ruby-on-rails - whois 在 irb 中不起作用

Question

我使用 $ gem install whois 安装 whois 并遵循 Ruby Whois
但是当我在 irb 中测试它时，它给出了错误:

1.9.3p194 :001 > c = Whois::Client.new
NameError: uninitialized constant Whois
from (irb):1
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands/console.rb:47:in `start'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands/console.rb:8:in `start'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:41:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>

编辑

当我 require 'whois' 时出现另一个错误:

1.9.3p194 :003 > require 'whois'
LoadError: cannot load such file -- whois
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `block in require'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
from (irb):3
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands/console.rb:47:in `start'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands/console.rb:8:in `start'
from /home/darshana/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:41:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

谢谢。

Answer 1

尝试安装和加载对我有用的 whois 库。

> gem install whois
> irb
* require 'whois'  
* c = Whois::Client.new
>>  #<Whois::Client:0x8f0fa34 @timeout=10, @settings={}>