3

我正在尝试运行基本reqwest 示例

extern crate reqwest;
extern crate tokio;

#[tokio::main]
async fn main() -> Result<(), reqwest::Error> {
    let res = reqwest::Client::new()
        .get("https://hyper.rs")
        .send()
        .await?;

    println!("Status: {}", res.status());

    let body = res.text().await?;

    println!("Body:\n\n{}", body);

    Ok(())
}

我得到的错误:

   --> src/main.rs:6:15
    |
6   |       let res = reqwest::Client::new()
    |  _______________^
7   | |         .get("https://hyper.rs")
8   | |         .send()
9   | |         .await?;
    | |______________^ the trait `std::future::Future` is not implemented for `std::result::Result<reqwest::Response, reqwest::Error>`

锈版本:rustc 1.39.0 (4560ea788 2019-11-04)

库版本:

reqwest = "0.9.22"
tokio = { version = "0.2.0-alpha.6", features = ["full"] }

有人知道这里有什么问题吗?

4

1 回答 1

5

与此处相同的问题,只是相反。您正在使用reqwest-0.9,默认情况下使用阻塞接口。更新以reqwest-0.10获取异步接口。

如果不能更新到reqwest-0.10,里面的异步接口reqwest-0.9reqwest::async. 例如reqwest::async::Client::new(...)

于 2019-12-01T12:48:56.087 回答