从Actix Web处理程序返回HTML或JSON

use actix_web::{web, App, HttpResponse, HttpServer, Responder};
use std::fs;

async fn index() -> impl Responder {
    let html = fs::read_to_string("static/index.html").unwrap();
    HttpResponse::Ok().body(html)
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new()
            .route("/", web::get().to(index))
    })
    .bind("127.0.0.1:8080")?
    .run()
    .await
}

use actix_web::{web, App, HttpResponse, HttpServer, Responder};
use serde::Serialize;

#[derive(Serialize)]
struct MyData {
    name: String,
    age: u8,
}

async fn get_data() -> impl Responder {
    let data = MyData {
        name: "Alice".to_string(),
        age: 30,
    };
    HttpResponse::Ok().json(data)
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new()
            .route("/data", web::get().to(get_data))
    })
    .bind("127.0.0.1:8080")?
    .run()
    .await
}

let html = fs::read_to_string("static/index.html").expect("Unable to read file");

#[derive(Serialize)]
struct MyData {
    name: String,
    age: u8,
}