相关疑难解决方法(0)

这是我最近的代码:

HttpClient authClient = new HttpClient();
authClient.BaseAddress = new Uri("http://localhost:4999/test_db/_session");
authClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

var user = new LoginUserSecretModel
{
    name = userKey,
    password = loginData.Password,
};
HttpResponseMessage authenticationResponse = authClient.PostAsJsonAsync("", user).Result;

我正在使用新的HttpClient来处理我项目的网上冲浪需求; 但是,尽管设置正确,但HttpClient不会将cookie保存到Cookie容器中,并且它始终为EMPTY.

码

private CookieContainer _cookieContainer = new CookieContainer();
private HttpClient HttpClient { get; set; }
private HttpClientHandler HttpClientHandler { get; set; }

public Initialize()
{
    HttpClientHandler = new HttpClientHandler
                            {
                                AllowAutoRedirect = true,
                                UseCookies = true,
                                CookieContainer = _cookieContainer
                            };
    HttpClient = new HttpClient(HttpClientHandler);
}

public CookieContainer Cookies
{
    get { return _cookieContainer; }
    set { _cookieContainer = value; }
}

public void TEST()
{
    //This is always empty, although I am sure that the site is saving login …

我正在尝试使用 C# 和 HttpClient 类在 Spotify 登录页面上获取 cookie。但是，当我知道正在设置 cookie 时，CookieContainer 始终为空。我没有发送任何标头，但它仍然应该给我 cookie(s) 因为当我发送一个没有任何标头的 GET 请求时，我得到了 csrf 令牌。这是我的代码：

using System;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Collections;
using System.Web;

class Program
{
    static void Main()
    {
        Task t = new Task(MakeRequest);
        t.Start();
        Console.WriteLine("Getting cookies!");
        Console.ReadLine();
    }

    static async void MakeRequest()
    {
        CookieContainer cookies = new CookieContainer();
        HttpClientHandler handler = new HttpClientHandler();

        handler.CookieContainer = cookies;
        Uri uri = new Uri("https://accounts.spotify.com/en/login/?_locale=en-US&continue=https:%2F%2Fwww.spotify.com%2Fus%2Faccount%2Foverview%2F");
        HttpClient client = new HttpClient(handler); …

根据MSDN CookieContainer.SetCookies应该

将一个或多个cookie的Cookie实例从HTTP cookie标头添加到CookieContainer以获取特定URI

这意味着它应该适用于多个cookie,但是当我这样做时

_cookieContainer.SetCookies(new Uri("http://localhost"), "a=a;b=b");

然后尝试使用.检索cookie

_cookieContainer.GetCookies(new Uri("http://localhost"));

我只得到一个cookie条目 a=a

我认为可能是cookie头格式错误,所以我手动添加两个cookie使用.Add方法,后来尝试通过调用获取头.GetCookieHeader,我得到完全相同的字符串"a=a;b=b".

我错过了什么,或者我发现了一个.NET错误？我目前正在使用

VS2015 - v14.0.23107.0,
.NET - 4.6 4.6.00081