您必须为每个发布者使用专用连接(因此:连接工厂).

You would have to use a dedicated connection (hence: connection factory) for each publisher.

或者，您可以使用 RabbitTemplate.execute() 并使用回调中提供的通道来发布所有消息.

Or, you could use RabbitTemplate.execute() and use the channel provided in the callback to publish al messages.