id>maven-central</id>
<!--Enable snapshots for the built in central repo to direct -->
<!--all requests to nexus via the mirror -->
<repositories>
<repository>
<id>central</id>
<url>http://repo1.maven.org/maven2/</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>http://repo1.maven.org/maven2/</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
<activeProfiles>
<!--make the profile active all the time -->
<activeProfile>nexus</activeProfile>
</activeProfiles>
</settings>
3 回答
确保正确配置了
Central
代理存储库,并且代理的URL为http://repo1.maven.org/maven2/
. 检查您是否可以在存储库的URL中看到缓存的工件,应该是http://localhost:8081/nexus/content/repositories/central/org/apache/maven/plugins/maven-clean-plugin/2.4.0/maven-clean-plugin-2.4.1.pom
.确保您有一个中央代理,
http://localhost:8081/nexus/content/repositories/central/
中是否列出了任何内容 .如果您位于代理后面,则可以在“管理” - >“Nexus”窗格的“默认HTTP代理设置(可选)”部分下配置代理 .
然后,确保
Public Repositories
组存储库配置为在其包含的存储库列表中包含Central
存储库 .如果到目前为止一切正常,请检查日志,也许那里有一条有用的消息 .
尝试直接通过网络浏览器下载:
如果这不起作用,请检查sonatype-work / nexus / logs / nexus.log文件以获取有关失败的更多信息 .
我有与OP相同的症状(Nexus没有镜像人工制品)并发现它是由路由定义引起的 .
例如,您在Maven Central中有一个工件
org.blabla:blabla-api:1.0
. 但是,您已设置匹配.*/org/blabla/.*
的路由,该路由强制任何匹配的请求仅在代理存储库中查找blabla-public
...但遗憾的是blabla-public
不包含该特定工件 .解决方案:更新路由以将Central添加到路由使用的repos列表,或删除路由 .
(这可能不是OP的原因,但我发布它以防万一它可以帮助任何其他访问者 . )