问题描述
是否可以在 .NET 4.5 中使用新的 HttpClient 创建 HTTP HEAD 请求?我能找到的唯一方法是 GetAsync、DeleteAsync、PutAsync 和 PostAsync.我知道 HttpWebRequest 类能够做到这一点，但我想使用现代的 HttpClient.
Is it possible to create a HTTP HEAD request with the new HttpClient in .NET 4.5? The only methods I can find are GetAsync, DeleteAsync, PutAsync and PostAsync. I know that the HttpWebRequest-class is able to do that, but I want to use the modern HttpClient.
推荐答案
将 SendAsync 方法与使用 HttpMethod.Head 构造的 .HttpRequestMessage 实例一起使用
Use the SendAsync method with an instance of HttpRequestMessage that was constructed using HttpMethod.Head .
GetAsync、PostAsync 等是 方便的包装器围绕SendAsync；不太常见的 HTTP 方法，例如 HEAD、OPTIONS 等，没有包装器.
GetAsync, PostAsync, etc are convenient wrappers around SendAsync; the less common HTTP methods such as HEAD, OPTIONS, etc, don't get a wrapper.
简而言之:
client.SendAsync(new HttpRequestMessage(HttpMethod.Head, url))
这篇关于.NET 4.5 和 C# 中带有 HttpClient 的 HTTP HEAD 请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！