HttpClient是否可以安全地同时使用？ [英] Is HttpClient safe to use concurrently?

问题描述

在所有的例子中，我可以找到HttpClient的用法，它用于一个关闭调用。但是，如果我有一个持久的客户端情况，其中可以同时进行多个请求？基本上，是安全的调用client.PostAsync在两个线程一次对同一个HttpClient实例。

In all the examples I can find of usages of HttpClient, it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient.

我不是真的在这里寻找实验结果。作为一个工作示例可以简单地是一个fluke（和持久的那个），一个失败的示例可能是一个配置错误的问题。理想情况下，我正在寻找HttpClient中并发处理问题的一些权威答案。

I am not really looking for experimental results here. As a working example could simply be a fluke (and a persistent one at that), and a failing example can be a misconfiguration issue. Ideally I'm looking for some authoritative answer to the question of concurrency handling in HttpClient.

推荐答案

根据MSDN ，自.NET 4.5以下实例方法是线程安全（感谢@ischell）：

According to MSDN, since .NET 4.5 The following instance methods are thread safe (thanks @ischell):

CancelPendingRequests
DeleteAsync
GetAsync
GetByteArrayAsync
GetStreamAsync
GetStringAsync
PostAsync
PutAsync
SendAsync

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