初始话项目框架

app/core/lifespan.py

@@ -0,0 +1,43 @@
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+
+from app.core.logger import log
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """应用生命周期管理：初始化和释放所有连接资源"""
+    from app.core.database import init_db, close_db
+    from app.core.redis import init_redis, close_redis
+    from pathlib import Path
+
+    # 启动：初始化资源
+    try:
+        log.info("初始化数据库连接")
+        await init_db()
+    except Exception as e:
+        log.error(f"数据库连接初始化失败: {e}")
+        raise e
+
+    try:
+        log.info("初始化redis连接")
+        await init_redis()
+    except Exception as e:
+        log.warning(f"Redis 连接初始化失败: {e}")
+        raise e
+    log.info("所有资源已初始化，应用启动完成")
+
+    # 打印 banner
+    banner_path = Path(__file__).parent.parent / "banner.txt"
+    if banner_path.exists():
+        print(banner_path.read_text(encoding="utf-8"))
+
+
+
+    yield
+
+    # 关闭：释放资源
+    await close_db()
+    await close_redis()
+    log.info("所有连接资源已释放")