如何在Actix 2.0中从请求中获取Cookie

use actix_web::{HttpRequest, web};

async fn handle_request(req: HttpRequest) -> String {
    // 获取名为"cookie_name"的Cookie值
    if let Some(cookie) = req.cookie("cookie_name") {
        let cookie_value = cookie.value();
        // 处理Cookie值
        return format!("Cookie value: {}", cookie_value);
    } else {
        // Cookie不存在的处理逻辑
        return "Cookie not found".to_string();
    }
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new()
            .route("/", web::get().to(handle_request))
    })
    .bind("127.0.0.1:8080")?
    .run()
    .await
}