httpClient 请求的DefaultRequestHeaders 格式错误解答

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原创最新推荐文章于 2026-10-15 15:34:34 发布 1k 阅读 AI 写同款· GEO 优化 ›

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 clientHandler.ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => { return true; };
 clientHandler.SslProtocols = System.Security.Authentication.SslProtocols.Tls12 | System.Security.Authentication.SslProtocols.Tls13 | System.Security.Authentication.SslProtocols.Tls11;
 using (var httpClient = new HttpClient(clientHandler))
 {

     httpClient.DefaultRequestHeaders.Add("Accept", "application/json");

     httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

     string authInfo = Convert.ToBase64String(Encoding.UTF8.GetBytes(token));
    //因为 token 是json格式，所以用其他的都是错误的
     httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Authorization", token);

    //httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer",token); 错了
     //httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("",token);  //错了
    // httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", token);  
    //httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(token);
     var content = new StringContent(RequestPara, System.Text.Encoding.UTF8, "application/json");
     using (var response = await httpClient.PostAsync(Url, content))
     {
         if (response.StatusCode == HttpStatusCode.RequestTimeout)
         {
             return HttpStatusCode.RequestTimeout.ToString();
         }
         return await response.Content.ReadAsStringAsync();
     }
 }