简介

https://github.com/actix/actix-web

https://actix.rs/

https://crates.io/crates/actix-web

https://docs.rs/actix-rt/1.0.0/actix_rt/

https://docs.rs/actix/0.9.0/actix/

https://docs.rs/actix-web-actors/2.0.0/actix_web_actors/index.html

另外一个 Rust web 框架：

https://github.com/SergioBenitez/Rocket

web 框架性能测试排行：
https://www.techempower.com/benchmarks/

最简单的一个例子

Cargo.toml: 

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[dependencies]
actix-web = "2.0"
actix-rt = "1.0.0"

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use actix_web::{web, App, HttpRequest, HttpServer, Responder};

async fn greet(req: HttpRequest) -> impl Responder {
    let name = req.match_info().get("name").unwrap_or("World");
    format!("Hello {}!", &name)
}

#[actix_rt::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new()
            .route("/", web::get().to(greet))
            .route("/{name}", web::get().to(greet))
    })
    .bind("127.0.0.1:8002")?
    .run()
    .await
}