此代码导致错误的请求或“任务已取消”因为它包含两种类型的身份验证。

1. 处理程序。UseDefaultCredentials=true

//Create the HttpClientHandler
HttpClientHandler handler = new HttpClientHandler();

//Add the AD Credentials
handler.UseDefaultCredentials = true;
if (Client == null)
{
    Client = new HttpClient(handler);

    Client.Timeout = TimeSpan.FromMinutes(0.5);

}

Client.DefaultRequestHeaders.Clear();

//Add Basic header credentials for the remote server
var authToken = Encoding.ASCII.GetBytes($"{userName}:{password}");
Client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(authToken));


if (ReqHeaders.Count != 0)
{
    foreach (KeyValuePair<string, string> pair in ReqHeaders)
    {
        Client.DefaultRequestHeaders.Add(pair.Key, pair.Value);
    }
}

我需要首先对ESB进行本地身份验证，然后对远程服务器进行身份验证。