问题描述
我想使用http / 2与cURL。首先，当我尝试这个 curl --http2 https://http2.akamai.com/ - 不支持协议时，我得到一个错误。我安装了nghttp2和重新安装cURL像它描述。错误消失了，我现在可以通过 curl --http2 获取数据。但是网页告诉我此浏览器不是HTTP / 2启用，而在chrome或直接通过nghttp2它说你现在正在使用HTTP / 2！。
I want to use http/2 with cURL. First I got an error when I tried this curl --http2 https://http2.akamai.com/ - "Protocol not supported". I installed nghttp2 and reinstalled cURL like it is described here. The error is gone and I can get data with the curl --http2 now. But the page https://http2.akamai.com/ tells me "This browser is not HTTP/2 enabled", while in chrome or directly via nghttp2 it says "You are using HTTP/2 right now!".
我使用mac os x，并通过homebrew安装所有依赖项的最新版本。卷曲源（7.41）我下载了
I'm using mac os x and installed all dependencies in the latest versions via homebrew. The curl sources (7.41) I downloaded here
推荐答案
您可能没有运行新构建的curl，或者您的新curl构建使用之前的libcurl安装。调用' curl --version '，并确保它列出了支持的HTTP2（包含在功能中）。
You're probably not running the newly built curl, or your new curl build is using the previous libcurl install. Invoke 'curl --version' and make sure it lists "HTTP2" as supported (included in Features).
您还需要确保使用支持ALPN（对于HTTP / 2 over TLS）的TLS库版本构建curl。如果您使用openssl构建，则需要版本1.0.2（或更高版本）。
You also need to make sure you build curl with an TLS library version that has support for ALPN (for HTTP/2 over TLS). If you build with openssl, you need version 1.0.2 (or later).
我现在只是尝试，并说您现在正在使用HTTP / 2！只是很好，当我尝试我的curl构建它像这样：
I just tried now on https://http2.akamai.com/ and it says "You are using HTTP/2 right now!" just fine when I try my curl build on it like this:
$ curl --http2 -kv https://http2.akamai.com/
您可以查看详细输出，您应该看到ALPN提供和什么协议curl并且服务器同意使用。
You can view the verbose output and you should see the ALPN offer and what protocol curl and the server agree on using.
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