20 lines
543 B
Python
20 lines
543 B
Python
from sqlalchemy import *
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from sqlalchemy.orm import declarative_base,sessionmaker
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db_url = "mysql+pymysql://root:123456@127.0.0.1:3306/student?charset=utf8mb4" #创建连接对象
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engine = create_engine(db_url) #与数据库进行连接
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Base = declarative_base() # 执行函数，返回一个基类
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Session = sessionmaker(bind=engine
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,autoflush=False
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,autocommit = False
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)
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def get_db():
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db = Session()
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try:
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yield db
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finally:
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db.close() |