36 lines
807 B
Python
36 lines
807 B
Python
# databases链接数据库
|
|
|
|
from sqlalchemy import *
|
|
from sqlalchemy.orm import sessionmaker,declarative_base
|
|
|
|
# 导入.env参数
|
|
import os
|
|
from dotenv import load_dotenv
|
|
load_dotenv( )
|
|
DB_USER = os.getenv("DB_USER", "root")
|
|
DB_PASSWORD = os.getenv("DB_PASSWORD", "")
|
|
DB_HOST = os.getenv("DB_HOST", "localhost")
|
|
DB_PORT = os.getenv("DB_PORT", "3306")
|
|
DB_NAME = os.getenv("DB_NAME", "student_manage_system")
|
|
|
|
db_url = f"mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}?charset=utf8mb4"
|
|
|
|
engine_all = create_engine(db_url)
|
|
|
|
Base_all = declarative_base()
|
|
|
|
Session = sessionmaker(bind=engine_all
|
|
,autoflush=False
|
|
,autocommit=False)
|
|
|
|
def get_db():
|
|
db = Session()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|
|
|
|
|
|
|
|
|