base.py 文件源码

def _get_init_db_session(self):
        """
        ???session,????session???session??
        ??????sessionid
        :raise gen.Return: session_key, ???
        """
        while True:
            session_key = get_random_string()
            try:
                yield self.db.execute("INSERT INTO session (session_key, session_data) VALUES (%s,%s)",
                                      (session_key, Json({})))
                self.set_cookie('sessionid', session_key)
                raise gen.Return(session_key)
            except IntegrityError:
                continue