我可以通过私有托管代理中的 Azure DevOps 工件访问 Maven 中心吗？
Can I reach Maven central through Azure DevOps artifacts from a private hosted agent?
我在专用网络中工作，尝试为 Maven 项目构建管道。为了在我们的专用网络上使用工具，我正在尝试使用专用托管代理。现在我知道从我们的网络访问 Maven Central 有一些限制，通常我们通过 Nexus 使用代理。
借助 Azure 工件中新的 Maven 上游功能，我想我可以将其用作 'proxy'。
不幸的是，构建失败了，它似乎试图直接访问 Maven Central（不使用我的提要），这自然会失败。在我的输出和设置下面
最后是我的构建输出：
2019-10-02T07:27:06.0094285Z Task : Maven
2019-10-02T07:27:06.0094336Z Description : Build, test, and deploy with Apache Maven
2019-10-02T07:27:06.0094403Z Version : 3.158.0
2019-10-02T07:27:06.0094449Z Author : Microsoft Corporation
2019-10-02T07:27:06.0094522Z Help : https://docs.microsoft.com/azure/devops/pipelines/tasks/build/maven
2019-10-02T07:27:06.0094582Z ==============================================================================
2019-10-02T07:27:06.8762822Z [command]C:\windows\system32\reg.exe query "HKLM\SOFTWARE\JavaSoft\Java Development Kit.8" /v JavaHome /reg:64
2019-10-02T07:27:06.8762932Z
2019-10-02T07:27:06.8763016Z HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Development Kit.8
2019-10-02T07:27:06.8763085Z JavaHome REG_SZ C:\Program Files\Java\jdk1.8.0_221
2019-10-02T07:27:06.8763156Z
2019-10-02T07:27:06.9319606Z [command]C:\windows\system32\cmd.exe /D /S /C "C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\mvn.cmd -version"
2019-10-02T07:27:07.4696051Z Apache Maven 3.6.1 (d66c9c0b3152b2e69ee9bac180bb8fcc8e6af555; 2019-04-04T19:00:29Z)
2019-10-02T07:27:07.4700024Z Maven home: C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\..
2019-10-02T07:27:07.4709043Z Java version: 1.8.0_221, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk1.8.0_221\jre
2019-10-02T07:27:07.4725586Z Default locale: en_US, platform encoding: Cp1252
2019-10-02T07:27:07.4726158Z OS name: "windows server 2016", version: "10.0", arch: "amd64", family: "windows"
2019-10-02T07:27:07.5446027Z SYSTEMVSSCONNECTION exists true
2019-10-02T07:27:07.7710829Z SYSTEMVSSCONNECTION exists true
2019-10-02T07:27:08.0375908Z ##[warning]The settings for the feed or repository already exists in the xml file.
2019-10-02T07:27:08.0492975Z SYSTEMVSSCONNECTION exists true
2019-10-02T07:27:08.0530287Z [command]C:\windows\system32\cmd.exe /D /S /C "C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\mvn.cmd -f C:\DATA\Agent\_work\s\pom.xml -s C:\DATA\Agent\_work\_temp\settings.xml package"
2019-10-02T07:27:09.9877350Z [INFO] Scanning for projects...
2019-10-02T07:27:10.0851393Z [INFO]
2019-10-02T07:27:10.0897285Z [INFO] ---------< com.ontestautomation.javafortesters:JavaForTesters >---------
2019-10-02T07:27:10.0941394Z [INFO] Building JavaForTesters 1.0-SNAPSHOT
2019-10-02T07:27:10.0942123Z [INFO] --------------------------------[ jar ]---------------------------------
2019-10-02T07:27:10.6741134Z Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom
2019-10-02T07:27:31.8954116Z The process 'C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\mvn.cmd' failed with exit code 1
2019-10-02T07:27:31.8954401Z [INFO] ------------------------------------------------------------------------
2019-10-02T07:27:31.8955258Z Could not retrieve code analysis results - Maven run failed.
