Question

我有这个字符串，我需要转换为Hash：

str = '{:gender=>{:content=>"male"}, :names=>[{:first=>"Atair", :last=>"Goron"}], :addresses=>[{:country=>"GB", :state=>"ENG", :city=>"London"}], :emails=>[{:address=>"agoron@keolis.com", :address_md5=>"971b2fd0b83c900a5ca62c91dab80dd9"}, {:address=>"atair.godon.75@facebook.com", :address_md5=>"a0d958c1396300a344356d57b6836f9e"}], :jobs=>[{:title=>"Chief Executive Officer", :organization=>"Kolis UK and Eire"}, {:title=>"Deputy Managing Director", :organization=>"Kolis UK", :date_range=>{:start=>"2008-04-01", :end=>"2010-04-01"}}, {:title=>"Project Director", :organization=>"Keolis UK", :date_range=>{:start=>"2004-04-01", :end=>"2008-04-01"}}, {:title=>"Strategic Planning Director", :organization=>"Eurostar", :date_range=>{:start=>"2002-04-01", :end=>"2004-04-01"}}, {:title=>"Commercial Director, Business Markets", :organization=>"Eurostar", :date_range=>{:start=>"1999-11-01", :end=>"2002-04-01"}}, {:title=>"Brand Manager", :organization=>"Eurostar", :date_range=>{:start=>"1998-06-01", :end=>"1999-11-01"}}, {:title=>"Business Forecasting Manager", :organization=>"Eurostar", :date_range=>{:start=>"1997-08-01", :end=>"1998-06-01"}}, {:title=>"Principal Consultant", :organization=>"Steer Davies Gleave", :date_range=>{:start=>"1995-04-01", :end=>"1997-08-01"}}, {:title=>"Transport Consultant", :organization=>"Sir Alexander Gibb and Part", :date_range=>{:start=>"1990-01-01", :end=>"1995-12-31"}}], :educations=>[{:school=>"U. of London"}, {:school=>"University College London, U. of London", :date_range=>{:start=>"1987-01-01", :end=>"1990-12-31"}}], :usernames=>[{:content=>"alistair.gordon.75"}], :user_ids=>[{:content=>"5/238/746@linkedin"}, {:content=>"538818605@facebook"}, {:content=>"15504678@linkedin"}]}'

我有浮动数量的键，每个键值可以是字符串，数组，散列或哈希散列

有转换它的方法吗？

Answer 1

您可以尝试将request_id session_id topic_id 1 1 3000 2 1 5000 3 2 5000 4 2 3000 5 2 6000 6 3 5000 SELECT min(request_id), session_id, group_concat(topic_id order by request_id asc SEPARATOR ' ,') FROM requests WHERE (first(topic_id) = '5000' AND count(topic_id) > 1) group by session_id order by request_id asc result: request_id session_id topic_id 3 2 5000, 3000, 6000替换为:key=>，将格式转换为JSON：

"key":

像往常一样解析它：

str.gsub!(/:(\w+)=>/, '"\1":')
#=> "{\"gender\":{\"content\":\"male\"}, \"names\":[{\"first\":\"Atair\", ...

