Maven 无法从 Artifactory Repository 下载答案

【问题标题】：Maven cannot download from Artifactory RepositoryMaven 无法从 Artifactory Repository 下载
【发布时间】：2015-04-12 13:04:03
【问题描述】：

我正在尝试将我们的 Jenkins 服务器连接到我们的 Artifactory 存储库以进行构建。我在办公地点成功使用了 Jenkins 服务器，但我在使用公司网络另一部分的 Jenkins 服务器时遇到了问题。

我已禁用该作业，进入工作区并尝试直接使用mvn：

$ mvn clean
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] PROJ Generic Aggregate POM
[INFO] PROJ Generic Module
[INFO] PROJ Generic Features
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building PROJ Generic Aggregate POM 1.0.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://repo.vegicorp.net/artifactory/plugins-release/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom

然后它在吐出之前就冻结了：

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] PROJ Generic Aggregate POM ........................ FAILURE [2:06.295s]
[INFO] PROJ Generic Module ............................... SKIPPED
[INFO] PROJ Generic Features ............................. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:07.160s
[INFO] Finished at: Wed Feb 11 18:16:46 EST 2015
[INFO] Final Memory: 8M/149M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.4.1: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.4.1 from/to central (http://repo.vegicorp.net/artifactory/plugins-release): Connection to http://repo.vegicorp.net refused: Connection timed out -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[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
to

但是，如果我尝试通过 curl 获取该 URL，它会毫无问题地下载。与wget相同：

$ curl http://repo.vegicorp.net/artifactory/plugins-release/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom
<?xml version='1.0' encoding='UTF-8'?>

<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

所以，我可以通过 wget 和 curl 访问该 URL，但 Maven 本身似乎在获取该 URL 时遇到了问题。我在~/.m2/settings.xml 中添加了proxy 设置，但这似乎没有任何区别。我们最初将 Maven 存储库设置为从端口 80 重定向到端口 8080，但在 URL 中添加或删除端口号没有任何区别。 settings.xml 来自 Artifactory，它将为您生成它。同样的settings.xml 在我们的办公室工作。

删除 settings.xml 可以让一切正常工作，因为它可以从标准 Maven 存储库下载。

我的settings.xml：

<?xml version="1.0" encoding="UTF-8"?>
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd" xmlns="http://maven.apache.org/SETTINGS/1.1.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <servers>
    <server>
      <username>dweintraub</username>
      <password>AP8SoMtGnYpACsAwZo5oqUCfSYP</password>
      <id>central</id>
    </server>
    <server>
      <username>dweintraub</username>
      <password>AP8SoMtGnYpACsAwZo5oqUCfSYP</password>
      <id>snapshots</id>
    </server>
  </servers>
  <profiles>
    <profile>
      <repositories>
        <repository>
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
          <id>central</id>
          <name>libs-release</name>
          <url>http://repo.vegicorp.net/artifactory/libs-release</url>
        </repository>
        <repository>
          <snapshots />
          <id>snapshots</id>
          <name>libs-snapshot</name>
          <url>http://repo.vegicorp.net/artifactory/libs-snapshot</url>
        </repository>
      </repositories>
      <pluginRepositories>
        <pluginRepository>
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
          <id>central</id>
          <name>plugins-release</name>
          <url>http://repo.vegicorp.net/artifactory/plugins-release</url>
        </pluginRepository>
        <pluginRepository>
          <snapshots />
          <id>snapshots</id>
          <name>plugins-snapshot</name>
          <url>http://repo.vegicorp.net/artifactory/plugins-snapshot</url>
        </pluginRepository>
      </pluginRepositories>
      <id>artifactory</id>
    </profile>
  </profiles>
  <activeProfiles>
    <activeProfile>artifactory</activeProfile>
  </activeProfiles>
</settings>

还有一个文件~/.m2/repositories/org/apache/maven/plugins/maven-clean-plugins/2.4.1/maven-clean-plugin-2.4.1.pom.lastUpdated，内容如下：

