c# - 错误 (407) "Proxy Authentication Required."

Question

我有这样的要求...我想从 winforms 访问一个 url(登录页面是 web)。我必须将凭据传递给该 url，响应应该是经过身份验证的网页(标记)的内容。

我编写了一个函数，它将请求 url 并返回响应。但我收到错误代码 (407)

"Proxy Authentication Required."

这是我的代码。

private static void GetPageContent(){
    string url = "https://LoginPage.aspx/";
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Method = "GET";
    // If required by the server, set the credentials.
    //request.Proxy.Credentials = CredentialCache.DefaultCredentials;
    request.Credentials = new NetworkCredential("user1", "testuser#");
    // Get the response.
    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    // Display the status.
    Console.WriteLine(response.StatusDescription);
    // Get the stream containing content returned by the server.
    Stream dataStream = response.GetResponseStream();
    // Open the stream using a StreamReader for easy access.
    StreamReader reader = new StreamReader(dataStream);
    // Read the content.
    string responseFromServer = reader.ReadToEnd();
    // Display the content.
    Console.WriteLine(responseFromServer);
    // Cleanup the streams and the response.
    reader.Close();
    dataStream.Close();
    response.Close();
}

Answer 1

WebProxy proxy = new WebProxy(proxyAddress);
proxy.Credentials = new NetworkCredential("username", "password", "domain");
proxy.UseDefaultCredentials = true;
WebRequest.DefaultWebProxy = proxy;

HttpWebRequest request = new HttpWebRequest();
request.Proxy = proxy;

或者您可以使用 WebClient。

WebClient client = new WebClient();
client.Proxy = proxy;
string downloadString = client.DownloadString("http://www.google.com");