将JSON转换为字符串或ruby中的散列。-ConvertJSONtostringorhashinruby

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Your incoming string in JSON would look like:

JSON格式的传入字符串如下:

{"id":"ABC","account_id":"123","first_name":"PEUS"}

After parsing with JSON it's the hash:

使用JSON解析后，它是散列:

{"id"=>"ABC", "account_id"=>"123", "first_name"=> "PEUS" }

So, I'd use:

所以,我使用:

hash = {"id"=>"ABC", "account_id"=>"123", "first_name"=> "PEUS" }
hash['id'] # => "ABC"

Here's a more compact version:

这里有一个更紧凑的版本:

require 'json'

json = '{"id":"ABC","account_id":"123","first_name":"PEUS"}'
hash = JSON[json]
hash['id'] # => "ABC"

Note I'm using JSON[json]. The JSON [] class method is smart enough to sense what the parameter being passed in is. If it's a string it'll parse the string. If it's an Array or Hash it'll serialize it. I find that handy because it allows me to write JSON[...] instead of having to remember whether I'm parsing or using to_json or something. Using it is an example of the first virtue of programmers.

请注意我用JSON(JSON)。JSON[]类方法足够智能，可以感知传入的参数是什么。如果它是一个字符串，它将解析这个字符串。如果是数组或散列，它会序列化它。我发现这很方便，因为它允许我写JSON[……]不需要记住我是在解析还是在使用to_json之类的东西。使用它是程序员的第一个优点。