为什么要改为国内仓库？

因为国外太慢了。

步骤

1.修改配置文件
2.具体是mirrrors标签里的内容

原始内容

<!-- mirrors
   | This is a list of mirrors to be used in downloading artifacts from remote repositories.
   |
   | It works like this: a POM may declare a repository to use in resolving certain artifacts.
   | However, this repository may have problems with heavy traffic at times, so people have mirrored
   | it to several places.
   |
   | That repository definition will have a unique id, so we can create a mirror reference for that
   | repository, to be used as an alternate download site. The mirror site will be the preferred
   | server for that repository.
   |-->
  <mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
     -->
  </mirrors>

啥都没有。空白。就是使用默认的官方的maven仓库。

修改内容

在mirrors标签里面，添加以下内容。

<mirror>
    <id>aliyun-public</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun public</name>
    <url>https://maven.aliyun.com/repository/public</url>
</mirror>

<mirror>
    <id>aliyun-central</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun central</name>
    <url>https://maven.aliyun.com/repository/central</url>
</mirror>

<mirror>
    <id>aliyun-spring</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun spring</name>
    <url>https://maven.aliyun.com/repository/spring</url>
</mirror>

<mirror>
    <id>aliyun-spring-plugin</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun spring-plugin</name>
    <url>https://maven.aliyun.com/repository/spring-plugin</url>
</mirror>

<mirror>
    <id>aliyun-apache-snapshots</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun apache-snapshots</name>
    <url>https://maven.aliyun.com/repository/apache-snapshots</url>
</mirror>

<mirror>
    <id>aliyun-google</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun google</name>
    <url>https://maven.aliyun.com/repository/google</url>
</mirror>

<mirror>
    <id>aliyun-gradle-plugin</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun gradle-plugin</name>
    <url>https://maven.aliyun.com/repository/gradle-plugin</url>
</mirror>

<mirror>
    <id>aliyun-jcenter</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun jcenter</name>
    <url>https://maven.aliyun.com/repository/jcenter</url>
</mirror>

<mirror>
    <id>aliyun-releases</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun releases</name>
    <url>https://maven.aliyun.com/repository/releases</url>
</mirror>

<mirror>
    <id>aliyun-snapshots</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun snapshots</name>
    <url>https://maven.aliyun.com/repository/snapshots</url>
</mirror>  

<mirror>
    <id>aliyun-grails-core</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun grails-core</name>
    <url>https://maven.aliyun.com/repository/grails-core</url>
</mirror>

<mirror>
    <id>aliyun-mapr-public</id>
    <mirrorOf>*</mirrorOf>
    <name>aliyun mapr-public</name>
    <url>https://maven.aliyun.com/repository/mapr-public</url>
</mirror>

现在是国内仓库

最佳实践

一般情况下，使用国内。国内没有，切换为国外。

参考

segmentfault.com/a/119000001…