在Web API异常等待客户端中通过HttpClient登录。邮政同步

Question

我已经创建了一个ASP。net项目WebAPI和MVC项目。当我尝试使用mvc项目通过HttpClient登录到web api时，它会抛出一个异常。

MVC代码，

在AccountController中登录：

  public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
    {
        if (!ModelState.IsValid)
        {
            return View(model);
        }
        try
        {
            var client = WebApiHttpClient.GetClient();
            string username = model.Email;
            string password = model.Password;
            HttpContent content = new StringContent("grant_type=password&username=" + username + "&password=" + password,System.Text.Encoding.UTF8,
            "application/x-www-form-urlencoded");
            var response = await client.PostAsync("/Token", content);
            if (response.IsSuccessStatusCode)
            {
                //string contentResponse = await response.Content.ReadAsStringAsync();
                //return Content(contentResponse);
                TokenResponse tokenResponse =
                await response.Content.ReadAsAsync<TokenResponse>();
                WebApiHttpClient.storeToken(tokenResponse);
                // return Content(tokenResponse.AccessToken);
                return RedirectToAction("Index", "Home");

            }
            else
            {
                return Content("Error in: " + response.StatusCode);
            }
        }
        catch
        {
            return Content("Error catch .");
        }
    }

WebapiHtppClient类：用于连接到API

  public class WebApiHttpClient
{
    public const string WebApiBaseAddress = "https://localhost:44379/";
    public static HttpClient GetClient()
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri(WebApiBaseAddress);
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new
        MediaTypeWithQualityHeaderValue("application/json"));
        var session = HttpContext.Current.Session;
        if (session["token"] != null)
        {
            TokenResponse tokenResponse = getToken();
            client.DefaultRequestHeaders.Authorization =
            new AuthenticationHeaderValue("bearer", tokenResponse.AccessToken);
        }

        return client;
    }

    public static void storeToken(TokenResponse token)
    {
        var session = HttpContext.Current.Session;
        session["token"] = token;
    }
    public static TokenResponse getToken()
    {
        var session = HttpContext.Current.Session;
        return (TokenResponse)session["token"];
    }

}

public class TokenResponse
{
    [JsonProperty("access_token")]
    public string AccessToken { get; set; }
    [JsonProperty("token_type")]
    public string TokenType { get; set; }
    [JsonProperty("expires_in")]
    public int ExpiresIn { get; set; }
    [JsonProperty("userName")]
    public string Username { get; set; }
    [JsonProperty(".issued")]
    public string IssuedAt { get; set; }
    [JsonProperty(".expires")]
    public string ExpiresAt { get; set; }
} 

我在这里已经试过很多次了，但是没有找到结果。一个在等待客户。PostAsync（“/Token”，content），只需放置“Token”

有了chrome的邮递员，我就可以登录并在Web Api中看到这些东西了

邮递员

错误捕获：发送请求时出错。mscorlibat系统。运行时。编译器服务。任务等待者。系统中的ThrowForNonSuccess（任务任务）。运行时。编译器服务。任务等待者。系统上的HandleNonSuccessAndDebuggerNotification（任务）。运行时。编译器服务。任务等待者'1。WebApplication1上的GetResult（）。控制器。会计控制员。迪乌11。C:\wamp\www\arqsi\it1\iteracao3\iteracao3\WebApplication1\Controllers\AccountController中的MoveNext（）。政务司司长：第88行

Answer 1

我建议你把一个调试器
（在会计控制器=