如何从 json 响应中多次获取相同的密钥？

Question

我需要从以下响应中获取所有 "customer" 键

[ { "customer": "Gary South", "type": "Dealer", "addresses"：[ { "vehicles": "CAR ", "type": "SUV" } ] }, { "customer": "William TUSK", "type": "Reseller", "addresses"：[ { "vehicles": "CAR ", "type": "SUV" } ] }, { "customer": "Lynn Baker", "type": "Dealer", "addresses"：[ { "vehicles": "VANS", "type": "BUSINESS" } ] } ]

我尝试了以下代码，但它只获取第一个 'name' 键值。

result = JSON.parse(response.body)
result.each do |item|
assert_equal @customerNames, item['customer']

Answer 1

您忘记了 end do 语句，您基本上需要遍历所有项目然后比较名称列表。

data = JSON.parse(response.body)
names = []
data.each do |item|
  names.push(item['name'])
end
puts names

输出：

Gary South
William TUSK
Lynn Baker

Answer 2

我会这样做：

data = JSON.parse(response.body)
names = data.map { |elem| elem['name'] } 
#=> ["Gary South", "William TUSK", "Lynn Baker"]

assert_equal @names, names

如何从 json 响应中多次获取相同的密钥？

How to get same key multiple times from json response?

ruby

json

httparty