Rust 如何防止使用actix web代理传输大文件时出现超时问题?
我想使用actix web作为一个简单的代理服务器,但是当我在流模式下使用大型文件时,服务器会出现超时错误,并且只下载文件的一小部分 我真的很困惑,因为这是来自actix web示例的示例代码Rust 如何防止使用actix web代理传输大文件时出现超时问题?,rust,streaming,rust-actix,Rust,Streaming,Rust Actix,我想使用actix web作为一个简单的代理服务器,但是当我在流模式下使用大型文件时,服务器会出现超时错误,并且只下载文件的一小部分 我真的很困惑,因为这是来自actix web示例的示例代码 extern crate actix; extern crate actix_web; extern crate env_logger; extern crate futures; use actix_web::{ client, middleware, server, App, AsyncRe
extern crate actix;
extern crate actix_web;
extern crate env_logger;
extern crate futures;
use actix_web::{
client, middleware, server, App, AsyncResponder, Body, Error, HttpMessage,
HttpRequest, HttpResponse,
};
use futures::{Future, Stream};
/// Stream client request response and then send body to a server response
fn index(_req: &HttpRequest) -> Box<Future<Item = HttpResponse, Error = Error>> {
client::ClientRequest::get("http://127.0.0.1:8081/")
.finish().unwrap()
.send()
.map_err(Error::from) // <- convert SendRequestError to an Error
.and_then(
|resp| resp.body() // <- this is MessageBody type, resolves to complete body
.from_err() // <- convert PayloadError to an Error
.and_then(|body| { // <- we got complete body, now send as server response
Ok(HttpResponse::Ok().body(body))
}))
.responder()
}
/// streaming client request to a streaming server response
fn streaming(_req: &HttpRequest) -> Box<Future<Item = HttpResponse, Error = Error>> {
// send client request
client::ClientRequest::get("https://gemmei.ftp.acc.umu.se/debian-cd/current/amd64/iso-cd/debian-9.7.0-amd64-netinst.iso")
.finish().unwrap()
.send() // <- connect to host and send request
.map_err(Error::from) // <- convert SendRequestError to an Error
.and_then(|resp| { // <- we received client response
Ok(HttpResponse::Ok()
// read one chunk from client response and send this chunk to a server response
// .from_err() converts PayloadError to an Error
.body(Body::Streaming(Box::new(resp.payload().from_err()))))
})
.responder()
}
fn main() {
::std::env::set_var("RUST_LOG", "actix_web=info");
env_logger::init();
let sys = actix::System::new("http-proxy");
server::new(|| {
App::new()
.middleware(middleware::Logger::default())
.resource("/streaming", |r| r.f(streaming))
.resource("/", |r| r.f(index))
}).workers(1)
.bind("127.0.0.1:8080")
.unwrap()
.start();
println!("Started http server: 127.0.0.1:8080");
let _ = sys.run();
}
此代码记录一个错误:
ERROR 2019-02-09T18:10:16Z:actix_web::pipeline:请求处理期间出错:等待响应时超时
错误2019-02-09T18:10:16Z:actix_web::server::h1:未处理的错误1:等待响应时超时
下载的数据的内容长度和文件名不正确:
您应该流式传输正文:使用
.streaming
而不是.body
:
使用actix\u web::client::client;
使用actix_web::{web,App,Error,HttpResponse,HttpServer};
使用futures::future::future;
fn main(){
HttpServer::新建(|||){
App::new()
.data(客户端::新建()
.route(“/”,web::to_async(处理程序))
})
.bind(“127.0.0.1:8000”)
.expect(“无法绑定到端口8000”)
.run()
.expect(“无法运行服务器”);
}
fn处理程序(客户端:web::Data)->impl-Future{
client.get(“https://gensho.ftp.acc.umu.se/debian-cd/current/amd64/iso-cd/debian-10.0.0-amd64-netinst.iso")
.send()
.map_err(错误::from)
.然后| res |{
HttpResponse::build(res.status()).streaming(res)
})
}
对于代理,请注意已更新为修复。您必须使用.timeout()
来更改超时,在客户端请求中,内容长度也必须由用户设置。@Shepmaster编辑所有生锈的答案以收集互联网点?甚至不确定您的编辑是什么,将,
更改为:
?
[dependencies]
env_logger = "0.5"
futures = "0.1"
actix = "0.7"
actix-web = { version="0.7", features=["ssl"] }