使用HttpClient时出现未经授权的错误

Question

using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;

namespace ConsoleProgram
{
    public class Class1
    {
        private const string URL = "https://sun.domain.com/v1/service/token";
        static void Main(string[] args)
        {
            var handler = new HttpClientHandler();
            handler.Credentials = new System.Net.NetworkCredential("admin@client", "admin");
            HttpClient client = new HttpClient(handler);
            //client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes(String.Format("{0}:{1}", "admin", "admin"))));
            //  client.BaseAddress = new Uri(URL);
            // Add an Accept header for JSON format.
            client.DefaultRequestHeaders.Accept.Add(
            new MediaTypeWithQualityHeaderValue("application/json"));
            // List data response.
            HttpResponseMessage response = client.GetAsync(URL).Result;  // Blocking call!
            String res = response.ToString();
            Console.WriteLine(res);
        }
    }
}

即使我传递正确的凭据，也会出现未经授权的错误。 有任何想法吗？

我尝试了几乎所有发布在StackOverflow上的答案。

Answer 1

对于基本身份验证，您需要在名为“ Basic”的授权标头中发送凭据，并以base64编码的“ username：password”作为值。 这应该完成工作：

var headerVal = Convert.ToBase64String(Encoding.UTF8.GetBytes("admin@client:admin"));
var header = new AuthenticationHeaderValue("Basic", headerVal);
client.DefaultRequestHeaders.Authorization = header;