Question

我正在使用Net :: HTTP向Ruby发出HTTP请求，我无法弄清楚如何获取所有响应头。

我尝试了response.header和response.headers，但没有任何效果。

Answer 1

响应对象实际上包含标题。

有关详细信息，请参阅“Net::HTTPResponse”。

你可以这样做：

response['Cache-Control']

您还可以在响应对象上调用each_header或each来迭代标题。

如果您确实需要响应对象之外的标头，请致电response.to_hash

Answer 2

请注意，RestClient库具有response.headers的预期行为。

response.headers
{
                          :server => "nginx/1.4.7",
                            :date => "Sat, 08 Nov 2014 19:44:58 GMT",
                    :content_type => "application/json",
                  :content_length => "303",
                      :connection => "keep-alive",
             :content_disposition => "inline",
     :access_control_allow_origin => "*",
          :access_control_max_age => "600",
    :access_control_allow_methods => "GET, POST, PUT, DELETE, OPTIONS",
    :access_control_allow_headers => "Content-Type, x-requested-with"
}

Answer 3

回复DragonFly/x86_64 (Amnesiac) (ttyv0)\u001b[38;74H\u001b[28X\u001b[39dlogin:\u001b[74G\u001b(B\u001b[m\u001b[39;49m\u001b[37m\u001b[40m\u001b[15;36r\u001b[36;1H\u001b[7S\u001b[1;54r\u001b[31;74H\u001b[37m\u001b[40mFri Feb 16 05:29:19 UTC 2018\u001b[32;74HWelcome to DragonFly!\u001b[34;74HTo start the installer, login as 'installer'. To just get a shell prompt,\u001b[35;74Hlogin as 'root'.\u001b[39;81H\u001b[30m\u001b[47m \u001b[39;74H\u001b(B\u001b[m\u001b[39;49m\u001b[37m\u001b[40m" (spawn_id exp6) match glob pattern "login: "? no包含来自Net::HTTPResponse的标题，您可以通过@Intrepidd从@ {1}}方式获取该标题，该标题将返回如下的枚举数：

Net::HTTPHeader

您可以使用each_header方法获取实际哈希，如下所示：

response.each_header

#<Enumerator: #<Net::HTTPOK 200 OK readbody=true>:each_header>
[
  ["x-frame-options", "SAMEORIGIN"],
  ["x-xss-protection", "1; mode=block"],
  ["x-content-type-options", "nosniff"],
  ["content-type", "application/json; charset=utf-8"],
  ["etag", "W/\"51a4b917285f7e77dcc1a68693fcee95\""],
  ["cache-control", "max-age=0, private, must-revalidate"],
  ["x-request-id", "59943e47-5828-457d-a6da-dbac37a20729"],
  ["x-runtime", "0.162359"],
  ["connection", "close"],
  ["transfer-encoding", "chunked"]
]

Answer 4

如果您需要用户友好输出，则可以使用<?xml version="1.0" encoding="utf-8" ?> <NavigationPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="TransparentNavBarXForms.CustomNavigationPage" BarTextColor="White"> <NavigationPage.BarBackgroundColor> <OnPlatform x:TypeArguments="Color"> <On Platform="Android, iOS" Value="Transparent" /> </OnPlatform> </NavigationPage.BarBackgroundColor> </NavigationPage> public partial class CustomNavigationPage : NavigationPage { public CustomNavigationPage() : base() { InitializeComponent(); } public CustomNavigationPage(Page root) : base(root) { InitializeComponent(); } public bool IgnoreLayoutChange { get; set; } = false; protected override void OnSizeAllocated(double width, double height) { if (!IgnoreLayoutChange) base.OnSizeAllocated(width, height); } } public class CustomNavigationPageRenderer : NavigationPageRenderer { public CustomNavigationPageRenderer(Context context) : base(context) { } IPageController PageController => Element as IPageController; CustomNavigationPage CustomNavigationPage => Element as CustomNavigationPage; protected override void OnLayout(bool changed, int l, int t, int r, int b) { CustomNavigationPage.IgnoreLayoutChange = true; base.OnLayout(changed, l, t, r, b); CustomNavigationPage.IgnoreLayoutChange = false; int containerHeight = b - t; PageController.ContainerArea = new Rectangle(0, 0, Context.FromPixels(r - l), Context.FromPixels(containerHeight)); for (var i = 0; i < ChildCount; i++) { AView child = GetChildAt(i); if (child is Android.Support.V7.Widget.Toolbar) { continue; } child.Layout(0, 0, r, b); } } } public partial class App : Application { public App() { InitializeComponent(); MainPage = new CustomNavigationPage(new MainPage()); } }：

each_capitalized

这将打印：

response.each_capitalized { |key, value| puts " - #{key}: #{value}" }

Answer 5

将其存储在哈希中=>

response_headers = {}
your_object.response.each { |key, value|  response_headers.merge!(key.to_s => value.to_s) }

puts response_headers

Answer 6

使用HTTParty作为替代方案也可以轻松实现：

HTTParty.get(uri).headers

从Ruby HTTP请求获取响应头

6 个答案: