使用HttpClient进行Https调用(Make Https call using HttpClient)

 我一直在使用HttpClient来使用C＃进行WebApi调用。 与WebClient相比，看起来整齐快捷。 不过，我在停电时Https困扰。 
 
 如何使以下代码进行Https调用？ 
 
HttpClient httpClient = new HttpClient();
httpClient.BaseAddress = new Uri("http://foobar.com/");
httpClient.DefaultRequestHeaders.Accept.Clear();
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml"));

var task = httpClient.PostAsXmlAsync<DeviceRequest>("api/SaveData", request);
 
 编辑：上面的代码可以正常进行http呼叫。 但是当我将计划改为https时，它不起作用。 这是获得的错误： 
 
 
 
 基础连接已关闭：无法为SSL / TLS安全通道建立信任关系。 
 
 
 编辑2：将方案更改为https是：第一步。 
 
 
 
 如何提供证书和公钥/私钥以及C＃请求。 
 

I have been using HttpClient for making WebApi calls using C#. Seems neat & fast way compared to WebClient. However I am stuck up while making Https calls.
 
How can I make below code to make Https calls?
 
HttpClient httpClient = new HttpClient();
httpClient.BaseAddress = new Uri("https://foobar.com/");
httpClient.DefaultRequestHeaders.Accept.Clear();
httpClient.DefaultRequestHeaders.Accept.Add(
                new MediaTypeWithQualityHeaderValue("application/xml"));

var task = httpClient.PostAsXmlAsync<DeviceRequest>(
                "api/SaveData", request);
 
EDIT 1: The code above works fine for making http calls. But when I change the scheme to https it does not work. Here is the error obtained:
 
 
 
The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
 
 
EDIT 2: Changing the scheme to https is: step one. 
 
 
 
How do I supply certificate & public / private key along with C# request.
 

原文：https://stackoverflow.com/questions/22251689