fix:角色基础修正

backend/database/connect.py

@@ -3,6 +3,7 @@ from pathlib import Path
 import redis
 from sqlalchemy import create_engine
 from sqlalchemy.orm import Session
+from sqlalchemy.pool import NullPool
 from config.main import config
 
 RedisPool = redis.ConnectionPool.from_url(config.REDIS_URL)
@@ -21,7 +22,11 @@ def get_redis():
 @cache
 def get_db_engine(version='0'):
     db_path = BACKEND_DIR / 'dataFiles' / f'dcalc_{version}.db'
-    return create_engine(f'sqlite:///{db_path}', connect_args={'check_same_thread': False})
+    return create_engine(
+        f'sqlite:///{db_path}',
+        connect_args={'check_same_thread': False},
+        poolclass=NullPool,
+    )
 
 
 def get_db():