阿輝的零碎筆記

在 import maven專案的時候發生以下錯誤,

[INFO] Scanning for projects...
Downloading: https://repo.maven.apache.org/maven2/org/sonarsource/sonar-packaging-maven-plugin/sonar-packaging-maven-plugin/maven-metadata.xml
[WARNING] Could not transfer metadata org.sonarsource.sonar-packaging-maven-plugin:sonar-packaging-maven-plugin/maven-metadata.xml from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.52.215] failed: Connection refused (Connection refused)
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[WARNING] 'build.plugins.plugin.version' for org.sonarsource.sonar-packaging-maven-plugin:sonar-packaging-maven-plugin is missing. @ line 48, column 21
[ERROR] Unresolveable build extension: Error resolving version for plugin 'org.sonarsource.sonar-packaging-maven-plugin:sonar-packaging-maven-plugin' from the repositories [local (/home/grayyin/.m2/repository), central (https://repo.maven.apache.org/maven2)]: Plugin not found in any plugin repository @
[ERROR] Unknown packaging: sonar-plugin @ line 9, column 16
...
...

以前可以跑的專案怎麼現在這台電腦設定就會死掉哩...
才知道公司環境要走proxy, 不然就無法更新一些套件.

可以到user資料夾下路徑設定,
Linux users:
/home/{username}/.m2/

Windows users:
C:\Users\{username}\.m2\
(手動把檔案新增起來吧...)

<?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">
 <pluginGroups/>
 <proxies>
  <!-- Proxy for HTTP -->
  <proxy>
   <id>optional</id>
   <active>true</active>
   <protocol>http</protocol>
   <username>proxyuser</username>
   <password>proxypass</password>
   <host>proxy.host.net</host>
   <port>80</port>
   <nonProxyHosts>local.net</nonProxyHosts>
  </proxy>

  <!-- Proxy for HTTPS -->
  <proxy>
   <id>optional</id>
   <active>true</active>
   <protocol>https</protocol>
   <username>proxyuser</username>
   <password>proxypass</password>
   <host>proxy.host.net</host>
   <port>80</port>
   <nonProxyHosts>local.net</nonProxyHosts>
  </proxy>
 </proxies>

 <servers/>
 <mirrors/>
 <profiles/>
</settings>

然後到eclipse裡.
Windows --> Preference --> Maven --> User Setting 
新增 C:\Users\gray\.m2\settings.xml 
按下 [Update Settings] => [Apply and close].

然後你的Maven就可以走 proxy了.