报错代码如下

[INFO] Scanning for projects...
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-archetype-plugin/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml from/to central (https://repo.maven.apache.org/maven2): 杩欐槸鍦ㄤ富鏈哄悕瑙ｆ瀽鏃堕�氬父鍑虹幇鐨勬殏鏃堕敊璇紝瀹冩剰鍛崇潃鏈湴鏈嶅姟鍣ㄦ病鏈変粠鏉冨▉鏈嶅姟鍣ㄤ笂鏀跺埌鍝嶅簲銆� (repo.maven.apache.org)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.990 s
[INFO] Finished at: 2019-01-15T11:37:15+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-archetype-plugin:RELEASE or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-archetype-plugin:jar:RELEASE: Failed to resolve version for org.apache.maven.plugins:maven-archetype-plugin:jar:RELEASE: Could not find metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml in local (D:\devsoft\apache-maven-3.5.4-bin\apache-maven-3.5.4\repository) -> [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
[ERROR] Maven execution terminated abnormally (exit code 1)

找了一上午的问题，后来才发现maven也是需要配置代理的，很难受了。

操作步骤：

1、打开{M2_HOME}/conf/settings.xml文件，注意：{M2_HOME}为maven所在目录。

2、找到proxies节点

image.png

把上面的注释去掉，然后修改成代理的地址即可。

<settings> 
   ...
   <proxies>
      <proxy>
         <id>my-proxy</id>
         <active>true</active>
         <protocol>http</protocol>
         <host>192.168.10.117</host>
         <port>8080</port>
         <!--
         <username>your-username</username>
         <password>your-password</password>
         <nonProxyHosts>repository.mycom.com|*.google.com</nonProxyHosts>
         -->
      </proxy>
    </proxies>
   ...
</settings>

这段配置十分简单，proxies下可以有多个proxy元素，如果你声明了多个proxy元素，则默认情况下第一个被激活的proxy会生效。这里声明 了一个id为my-proxy的代理，active的值为true表示激活该代理，protocol表示使用的代理协议，这里是http。当然，最重要的 是指定正确的主机名（host元素）和端口（port元素）。上述XML配置中我注释掉了username、password、nonProxyHost 几个元素，当你的代理服务需要认证时，就需要配置username和password。nonProxyHost元素用来指定哪些主机名不需要代理，可以 使用 | 符号来分隔多个主机名。此外，该配置也支持通配符，如*.google.com表示所有以google.com结尾的域名访问都不要通过代理。