尝试获取完整的请求 URI（方案 + 权限 + 路径）
我找到了讨论：https://github.com/tokio-rs/axum/discussions/1149其中说 Request.uri() 应该有它。所以我尝试了以下方法：
use axum::body::Body;
use axum::http::Request;
use axum::routing::get;
use axum::Router;
async fn handler(req: Request<Body>) -> &'static str {
println!("The request is: {}", req.uri());
println!("The request is: {}", req.uri().scheme_str().unwrap());
println!("The request is: {}", req.uri().authority().unwrap());
"Hello world"
}
#[tokio::main]
async fn main() {
let app = Router::new().route("/test", get(handler));
axum::Server::bind(&"0.0.0.0:8080".parse().unwrap())
.serve(app.into_make_service())
.await
.unwrap();
}
运行curl -v "http://localhost:8080/test"但我得到：
The request is: /test
thread 'tokio-runtime-worker' panicked at 'called `Option::unwrap()` on a `None` value', src/main.rs:8:59
看起来它只包含路径。
我还发现了其他讨论：https://github.com/tokio-rs/axum/discussions/858
这表明axum::http::Uri应该能够提取所有细节，但我遇到了同样的问题：
The request is: /test
thread 'tokio-runtime-worker' panicked at 'called `Option::unwrap()` on a `None` value', src/main.rs:8:59
curl -v "http://localhost:8080/test"
The request is: /test
thread 'tokio-runtime-worker' panicked at 'called `Option::unwrap()` on a `None` value', src/main.rs:7:53
> cargo -V
cargo 1.68.0-nightly (2381cbdb4 2022-12-23)
> rustc --version
rustc 1.68.0-nightly (ad8ae0504 2022-12-29)
Cargo.toml
use axum::http::Uri;
use axum::routing::get;
use axum::Router;
async fn handler(uri: Uri) -> &'static str {
println!("The request is: {}", uri);
println!("The request is: {}", uri.scheme_str().unwrap());
println!("The request is: {}", uri.authority().unwrap());
"Hello world"
}
#[tokio::main]
async fn main() {
let app = Router::new().route("/test", get(handler));
axum::Server::bind(&"0.0.0.0:8080".parse().unwrap())
.serve(app.into_make_service())
.await
.unwrap();
}
中仅提供Uri. 您可以使用：RequestpathHost extractor
use axum::extract::Host;
use axum::http::Request;
#[tokio::main]
async fn main() {
// ...
let app = Router::new()
.route(
"/",
any(|Host(hostname): Host, request: Request<Body>| async move {
format!("Hi {hostname}")
}),
)
.layer(Extension(state));
// ...
}
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