我想在axum中使用HTPP/2，但我无法访问它，无论是用浏览器还是用httpie。我已经检查了axum和hyper的文档，由于我的英语和编程技能很差，我没有在网上找到任何信息，我希望在这里得到一些帮助

// src/main.rs
#[tokio::main]
async fn main() {
    let app = axum::Router::new().route("/", axum::routing::get(|| async {"Hello, World!"}));
    let addr = std::net::SocketAddr::from(([127,0,0,1], 8080));
    let _server = axum::Server::bind(&addr).serve(app.into_make_service()).await.unwrap();
}

# Cargo.toml
[dependencies.axum]
version = "0.6"
default-features = false
features = ["http2", "tokio", "matched-path"]

C:\Users\user>http :8080

http: error: ConnectionError: HTTPConnectionPool(host='localhost', port=8080): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x000002843AB5D670>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')) while doing a GET request to URL: http://localhost:8080/

当http1和http2都启用时，访问正常，但默认使用http1，当启用http2_only(true)时，它不工作。