初始化

main.py

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+import logging
+
+import models
+from contextlib import asynccontextmanager
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from sqlmodel import SQLModel
+from core.db import engine
+from core.config.settings import settings
+from api.scheduler_api import scheduler_router
+from api.lottery_api import lottery_router
+from core.task.dlt_scheduler import scheduler
+
+# 配置日志
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+)
+
+logger = logging.getLogger(__name__)
+
+# lifespan生命周期
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # ========== 启动时执行 ==========
+    logger.info("服务启动，开始创建数据表")
+    # 同步建表
+    SQLModel.metadata.create_all(engine)
+
+    # 启动定时调度器
+    scheduler.start()
+
+    yield   # 此处交出控制权，服务开始运行
+    # ========== 关闭时执行 ==========
+    logger.info("服务关闭，释放资源")
+    scheduler.shutdown()
+
+app = FastAPI(lifespan=lifespan)
+app.include_router(scheduler_router)
+app.include_router(lottery_router)
+
+app.add_middleware(
+    CORSMiddleware, # type: ignore[arg-type]
+    allow_origins=settings.ALLOWED_ORIGINS,
+    allow_credentials=True,
+    allow_methods=settings.ALLOWED_METHODS,
+    allow_headers=settings.ALLOWED_HEADERS,
+)
+
+@app.get("/")
+def main():
+    return {"message": "Hello World"}
+
+
+# 启动服务 --> uvicorn: Python中的轻量级web服务器
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8000)