2019-10-02T07:27:31.8955423Z [INFO] BUILD FAILURE
2019-10-02T07:27:31.8955503Z [INFO] ------------------------------------------------------------------------
2019-10-02T07:27:31.8955591Z [INFO] Total time: 21.842 s
2019-10-02T07:27:31.8955658Z [INFO] Finished at: 2019-10-02T07:27:31Z
2019-10-02T07:27:31.8955759Z [INFO] ------------------------------------------------------------------------
2019-10-02T07:27:31.8955928Z [ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.6 from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.36.215] failed: Connection timed out: connect -> [Help 1]
2019-10-02T07:27:31.8956093Z [ERROR]
2019-10-02T07:27:31.8958075Z [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
2019-10-02T07:27:31.8958201Z [ERROR] Re-run Maven using the -X switch to enable full debug logging.
2019-10-02T07:27:31.8958274Z [ERROR]
2019-10-02T07:27:31.8958331Z [ERROR] For more information about the errors and possible solutions, please read the following articles:
2019-10-02T07:27:31.8958423Z [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
2019-10-02T07:27:33.1008909Z No test result files matching C:\DATA\Agent\_work\s\**\surefire-reports\TEST-*.xml were found, so publishing JUnit test results is being skipped.
2019-10-02T07:27:33.1015611Z ##[error]Build failed.
2019-10-02T07:27:33.1185161Z ##[section]Finishing: Maven ```
Anyone any ideas?
Thanks!
Can I reach Maven central through Azure DevOps artifacts from a private hosted agent?
答案应该是肯定的。
之所以仍然直接到达Maven Central，是因为所有的pom文件都继承自maven super POM:
http://maven.apache.org/ref/3.0.4/maven-model-builder/super-pom.html
其中包含此条目：
<repositories>
<repository>
<id>central</id>
<name>Central Repository</name>
<url>http://repo.maven.apache.org/maven2</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
因此，我们可以使用 Azure DevOps 工件在您的 pom 中覆盖它：
<repositories>
<repository>
<id>central</id>
<url>https://pkgs.dev.azure.com/xxx/xxx</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>https://pkgs.dev.azure.com/xxx/xxx</url>
<releases><enabled>false</enabled></releases>
</pluginRepository>
</pluginRepositories>
或者您可以使用 maven Mirrors 将特定存储库替换为您自己的内部存储库。
查看有关此问题的更多详细信息，请查看this ticket。
此外，您还可以在您的 pom 中设置 Proxies。
希望对您有所帮助。
我在专用网络中工作，尝试为 Maven 项目构建管道。为了在我们的专用网络上使用工具，我正在尝试使用专用托管代理。现在我知道从我们的网络访问 Maven Central 有一些限制，通常我们通过 Nexus 使用代理。
借助 Azure 工件中新的 Maven 上游功能，我想我可以将其用作 'proxy'。
不幸的是，构建失败了，它似乎试图直接访问 Maven Central（不使用我的提要），这自然会失败。在我的输出和设置下面
最后是我的构建输出：
2019-10-02T07:27:06.0094285Z Task : Maven
2019-10-02T07:27:06.0094336Z Description : Build, test, and deploy with Apache Maven
2019-10-02T07:27:06.0094403Z Version : 3.158.0
2019-10-02T07:27:06.0094449Z Author : Microsoft Corporation
2019-10-02T07:27:06.0094522Z Help : https://docs.microsoft.com/azure/devops/pipelines/tasks/build/maven
2019-10-02T07:27:06.0094582Z ==============================================================================
2019-10-02T07:27:06.8762822Z [command]C:\windows\system32\reg.exe query "HKLM\SOFTWARE\JavaSoft\Java Development Kit.8" /v JavaHome /reg:64
2019-10-02T07:27:06.8762932Z
2019-10-02T07:27:06.8763016Z HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Development Kit.8
2019-10-02T07:27:06.8763085Z JavaHome REG_SZ C:\Program Files\Java\jdk1.8.0_221
2019-10-02T07:27:06.8763156Z
2019-10-02T07:27:06.9319606Z [command]C:\windows\system32\cmd.exe /D /S /C "C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\mvn.cmd -version"
2019-10-02T07:27:07.4696051Z Apache Maven 3.6.1 (d66c9c0b3152b2e69ee9bac180bb8fcc8e6af555; 2019-04-04T19:00:29Z)
2019-10-02T07:27:07.4700024Z Maven home: C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\..
