时间戳

首页 > 解决方案 > 谁在我的构建中配置所有这些 Maven 存储库？

maven - 谁在我的构建中配置所有这些 Maven 存储库？

问题描述

我正在运行mvn dependency:list-repositories以找出 maven 实际考虑的存储库及其顺序（我需要它来解决我的settings.xml配置问题）。

对于一个在其文件（父模块和子模块）中不使用任何<repository>标签的更大项目，pom.xml我得到的存储库比我预期的要多得多。我原本期望只获得 Maven 中央存储库，但我得到：

[INFO] Repositories used by this build:
[INFO]        id: sonatype-nexus-snapshots
      url: https://oss.sonatype.org/content/repositories/snapshots
   layout: default
snapshots: [enabled => true, update => daily]
 releases: [enabled => false, update => daily]

[INFO]        id: apache.snapshots
      url: http://repository.apache.org/snapshots
   layout: default
snapshots: [enabled => true, update => daily]
 releases: [enabled => false, update => daily]

[INFO]        id: netbeans
      url: http://bits.netbeans.org/nexus/content/groups/netbeans
   layout: default
snapshots: [enabled => false, update => daily]
 releases: [enabled => true, update => daily]

[INFO]        id: spring-libs-snapshot
      url: https://repo.spring.io/libs-snapshot
   layout: default
snapshots: [enabled => true, update => daily]
 releases: [enabled => true, update => daily]

[INFO]        id: apache.snapshots
      url: https://repository.apache.org/snapshots
   layout: default
snapshots: [enabled => true, update => daily]
 releases: [enabled => false, update => daily]

[INFO]        id: spring-libs-release
      url: https://repo.spring.io/libs-release
   layout: default
snapshots: [enabled => true, update => daily]
 releases: [enabled => true, update => daily]

[INFO]        id: central
      url: https://repo.maven.apache.org/maven2
   layout: default
snapshots: [enabled => false, update => daily]
 releases: [enabled => true, update => daily]

我搜索了超级 pom 的位置，但没有找到绝对的答案。我仍然查看了指向的位置：

但我从来没有看到过别的东西，除了：

<repositories>
    <repository>
        <id>central</id>
        <name>Maven Repository Switchboard</name>
        <layout>default</layout>
        <url>http://repo1.maven.org/maven2</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>

那么，所有这些存储库在哪里配置或谁自动配置/隐含它们？

标签： mavenrepositorymaven-plugin

解决方案

我的解决方案实际上是命令mvn help:evaluate，然后在出现提示时询问${project.repositories}. 我在这个 SO 答案中找到了这个（在这个问题中，用户想要获取默认存储库列表，而我想获取实际配置的存储库列表）。

...
[INFO] Enter the Maven expression i.e. ${project.groupId} or 0 to exit?:
${project.repositories}

结果是对 POM 文件可见的存储库的实际列表：

<repositories>
  <repository>
    <id>confluent</id>
    <url>http://packages.confluent.io/maven/</url>
    <layout>default</layout>
  </repository>
  <repository>
    <id>central</id>
    <name>Central Repository</name>
    <url>https://repo.maven.apache.org/maven2</url>
    <layout>default</layout>
    <location>
      <lineNumber>27</lineNumber>
      <columnNumber>17</columnNumber>
      <source>
        <modelId>org.apache.maven:maven-model-builder:3.6.3:super-pom</modelId>
        <location>jar:file:/usr/local/Cellar/maven/3.6.3/libexec/lib/maven-model-builder-3.6.3.jar!/org/apache/maven/model/pom-4.0.0.xml</location>
      </source>
    </location>
    <idLocation>
      <lineNumber>28</lineNumber>
      <columnNumber>11</columnNumber>
      <source reference="../../location/source"/>
    </idLocation>
    <nameLocation>
      <lineNumber>29</lineNumber>
      <columnNumber>13</columnNumber>
      <source reference="../../location/source"/>
    </nameLocation>
    <urlLocation>
      <lineNumber>30</lineNumber>
      <columnNumber>12</columnNumber>
      <source reference="../../location/source"/>
    </urlLocation>
    <layoutLocation>
      <lineNumber>31</lineNumber>
      <columnNumber>15</columnNumber>
      <source reference="../../location/source"/>
    </layoutLocation>
    <snapshots>
      <enabled>false</enabled>
      <location>
        <lineNumber>32</lineNumber>
        <columnNumber>18</columnNumber>
        <source reference="../../../location/source"/>
      </location>
      <enabledLocation>
        <lineNumber>33</lineNumber>
        <columnNumber>18</columnNumber>
        <source reference="../../../location/source"/>
      </enabledLocation>
    </snapshots>
  </repository>
</repositories>

推荐阅读