#NOTE: This is an internal implementation file, its format can be changed without prior notice.
#Wed Feb 11 18:16:46 EST 2015
da39a3ee5e6b4b0d3255bfef95601890afd80709@proxy.gain.tcprod.local\:3128>2f606e371a64780e100321226a9f68a38c8b7906@default-http\://repo.vegicorp.net/artifactory/plugins-release/.lastUpdated=1423695463870
2f606e371a64780e100321226a9f68a38c8b7906@default-http\://repo.vegicorp.net/artifactory/plugins-release/.lastUpdated=1423696543392
http\://repo.vegicorp.net/artifactory/plugins-release/.error=Could not transfer artifact org.apache.maven.plugins\:maven-clean-plugin\:pom\:2.4.1 from/to central (http\://repo.vegicorp.net/artifactory/plugins-release)\: Connection to http\://repo.vegicorp.net refused
http\://repo.fusesource.com/nexus/content/repositories/releases/.lastUpdated=1423694766347
http\://repo.vegicorp.net/artifactory/plugins-snapshot/.error=Could not transfer artifact org.apache.maven.plugins\:maven-clean-plugin\:pom\:2.4.1 from/to snapshots (http\://repo.vegicorp.net/artifactory/plugins-snapshot)\: Connection to http\://repo.vegicorp.net refused
2f606e371a64780e100321226a9f68a38c8b7906@default-http\://repo.vegicorp.net/artifactory/plugins-snapshot/.lastUpdated=1423696606400
http\://repo.fusesource.com/nexus/content/repositories/releases/.error=
http\://repo.vegicorp.net/artifactory/plugins-release/.error=Could not transfer artifact org.apache.maven.plugins\:maven-clean-plugin\:pom\:2.4.1 from/to central (http\://repo.vegicorp.net/artifactory/plugins-release)\: Failed to transfer file\: http\://repo.vegicorp.net/artifactory/plugins-release/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom. Return code is\: 504 , ReasonPhrase\:Gateway Time-out.

这看起来像是代理设置问题。您能否将 mvn help:effective-settings 的输出添加到问题中？谢谢！

我要哭了……

$ mvn help:effective-settings
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] PROJ Generic Aggregate POM
[INFO] PROJ Generic Module
[INFO] PROJ Generic Features
Downloading: http://repo.fusesource.com/nexus/content/repositories/releases/org/apache/maven/plugins/maven-deploy-plugin/2.7/maven-deploy-plugin-2.7.pom
Downloading: http://repo.vegicorp.net/artifactory/plugins-release/org/apache/maven/plugins/maven-deploy-plugin/2.7/maven-deploy-plugin-2.7.pom

然后它会冻结并显示：

[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-deploy-plugin:2.7: Plugin org.apache.maven.plugins:maven-deploy-plugin:2.7 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-deploy-plugin:jar:2.7

对不起。由于我的设置，我无法运行mvn help:effective-settings...

【问题讨论】：

这看起来像是代理设置问题。您能否将mvn help:effective-settings 的输出添加到问题中？谢谢！
请参阅我的答案的附录。我无法让它工作，因为我无法与我的 Maven 服务器通信。
我做了两件事：首先，我添加了一个代理。仍然有下载问题，无法做有效的 pom 东西。但是，它在下载方面做得更好。然后，我查看了pom.xml，发现里面有REPOSITORY SETTINGS。这就是问题的核心所在。我从pom.xml 中删除了这些设置，它做得更好。
OMFG，这个 Maven 杀了我！当然你不能对网络设置进行故障排除，因为它需要从网络下载故障排除插件。 :facepalm: 我放弃了:(
我已经给 JFrog 打了个电话。

标签： maven jenkins artifactory

【解决方案1】：

但我不知道为什么，但是在我重新启动nexus进程之后，甚至在它真正开始之前，maven下载过程仍在继续......

我的环境：centos 7、maven 3.6.3、java-1.8.0-openjdk-1.8.0.302

【讨论】：

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