C# WebClient 下载字符串 https [英] C# WebClient Download String https

问题描述

在网页浏览器中，我通常可以加载以下网址:https://security.ultimatxxxx.com:443/Serverstatus.ashx

In the webbrowser I can normally load the following url: https://security.ultimatxxxx.com:443/Serverstatus.ashx

当我这样做时:

Webclient.DownloadStringAsync("https://security.ultimatxxxx.com:443/Serverstatus.ashx");

出于测试目的，您可以调用:ultimate-eur 而不是 ultimatxxxx.

For testing purposes you can call: ultimate-eur instead of ultimatxxxx.

它不起作用，但是当我加载没有 https 的普通 URL 时，我没有问题.我必须添加哪个参数才能让 Web 客户端也可以下载字符串?

It does not work, but when I load a normal URL without https I have no problems. Which argument do I have to add so that the Webclient can also download the string?

我想在 Monotouch 中使用该功能，但语言是 C#.

I want to use that feature in Monotouch, but language is C#.

推荐答案

如果您只想接受所有证书，则需要在提出请求之前设置证书检查:

If you just wish to accept all certificates, you'll need to set certificate check, before you make your request:

ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

这将接受所有证书.

虽然 - 如果您需要实际检查证书，请执行以下操作:

Although - if you need to actually check the certificate do something like:

ServicePointManager.ServerCertificateValidationCallback =
    (sender, certificate, chain, sslPolicyErrors) => 
    {
        //to check certificate
    };

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