Maven deploy报错：Failed to deploy artifacts: Could not transfer artifact from/to snapshots 401 Unauthorized

Maven deploy报错：

Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:deploy (default-deploy) on project : Failed to deploy artifacts: Could not transfer artifact   from/to snapshots  401 Unauthorized

错误原因：

401 Unauthorized，一般是身份验证凭证没通过。

解决方法：

查看maven的conf目录下的 settings.xml 配置，检查账号密码是否正确。

  <servers>
    <server>
      <username>账号</username>
      <password>密码</password>
      <id>central</id>
    </server>
    <server>
      <username>账号</username>
      <password>密码</password>
      <id>snapshots</id>
    </server>
  </servers>