請求https的代理錯誤

Question

我正在使用這段代碼來訪問遠程Uri：

Uri uri = "http://www.myurl.com";
WebRequest wreq = WebRequest.Create(uri);
((HttpWebRequest)wreq).UserAgent = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.75 Safari/537.1";
wreq.Proxy = WebRequest.DefaultWebProxy;

這對於所有“ http” Uri都非常有效。 但是，當切換到以下類型的Uri（https）時，我收到請求身份驗證的代理錯誤407（“異常”日志表明憑據無效）。 您是否知道我該如何處理？

Uri uri = "https://www.myurl.com";
WebRequest wreq = WebRequest.Create(uri);
((HttpWebRequest)wreq).UserAgent = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.75 Safari/537.1";
wreq.Proxy = WebRequest.DefaultWebProxy;

最好的祝福，

Al_th

Answer 1

嘗試這個

private string GetPageSource(string url)
{
    string htmlSource = string.Empty;
    try
    {
        System.Net.WebProxy myProxy = new System.Net.WebProxy("Proxy IP", 8080);
        using (System.Net.WebClient client = new System.Net.WebClient())
        {
            client.Proxy = myProxy;
            client.Proxy.Credentials = new System.Net.NetworkCredential("username", "password");
            htmlSource = client.DownloadString(url);
        }
    }
    catch (WebException ex)
    {
        // log any exceptions
    }
    return htmlSource;
}