AS导入新的项目的时候会下载一些依赖包，这个过程往往比较漫长，不过我们可以通过配置国内的镜像来解决这个问题，这里记录一下配置阿里云的maven镜像过程。

阿里云maven镜像的地址是 maven.aliyun.com/nexus/content/groups/public/，我们需要在项目的根gradle文件中找到
我们需要在buildscript和allprojects节点中把原来的maven地址替换为阿里云的maven地址:

buildscript {
    repositories {
        jcenter()
         maven { url 'http://maven.aliyun.com/nexus/content/groups/public/'}
         maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
         maven { url 'http://maven.aliyun.com/nexus/content/repositories/google'}
         maven { url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin'}
    }
}
 
allprojects {
    repositories {
        jcenter()
//        maven { url "https://maven.google.com"}
         maven { url 'http://maven.aliyun.com/nexus/content/groups/public/'}
         maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
         maven { url 'http://maven.aliyun.com/nexus/content/repositories/google'}
         maven { url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin'}
    }
}