如何在C＃中讀取響應頭？

Question

我已經聲明了一個繼承自WebClient的類ClientClass。 我要使用此類來定義HttpWebRequest對象，因為我想將SSL證書與客戶端身份驗證請求一起傳遞。

public class ClientClass : WebClient
{
    protected override WebRequest GetWebRequest(Uri address)
    {
        HttpWebRequest request = (HttpWebRequest)base.GetWebRequest(address);
        request = (HttpWebRequest)base.GetWebRequest(address);
        request.ClientCertificates.Add(GetCertificate());
        return request;
    }

    private static X509Certificate2 GetCertificate()
    {
            string certificateThumbprint = AADHelper.DecryptConfigurationSetting(ConfigHelper.CertificateThumbprint);
            string thumbprint = certificateThumbprint;
            X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
            store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
            List<X509Certificate2> list = store.Certificates.Cast<X509Certificate2>().ToList();
            X509Certificate2 clientCertificate = list.Find(c => c.Thumbprint != null && c.Thumbprint.Equals(thumbprint, StringComparison.InvariantCultureIgnoreCase));
            return clientCertificate;
    }



}

使用WebClient類的UploadData方法，我能夠發送POST請求並獲取響應字符串。 但是我也想同時接收響應頭和字符串。 我考慮過使用HttpWebResponse進行響應，但是我不確定如何發送請求。

我發送POST請求的代碼如下：

using (var client = new ClientClass())
                {
                    client.Headers.Add("content-type", "application/json");
                      client.Headers.Add("x-ms-tracking-id", TrackingId.ToString());
                    string rawResponse;
                    rawResponse = Encoding.ASCII.GetString(client.UploadData(Url, "POST", Encoding.Default.GetBytes(jsonString)));      dataAccessLayer.InsertKeyReplacementKFSAudit(keyReplacementID, TrackingId, jsonString, rawResponse, request.User, startTime, endTime);
                    }

您能幫助我如何讀取響應標頭嗎？ 提前致謝。

Answer 1

您可以使用client.ResponseHeaders檢索響應頭。

        try
        {
            rawResponse = Encoding.ASCII.GetString(client.UploadData(Url, "POST", Encoding.Default.GetBytes(jsonString)));
            var responseHeaders = client.ResponseHeaders;
        }
        catch (WebException wex) // To handle error
        {
            // wex.Response.Headers // You can retrieve the headers
            //((HttpWebResponse)wex.Response).StatusCode //You can handle StatusCode like this;
        }