【发布时间】:2018-02-02 23:47:16
【问题描述】:
我想使用 Hyper 来制作 HTTP 请求。调用Client::get 可以正常工作,但其他方法(例如Client::post 和Client::head)会导致编译错误。
extern crate futures;
extern crate hyper;
extern crate tokio_core;
use std::io::{self, Write};
use futures::{Future, Stream};
use hyper::Client;
use tokio_core::reactor::Core;
fn main() {
let mut core = Core::new().unwrap();
let client = Client::new(&core.handle());
let uri = "http://httpbin.org/ip".parse().unwrap();
let work = client.post(uri).and_then(|res| {
// if post changed to get it will work correctly
println!("Response: {}", res.status());
res.body("x=z")
.for_each(|chunk| io::stdout().write_all(&chunk).map_err(From::from))
});
core.run(work).unwrap();
}
错误:
error[E0599]: no method named `post` found for type `hyper::Client<hyper::client::HttpConnector>` in the current scope
--> src/main.rs:15:23
|
15 | let work = client.post(uri).and_then(|res| {
| ^^^^
error[E0277]: the trait bound `[u8]: std::marker::Sized` is not satisfied
--> src/main.rs:20:24
|
20 | .for_each(|chunk| io::stdout().write_all(&chunk).map_err(From::from))
| ^^^^^ `[u8]` does not have a constant size known at compile-time
|
= help: the trait `std::marker::Sized` is not implemented for `[u8]`
= note: all local variables must have a statically known size
【问题讨论】:
-
hyper::Client没有post方法!见:docs.rs/hyper/0.11.16/hyper/client/struct.Client.html#impl-2。它只有get()和request()。client.request(Request::new(Method::Post, uri))合适。 -
@daboross 看起来这是一个答案。您应该将其发布为答案,而不是评论。
-
@Boiethios 我愿意,但现在 Shepmaster 的回答在很大程度上是多余的。