如何用ruby中的querystring创建散列?(复制)

This question already has an answer here:

这个问题已经有了答案:

• Parse a string as if it were a querystring in Ruby on Rails 5 answers
• 将字符串解析为Ruby on Rails 5中的查询字符串

I want to create a hash from a querystring. This is my method:

我想从一个querystring创建一个散列。这是我的方法:

def qs2h(querystring)
  hashes = querystring.split('&').inject({}) do |result,query| 
    k,v = query.split('=')
    if !v.nil?
      result.merge(k.to_sym => v)
    elsif !result.key?(k)
      result.merge(k.to_sym => true)
    else
      result
    end
  end
  hashes
end

qs2h('a=1&b=2&c=3&d') #=> {:a => "1", :b => "2", :c => "3", :d => true}

Is there any simpler method to do this in ruby?

在ruby中有什么更简单的方法来实现这一点吗?

1 个解决方案

#1

Use CGI::parse:

使用CGI::解析:

CGI.parse('a=1&b=2&c=3&d')
# => {"a"=>["1"], "b"=>["2"], "c"=>["3"], "d"=>[]}
Hash[CGI.parse('a=1&b=2&c=3&d').map {|key,values| [key.to_sym, values[0]||true]}]
# => {:a=>"1", :b=>"2", :c=>"3", :d=>true}