生成二进制文件，将其扔到环境变量的path下即可~
用rust打造实时天气命令行工具
找到合适的API
使用该api
如请求 api.openweathermap.org/data/2.5/weather?q=Beijing&appid=your_key:
{ "coord": { "lon": 116.3972, "lat": 39.9075 }, "weather": [{ "id": 803, "main": "Clouds", "description": "broken clouds", "icon": "04d" }], "base": "stations", "main": { "temp": 293.35, "feels_like": 292.34, "temp_min": 291.09, "temp_max": 294.13, "pressure": 1026, "humidity": 35, "sea_level": 1026, "grnd_level": 1020 }, "visibility": 10000, "wind": { "speed": 4.86, "deg": 344, "gust": 7.43 }, "clouds": { "all": 73 }, "dt": 1634262993, "sys": { "type": 2, "id": 2021025, "country": "CN", "sunrise": 1634250256, "sunset": 1634290552 }, "timezone": 28800, "id": 1816670, "name": "Beijing", "cod": 200 }
初始化项目&coding
使用cargo new rust_weather 初始化一个项目。
对于cargo.toml文件：
[package] name = "rust_weather" version = "0.1.0" edition = "2018" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] structopt = "0.3.21" exitfailure = "0.5.1" serde = "1.0.114" serde_json = "1.0.56" serde_derive = "1.0.114" reqwest = { version = "0.11", features = ["json"] } tokio = { version = "1", features = ["full"] }
对于src/main.rs文件：
use exitfailure::ExitFailure; use reqwest::Url; use serde_derive::{Deserialize, Serialize}; use structopt::StructOpt; #[derive(Serialize,Deserialize,Debug)] struct W { coord: Coord, weather: Weather, base: String, main: Main, } impl W { async fn get(city: &String) -> Result<Self, ExitFailure> { let url = format!("https://api.openweathermap.org/data/2.5/weather?q={}&appid=40452068d845180226c3f289341974b7", city); // 转换为url let url = Url::parse(&*url)?; let resp = reqwest::get(url).await?.json::<W>().await?; Ok(resp) } } #[derive(Serialize,Deserialize,Debug)] struct Coord { lon: f64, lat: f64, } #[derive(Serialize,Deserialize,Debug)] struct Weather { details: Details, } #[derive(Serialize,Deserialize,Debug)] struct Details { id: i32, main: String, description: String, icon: String, } #[derive(Serialize,Deserialize,Debug)] struct Main { temp: f64, feels_like: f64, temp_min: f64, temp_max: f64, pressure: i32, humidity: i32, } #[derive(StructOpt)] struct Input { city: String } #[tokio::main] async fn main() -> Result<(), ExitFailure> { let input = Input::from_args(); //println!("{}", input.city); let resp = W::get(&input.city).await?; println!("{} \n 天气: {} \n 当前温度: {} \n 最高温度: {} \n 最低温度: {} \n 湿度: {}", input.city, resp.weather.details.main, resp.main.temp, resp.main.temp_max, resp.main.temp_min, resp.main.humidity); //println!("Hello, world!"); Ok(()) }
使用cargo run Beijing进行调试
直到能够准确输出预订结果，如下：
➜ rust_weather git:(master) ✗ cargo run Beijing Finished dev [unoptimized + debuginfo] target(s) in 0.13s Running `target/debug/rust_weather Beijing` Beijing 天气: Clouds 当前温度: 293.35 最高温度: 294.13 最低温度: 291.09 湿度: 35
将二进制文件移动到系统PATH路径下
此时target/debug/rust_weather即想要的二进制文件，可将其复制到任意一个系统PATH路径下
echo $PATH
/opt/homebrew/opt/node@12/bin:/Users/fliter/.nvm/versions/node/v16.9.0/bin:/usr/local/Cellar/mysql@5.7/5.7.28/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/go/bin:/Users/fliter/.cargo/bin:/usr/local/go/bin:/Users/fliter/go/bin:/Users/fliter/Downloads/:/bin:/usr/local/MongoDB/bin:/usr/local/Cellar/ffmpeg/4.3.1/bin:/Users/fliter/.cargo/bin
还可以重命名，如改为weather,复制到usr/local/bin下，而后source .zshrc
在任意命令行窗口下，执行 weather Binzhou:
Binzhou 天气: Rain 当前温度: 291.63 最高温度: 291.63 最低温度: 291.63 湿度: 67
