對JSON值進行排序？

我有一個JSON列表，如：對JSON值進行排序？

response = '{"ContainsErrors":false,"Result":[{"Name":"Aegypten","IsoCode":"EG"},{"Name":"Aequatorialguinea","IsoCode":"GQ"},{"Name":"Aethiopien","IsoCode":"ET"},{"Name":"Afghanistan","IsoCode":"AF"},{"Name":"Albanien","IsoCode":"AL"},{"Name":"Algerien","IsoCode":"DZ"},{"Name":"Angola","IsoCode":"AO"},{"Name":"Antigua und Barbuda","IsoCode":"AG"},{"Name":"Argentinien","IsoCode":"AR"},{"Name":"Australien","IsoCode":"AU"},{"Name":"Bahamas","IsoCode":"BS"}]}'

我怎樣才能得到它的名字後排序？

response.sort_by { |k, v| v["Name"] }

不起作用。

什麼工作是：

response = RestClient.get("#{Settings.itineris.url}/de/RepInfo/#{action}") 
#response = '{"ContainsErrors":false,"Result":[{"Name":"Aegypten","IsoCode":"EG"},{"Name":"Aequatorialguinea","IsoCode":"GQ"},{"Name":"Aethiopien","IsoCode":"ET"},{"Name":"Afghanistan","IsoCode":"AF"},{"Name":"Albanien","IsoCode":"AL"},{"Name":"Algerien","IsoCode":"DZ"},{"Name":"Angola","IsoCode":"AO"},{"Name":"Antigua und Barbuda","IsoCode":"AG"},{"Name":"Argentinien","IsoCode":"AR"},{"Name":"Australien","IsoCode":"AU"},{"Name":"Bahamas","IsoCode":"BS"}]}' 

JSON.load(response)['Result']

結果是未排序的列表。我怎樣才能得到一個國家名稱的有序列表？

來源

2014-01-23 StandardNerd

你有一個字符串作爲迴應。它在操作之前，你應該把它轉換爲Hash：

response = '{"ContainsErrors":false,"Result":[{"Name":"Aegypten","IsoCode":"EG"}]}' 
require 'json' 
hash = JSON.parse(response)

，然後做你想做的：

hash['Result'].sort_by { |v| v["Name"] } 
#       ⇑ v here since it’s an array of hashes

要獲得國名的有序列表：

hash['Result'].map { |v| v["Name"] }.sort

來源

2014-01-23 12:42:55 mudasobwa

嗯，它不工作，所以我試着用JSON.load（response）['Result']。sort_by {| k，v | v [「Name」]}但它也失敗了。 – StandardNerd

您是否注意到我在我的示例中連接了您的輸入以適應頁面寬度？ – mudasobwa

@Michael我使用Ruby 1.9.3，錯誤是「NoMethodError」和'block in rest_request'，'each'，'sort_by'... – StandardNerd

對JSON值進行排序？

回答

相關問題