点击欢迎界面右下角的Configure –> settings –> Appearance & Behavior –> System Settings –> HTTP Proxy，
选中Auto-detect proxy settings，勾选下方Automatic proxy configuration URL，填入国内的某个镜像站。
如：输入 http://maven.aliyun.com/nexus/content/groups/public/
原文：https://www.cnblogs.com/luckyls/p/14491257.html