maven - Apache Maven 错误 : Could not transfer artifact org. apache.maven.plugins :maven-clean-plugin:pom: 2. 5 到中央

Question

我是新手。我正在研究 apache maven。我在代理服务器后面工作。每次，我都尝试构建 Maven 项目。它给了我这个错误。我还更改了 settings.xml 文件中的代理设置。但它不起作用。它一直给我同样的问题。构建失败。我在网上搜索了答案。但我找不到它。我正在尝试将 CAS 集成到我的 Web 应用程序和站点中。如果有人对此也有建议，请帮助我。编辑:-pom.xml 文件:-

  <proxies>
  <!-- proxy
     | Specification for one proxy, to be used in connecting to the network.
     |-->
    <proxy>
      <id>myproxy</id>
      <active>true</active>
      <protocol>http</protocol>
     <username>username</username>
      <password>pass</password>
      <host>companyhost</host>
      <port>8080</port>
     <!-- <nonProxyHosts>local.net|some.host.com</nonProxyHosts>-->
    </proxy>

  </proxies>

错误:-

C:\workspace\local-cas>mvn clean package
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building local-cas 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/mave
-clean-plugin/2.5/maven-clean-plugin-2.5.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 04:03 min
[INFO] Finished at: 2014-11-20T17:03:32+05:30
[INFO] Final Memory: 8M/245M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its de
endencies could not be resolved: Failed to read artifact descriptor for org.apa
he.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer artifact org.ap
che.maven.plugins:maven-clean-plugin:pom:2.5 from/to central (https://repo.mave
.apache.org/maven2): Connect to host.com:8080 failed: Conection timed out: connect -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e swi
ch.
[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 re
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolut
onException
C:\workspace\local-cas>

---

我认为我遇到了问题，因为公司代理服务器限制了一切。

Answer 1

我认为您需要在 settings.xml 中正确设置 maven 代理。

看看(例如)您的网络浏览器，看看它是如何设置的。

来自 Configuring a proxy 上的文档:

<proxy>
  <active>true</active>
  <protocol>http</protocol>
  <host>proxy.somewhere.com</host>
  <port>8080</port>
  <username>proxyuser</username>
  <password>somepassword</password>
  <nonProxyHosts>www.google.com|*.somewhere.com</nonProxyHosts>
</proxy>

最好向您的同事询问工作代理。没有公司会阻止这件事