feat: 优化后端服务中的数据库连接池管理策略

backend/main.py

@@ -1,16 +1,15 @@
 import logging
-from asyncio import run as asyncio_run
 
 from litestar import Litestar
 from litestar.openapi import OpenAPIConfig, OpenAPIController
 from litestar.openapi.spec import Server
-from sshared.api.uvicorn import get_uvicorn_params_from_config
+from sshared.api import LIFESPANS, get_app_state, get_uvicorn_params_from_config
 from sspeedup.api.litestar import EXCEPTION_HANDLERS
 from uvicorn import run as uvicorn_run
 
 from api import API_ROUTER
-from models import init_db
 from utils.config import CONFIG
+from utils.db import jianshu_pool, jpep_pool, jtools_pool
 from utils.log import logger
 
 logging.getLogger("httpx").setLevel(logging.CRITICAL)
@@ -42,12 +41,14 @@ class CustomOpenAPIController(OpenAPIController):
         root_schema_site="swagger",
         enabled_endpoints={"swagger", "openapi.json"},
     ),
+    state=get_app_state(
+        logger=logger,
+        db_pools=(jianshu_pool, jpep_pool, jtools_pool),
+    ),
+    lifespan=LIFESPANS,
 )
 
 if __name__ == "__main__":
-    asyncio_run(init_db())
-    logger.debug("初始化数据库成功")
-
     logger.info("启动 API 服务")
     uvicorn_run(
         app="main:app",

backend/utils/db.py

@@ -4,12 +4,21 @@
 
 enhance_json_process()
 
-jtools_pool = Pool(
-    CONFIG.jtools_postgres.connection_string, min_size=1, max_size=4, app_name="JTools"
-)
 jianshu_pool = Pool(
-    CONFIG.jianshu_postgres.connection_string, min_size=2, max_size=8, app_name="JTools"
+    CONFIG.jianshu_postgres.connection_string,
+    min_size=2,
+    max_size=8,
+    app_name="JTools",
 )
 jpep_pool = Pool(
-    CONFIG.jpep_postgres.connection_string, min_size=2, max_size=8, app_name="JTools"
+    CONFIG.jpep_postgres.connection_string,
+    min_size=2,
+    max_size=8,
+    app_name="JTools",
+)
+jtools_pool = Pool(
+    CONFIG.jtools_postgres.connection_string,
+    min_size=1,
+    max_size=4,
+    app_name="JTools",
 )