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我正在使用 Rust 开发一个非常简单的 HTTP 客户端,它建立在hyperGitHubcrates.io) crate 之上。

当我尝试使用(以及使用)examples/client.rs在新的 Cargo 项目中复制文件时,我收到多个错误,原因是从.cargo buildrustc src/main.rshyper

这是我的顶部main.rs

extern crate hyper;

use hyper::client::{Client, Request, Response, DefaultTransport as HttpStream};
use hyper::header::Connection;
use hyper::{Decoder, Encoder, Next};

除了一些注释外,该文件的其余部分与存储库中的examples/client.rs文件相同hyper

在编译时,我收到以下错误:

src/main.rs:10:48: 10:78 error: unresolved import `hyper::client::DefaultTransport`. There is no `DefaultTransport` in `hyper::client` [E0432]
src/main.rs:10 use hyper::client::{Client, Request, Response, DefaultTransport as HttpStream};
                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/main.rs:10:48: 10:78 help: run `rustc --explain E0432` to see a detailed explanation
src/main.rs:12:13: 12:20 error: unresolved import `hyper::Decoder`. There is no `Decoder` in `hyper` [E0432]
src/main.rs:12 use hyper::{Decoder, Encoder, Next};
                           ^~~~~~~
src/main.rs:12:13: 12:20 help: run `rustc --explain E0432` to see a detailed explanation
src/main.rs:12:22: 12:29 error: unresolved import `hyper::Encoder`. There is no `Encoder` in `hyper` [E0432]
src/main.rs:12 use hyper::{Decoder, Encoder, Next};
                                    ^~~~~~~
src/main.rs:12:22: 12:29 help: run `rustc --explain E0432` to see a detailed explanation
src/main.rs:12:31: 12:35 error: unresolved import `hyper::Next`. There is no `Next` in `hyper` [E0432]
src/main.rs:12 use hyper::{Decoder, Encoder, Next};
                                             ^~~~
src/main.rs:12:31: 12:35 help: run `rustc --explain E0432` to see a detailed explanation
src/main.rs:53:6: 53:40 error: trait `hyper::client::Handler` is not in scope [E0405]
src/main.rs:53 impl hyper::client::Handler<HttpStream> for Dump {
                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/main.rs:53:6: 53:40 help: run `rustc --explain E0405` to see a detailed explanation
src/main.rs:53:6: 53:40 help: you can to import it into scope: `use hyper::server::Handler;`.

如果它可能导致这个问题,这里是我的内容Cargo.toml

name = "my_project"
version = "0.0.1"
authors = ["email@example.com"]

[dependencies]
getopts = "0.2"
hyper = "0.9.6"

[[bin]]
name = "my_project"

一些导入实际上是有效的,所以假设存储库中的示例是最新的,我真的不知道出了什么问题。crate 的源文件看起来像是暴露了所涉及的类型,但我对 Rust 很陌生,所以我可能误读了这些文件。

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1 回答 1

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您正在使用来自 master 分支的示例,这些示例不适用于0.9.6版本。您可以查看分支上的示例0.9.6或直接从 github 使用 cargo hyper,写在Cargo.toml

[dependencies]                                     
hyper = {git = "https://github.com/hyperium/hyper"}
于 2016-05-26T21:28:00.843 回答