initialize

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "rust-backend"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+actix-web = "4.11.0"
+serde = "1.0.219"

src/main.rs

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+use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
+use serde::{Deserialize, Serialize};
+
+// 定义响应数据结构
+#[derive(Serialize)]
+struct GreetingResponse {
+    message: String,
+}
+
+// 定义请求数据结构
+#[derive(Deserialize)]
+struct UserRequest {
+    name: String,
+    age: u8,
+}
+
+// 健康检查端点
+#[get("/health")]
+async fn health_check() -> impl Responder {
+    HttpResponse::Ok().body("Service is healthy")
+}
+
+// 根路径处理
+#[get("/")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok().body("Welcome to Rust Web Backend!")
+}
+
+// 带参数的问候端点
+#[get("/greet/{name}")]
+async fn greet(name: web::Path<String>) -> impl Responder {
+    let response = GreetingResponse {
+        message: format!("Hello, {}!", name),
+    };
+    HttpResponse::Ok().json(response)
+}
+
+// POST 请求处理
+#[post("/user")]
+async fn create_user(user: web::Json<UserRequest>) -> impl Responder {
+    let response = GreetingResponse {
+        message: format!("Created user: {} (age {})", user.name, user.age),
+    };
+    HttpResponse::Created().json(response)
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    println!("Starting server at http://localhost:8080");
+
+    HttpServer::new(|| {
+        App::new()
+            .service(health_check)
+            .service(index)
+            .service(greet)
+            .service(create_user)
+    })
+    .bind("127.0.0.1:8080")?
+    .run()
+    .await
+}