连接池

app/api/engine.py

@@ -93,8 +93,7 @@ class TAMP_SQL(object):
 
     def __init__(self, db_engine):
         # 创建DBSession类型:
-        self.db_engine = db_engine
-        self.DBSession = scoped_session(sessionmaker(bind=self.db_engine))
+        self.DBSession = scoped_session(sessionmaker(bind=db_engine))
         self.session = self.DBSession()
 
     def __enter__(self):
@@ -106,5 +105,4 @@ class TAMP_SQL(object):
         except:
             self.session.rollback()
         finally:
-            self.session.close()
-            self.db_engine.close()
+            self.session.remove()