HTTP2

如果可能actix-web自动升级到HTTP/2.0的连接。

协议

HTTP/2.0 protocol over tls without prior knowledge requires tls alpn.

目前，只有rust-openssl支持

alpn协议需要启用该功能。启用后，HttpServer提供 serve_tls方法。 serve_tls method.

  1. [dependencies]
  2. actix-web = { version = "o.7", features = ["alpn"] }
  3. openssl = { version = "0.10", features = ["v110"] }
  1. use std::fs::File;
  2. use actix_web::*;
  3. use openssl::ssl::{SslMethod, SslAcceptor, SslFiletype};
  5. fn main() {
  6.     // load ssl keys
  7.     let mut builder = SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap();
  8.     builder.set_private_key_file("key.pem", SslFiletype::PEM).unwrap();
  9.     builder.set_certificate_chain_file("cert.pem").unwrap();
  11.     HttpServer::new(
  12.         || App::new()
  13.             .resource("/index.html", |r| r.f(index)))
  14.         .bind("127.0.0.1:8080").unwrap();
  15.         .serve_ssl(builder).unwrap();
  16. }

不支持升级到rfc section 3.2 节中描述的HTTP/2.0模式 。明文连接和tls连接都支持HTTP/2 with prior knowledge启动,rfc section 3.4

查看具体示例examples/tls.