通過遍歷JSON對象來生成HTML [ruby / rails]

Question

我正在使用coinbase API獲取每個帳戶的接收地址列表，然后將其解析為JSON。 但是，我想在網頁上顯示這些JSON元素。 我在執行操作時如何遍歷JSON數組並生成html（例如，通過附加
在每個元素之后將每個元素放在不同的行上）？

json對象在下面，我想打印出“地址”屬性列表：

{"addresses":[{"address":
{"address":"1JdB88wMbd9u63rHkReuCLxaGEweaUydGA","callback_url":null,"label":null,"created_at":"2014-08-14T18:17:17-07:00"}},
{"address":{"address":"1MoaCahENJvTAnHrUUW3VgHHQd3yLzVv9G","callback_url":null,"label":null,"created_at":"2014-08-14T01:04:08-07:00"}},
{"address":{"address":"155KDpZrQN4wmMHV7ypC9ZV1fLeLdSEFAc","callback_url":null,"label":null,"created_at":"2014-08-14T01:04:06-07:00"}},
{"address":{"address":"18c6WUcgo5gJVj6QgpnH5ZX5aBhHpWSLYv","callback_url":null,"label":null,"created_at":"2014-06-19T17:28:04-07:00"}}],
"total_count":4,"num_pages":1,"current_page":1}

Answer 1

您必須將json（ JSON Doc ）解析為哈希：

require 'json'
json_response = "{\"addresses\":[{\"address\":\n{\"address\":\"1JdB88wMbd9u63rHkReuCLxaGEweaUydGA\",\"callback_url\":null,\"label\":null,\"created_at\":\"2014-08-14T18:17:17-07:00\"}},\n{\"address\":{\"address\":\"1MoaCahENJvTAnHrUUW3VgHHQd3yLzVv9G\",\"callback_url\":null,\"label\":null,\"created_at\":\"2014-08-14T01:04:08-07:00\"}},\n{\"address\":{\"address\":\"155KDpZrQN4wmMHV7ypC9ZV1fLeLdSEFAc\",\"callback_url\":null,\"label\":null,\"created_at\":\"2014-08-14T01:04:06-07:00\"}},\n{\"address\":{\"address\":\"18c6WUcgo5gJVj6QgpnH5ZX5aBhHpWSLYv\",\"callback_url\":null,\"label\":null,\"created_at\":\"2014-06-19T17:28:04-07:00\"}}],\n\"total_count\":4,\"num_pages\":1,\"current_page\":1}"
hash_response = JSON.parse(json_response)
@addresses = hash_response['addresses']

然后在您的視圖中，只需遍歷以下地址：

<ul>
  <% @addresses.each do |address| %>
    <li>= address['address']['address'] </li>
  <% end %>
</ul>