淘宝的ruby镜像已无人维护,使用ruby-china的RubyGems镜像

淘宝的镜像已经无人维护了，参考

https://ruby-china.org/topics/29250

https://gems.ruby-china.org/

使用新的镜像

$ gem sources --add https://gems.ruby-china.org/ --remove https://rubygems.org/$ gem sources -l
*** CURRENT SOURCES ***

https://gems.ruby-china.org# 请确保只有 gems.ruby-china.org$ gem install rails

涉及到代理服务器的话，这么搞：

>>SET http_proxy=>>SET https_proxy=
>>gem install something
or
>>gem list -p http://user:pwd@ip_or_host:8080 -r