你能用.NetCoreHttpClient实现Http/2多路复用吗？

我想我有答案(虽然肯定会重视反馈);

上面代码的问题是HttpClient正在接收request2,因为它有机会为request1创建TCP连接.因此,就HttpClient而言,没有与Multiplex的现有连接.

但是,如果我创建了一个初始请求(下面的request0)并允许HttpClient打开连接,则后续请求(1和2)使用该现有连接.

代码:

using (var httpClient = new HttpClient())
{
   // Setup first connection
   var request0 = new HttpRequestMessage(HttpMethod.Get, "https://www.google.com");
   request0.Version = new Version(2, 0);

   var task0 = httpClient.SendAsync(request0);
   var response0 = task0.Result;

   Console.WriteLine($"Response 0 - Http Version: {response0.Version}, Http Status Code: {response0.StatusCode}");

   // Now send the multiplexed requests
   var request1 = new HttpRequestMessage(HttpMethod.Get, "https://www.google.com");
   request1.Version = new Version(2, 0);

   var request2 = new HttpRequestMessage(HttpMethod.Get, "https://www.google.com");
   request2.Version = new Version(2, 0);

   var task1 = httpClient.SendAsync(request1);
   var task2 = httpClient.SendAsync(request2);

   Task.WaitAll(task1, task2);

   var response1 = task1.Result;
   var response2 = task2.Result;

   Console.WriteLine($"Response 1 - Http Version: {response1.Version}, Http Status Code: {response1.StatusCode}");
   Console.WriteLine($"Response 2 - Http Version: {response2.Version}, Http Status Code: {response2.StatusCode}");
}

和Wireshark证明(只有1个端口,1次握手):

我将继续进行进一步的研究,但这似乎是一个胜利者.如上所述,任何反馈都非常赞赏.

1> Mark Taylor..：

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我想我有答案(虽然肯定会重视反馈);

上面代码的问题是HttpClient正在接收request2,因为它有机会为request1创建TCP连接.因此,就HttpClient而言,没有与Multiplex的现有连接.

但是,如果我创建了一个初始请求(下面的request0)并允许HttpClient打开连接,则后续请求(1和2)使用该现有连接.

代码:

using (var httpClient = new HttpClient())
{
   // Setup first connection
   var request0 = new HttpRequestMessage(HttpMethod.Get, "https://www.google.com");
   request0.Version = new Version(2, 0);

   var task0 = httpClient.SendAsync(request0);
   var response0 = task0.Result;

   Console.WriteLine($"Response 0 - Http Version: {response0.Version}, Http Status Code: {response0.StatusCode}");

   // Now send the multiplexed requests
   var request1 = new HttpRequestMessage(HttpMethod.Get, "https://www.google.com");
   request1.Version = new Version(2, 0);

   var request2 = new HttpRequestMessage(HttpMethod.Get, "https://www.google.com");
   request2.Version = new Version(2, 0);

   var task1 = httpClient.SendAsync(request1);
   var task2 = httpClient.SendAsync(request2);

   Task.WaitAll(task1, task2);

   var response1 = task1.Result;
   var response2 = task2.Result;

   Console.WriteLine($"Response 1 - Http Version: {response1.Version}, Http Status Code: {response1.StatusCode}");
   Console.WriteLine($"Response 2 - Http Version: {response2.Version}, Http Status Code: {response2.StatusCode}");
}

和Wireshark证明(只有1个端口,1次握手):

我将继续进行进一步的研究,但这似乎是一个胜利者.如上所述,任何反馈都非常赞赏.

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限制MaxConnectionsPerServer也会强制进行多路复用.默认值为2147483647.`var handler = new WinHttpHander(); handler.MaxCOnnectionsPerServer= 1; var httpClient = new HttpClient(handler);`