一、reqwest 是什么

系统定制开发是一个简单而强大的 RUST HTTP 客户端，用于浏览器异步 HTTP 请求。支持 xmlHttpRequest, JSONP, CORS, 和 CommonJS 约束。

二、使用 reqwest 发起请求

1. 在 Cargo.tom 添加依赖

[dependencies]reqwest = { version = "0.11.11", features = ["json", "cookies"] }tokio = { version = "1", features = ["full"] }
1
2
3

2. main.rs

use std::collections::HashMap;use std::error::Error;use std::sync::Arc;use reqwest::{cookie::Jar, Url};use tokio;#[tokio::main]async fn main() {   let data = request_data().await.unwrap();   println!("{:?}", data);}async fn request_data() -> Result<String, Box<dyn Error>> {    let mut map = HashMap::new();    map.insert("q", "设置");    map.insert("page", "1");    map.insert("pageSize", "10");    map.insert("ctoken", "69_e6Yu_Zr_G8bLWy1KQNxaK");    println!("map: {:?}", map);    // 设置cookie    let cookie = "ctoken=69_e6Yu_Zr_G8bLWy1KQNxaK";    let url = "https://www.iconfont.cn".parse::<Url>().unwrap();    let jar = Jar::default();    jar.add_cookie_str(cookie, &url);    let client = reqwest::Client::builder()        .cookie_provider(Arc::new(jar))        .build()        .unwrap();    let res = client        .post("https://www.iconfont.cn/api/icon/search.json")        .json(&map)        .send()        .await?        .text()        .await?;    Ok(res)}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

三、文章参考