Python怎么判断sqlserver数据库连接是否断开

Question

Python怎么判断sqlserver数据库连接是否断开？（掉线）

Answer 1

已经解决了

def get_db():
    global db
    def db_connect():
        try:
            db = pymssql.connect(server='ip', user='user', password='password', database="database",
                                 timeout=20, autocommit=True)
        except Exception as e:
            print(e)
        else:
            return db
    if db is None:
        db = db_connect()
        return db
    else:
        try:
            cursor = db.cursor()
            cursor.execute("select getdate()")
            cursor.close()
            return db
        except Exception as e:
            print(e)
            db=db_connect()
            return db