Answer 2

这很脏 eval ：eval用字符串计算Ruby表达式。

 > s = '{:gender=>{:content=>"male"}, :names=>[{:first=>"Atair", :last=>"Goron"}], :addresses=>[{:country=>"GB", :state=>"ENG", :city=>"London"}], :emails=>[{:address=>"agoron@keolis.com", :address_md5=>"971b2fd0b83c900a5ca62c91dab80dd9"}, {:address=>"atair.godon.75@facebook.com", :address_md5=>"a0d958c1396300a344356d57b6836f9e"}], :jobs=>[{:title=>"Chief Executive Officer", :organization=>"Kolis UK and Eire"}, {:title=>"Deputy Managing Director", :organization=>"Kolis UK", :date_range=>{:start=>"2008-04-01", :end=>"2010-04-01"}}, {:title=>"Project Director", :organization=>"Keolis UK", :date_range=>{:start=>"2004-04-01", :end=>"2008-04-01"}}, {:title=>"Strategic Planning Director", :organization=>"Eurostar", :date_range=>{:start=>"2002-04-01", :end=>"2004-04-01"}}, {:title=>"Commercial Director, Business Markets", :organization=>"Eurostar", :date_range=>{:start=>"1999-11-01", :end=>"2002-04-01"}}, {:title=>"Brand Manager", :organization=>"Eurostar", :date_range=>{:start=>"1998-06-01", :end=>"1999-11-01"}}, {:title=>"Business Forecasting Manager", :organization=>"Eurostar", :date_range=>{:start=>"1997-08-01", :end=>"1998-06-01"}}, {:title=>"Principal Consultant", :organization=>"Steer Davies Gleave", :date_range=>{:start=>"1995-04-01", :end=>"1997-08-01"}}, {:title=>"Transport Consultant", :organization=>"Sir Alexander Gibb and Part", :date_range=>{:start=>"1990-01-01", :end=>"1995-12-31"}}], :educations=>[{:school=>"U. of London"}, {:school=>"University College London, U. of London", :date_range=>{:start=>"1987-01-01", :end=>"1990-12-31"}}], :usernames=>[{:content=>"alistair.gordon.75"}], :user_ids=>[{:content=>"5/238/746@linkedin"}, {:content=>"538818605@facebook"}, {:content=>"15504678@linkedin"}]}'
 > eval(s)
 #=> {:gender=>{:content=>"male"}, :names=>[{:first=>"Atair", :last=>"Goron"}], :addresses=>[{:country=>"GB", :state=>"ENG", :city=>"London"}], :emails=>[{:address=>"agoron@keolis.com", :address_md5=>"971b2fd0b83c900a5ca62c91dab80dd9"}, {:address=>"atair.godon.75@facebook.com", :address_md5=>"a0d958c1396300a344356d57b6836f9e"}], :jobs=>[{:title=>"Chief Executive Officer", :organization=>"Kolis UK and Eire"}, {:title=>"Deputy Managing Director", :organization=>"Kolis UK", :date_range=>{:start=>"2008-04-01", :end=>"2010-04-01"}}, {:title=>"Project Director", :organization=>"Keolis UK", :date_range=>{:start=>"2004-04-01", :end=>"2008-04-01"}}, {:title=>"Strategic Planning Director", :organization=>"Eurostar", :date_range=>{:start=>"2002-04-01", :end=>"2004-04-01"}}, {:title=>"Commercial Director, Business Markets", :organization=>"Eurostar", :date_range=>{:start=>"1999-11-01", :end=>"2002-04-01"}}, {:title=>"Brand Manager", :organization=>"Eurostar", :date_range=>{:start=>"1998-06-01", :end=>"1999-11-01"}}, {:title=>"Business Forecasting Manager", :organization=>"Eurostar", :date_range=>{:start=>"1997-08-01", :end=>"1998-06-01"}}, {:title=>"Principal Consultant", :organization=>"Steer Davies Gleave", :date_range=>{:start=>"1995-04-01", :end=>"1997-08-01"}}, {:title=>"Transport Consultant", :organization=>"Sir Alexander Gibb and Part", :date_range=>{:start=>"1990-01-01", :end=>"1995-12-31"}}], :educations=>[{:school=>"U. of London"}, {:school=>"University College London, U. of London", :date_range=>{:start=>"1987-01-01", :end=>"1990-12-31"}}], :usernames=>[{:content=>"alistair.gordon.75"}], :user_ids=>[{:content=>"5/238/746@linkedin"}, {:content=>"538818605@facebook"}, {:content=>"15504678@linkedin"}]}

DEMO

注意：正如Drenmi所评论我也同意 some security implications 使用eval如果可能，请避免使用eval 。我建议尽可能在json中检索响应而不是字符串。它执行任何传递，你必须 110％肯定（因为，至少没有用户输入的任何地方）它将只包含正确形成的哈希或来自外太空的意外错误/可怕的生物可能会开始出现。

字符串哈希哈希/数组

2 个答案:

DEMO