2019-10-02T07:27:07.4709043Z Java version: 1.8.0_221, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk1.8.0_221\jre
2019-10-02T07:27:07.4725586Z Default locale: en_US, platform encoding: Cp1252
2019-10-02T07:27:07.4726158Z OS name: "windows server 2016", version: "10.0", arch: "amd64", family: "windows"
2019-10-02T07:27:07.5446027Z SYSTEMVSSCONNECTION exists true
2019-10-02T07:27:07.7710829Z SYSTEMVSSCONNECTION exists true
2019-10-02T07:27:08.0375908Z ##[warning]The settings for the feed or repository already exists in the xml file.
2019-10-02T07:27:08.0492975Z SYSTEMVSSCONNECTION exists true
2019-10-02T07:27:08.0530287Z [command]C:\windows\system32\cmd.exe /D /S /C "C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\mvn.cmd -f C:\DATA\Agent\_work\s\pom.xml -s C:\DATA\Agent\_work\_temp\settings.xml package"
2019-10-02T07:27:09.9877350Z [INFO] Scanning for projects...
2019-10-02T07:27:10.0851393Z [INFO]
2019-10-02T07:27:10.0897285Z [INFO] ---------< com.ontestautomation.javafortesters:JavaForTesters >---------
2019-10-02T07:27:10.0941394Z [INFO] Building JavaForTesters 1.0-SNAPSHOT
2019-10-02T07:27:10.0942123Z [INFO] --------------------------------[ jar ]---------------------------------
2019-10-02T07:27:10.6741134Z Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom
2019-10-02T07:27:31.8954116Z The process 'C:\DATA\Choco\lib\maven\apache-maven-3.6.1\bin\mvn.cmd' failed with exit code 1
2019-10-02T07:27:31.8954401Z [INFO] ------------------------------------------------------------------------
2019-10-02T07:27:31.8955258Z Could not retrieve code analysis results - Maven run failed.
2019-10-02T07:27:31.8955423Z [INFO] BUILD FAILURE
2019-10-02T07:27:31.8955503Z [INFO] ------------------------------------------------------------------------
2019-10-02T07:27:31.8955591Z [INFO] Total time: 21.842 s
2019-10-02T07:27:31.8955658Z [INFO] Finished at: 2019-10-02T07:27:31Z
2019-10-02T07:27:31.8955759Z [INFO] ------------------------------------------------------------------------
2019-10-02T07:27:31.8955928Z [ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.6 from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.36.215] failed: Connection timed out: connect -> [Help 1]
2019-10-02T07:27:31.8956093Z [ERROR]
2019-10-02T07:27:31.8958075Z [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
2019-10-02T07:27:31.8958201Z [ERROR] Re-run Maven using the -X switch to enable full debug logging.
2019-10-02T07:27:31.8958274Z [ERROR]
2019-10-02T07:27:31.8958331Z [ERROR] For more information about the errors and possible solutions, please read the following articles:
2019-10-02T07:27:31.8958423Z [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
2019-10-02T07:27:33.1008909Z No test result files matching C:\DATA\Agent\_work\s\**\surefire-reports\TEST-*.xml were found, so publishing JUnit test results is being skipped.
2019-10-02T07:27:33.1015611Z ##[error]Build failed.
2019-10-02T07:27:33.1185161Z ##[section]Finishing: Maven ```
Anyone any ideas?
Thanks!
Can I reach Maven central through Azure DevOps artifacts from a private hosted agent?
答案应该是肯定的。
之所以仍然直接到达Maven Central，是因为所有的pom文件都继承自maven super POM:
http://maven.apache.org/ref/3.0.4/maven-model-builder/super-pom.html
其中包含此条目：
<repositories>
<repository>
<id>central</id>
<name>Central Repository</name>
<url>http://repo.maven.apache.org/maven2</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
因此，我们可以使用 Azure DevOps 工件在您的 pom 中覆盖它：
<repositories>
<repository>
<id>central</id>
<url>https://pkgs.dev.azure.com/xxx/xxx</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>https://pkgs.dev.azure.com/xxx/xxx</url>
<releases><enabled>false</enabled></releases>
</pluginRepository>
</pluginRepositories>
或者您可以使用 maven Mirrors 将特定存储库替换为您自己的内部存储库。
查看有关此问题的更多详细信息，请查看this ticket。
此外，您还可以在您的 pom 中设置 Proxies。
希望对您有所帮助。