publisher
4、消息的持久化
exchange
1、confirmcallback
3、手动ack
consumer
配置：spring.rabbitmq.publisher-confirm-type=correlatedspring.rabbitmq.publisher-returns=true一、confirm和returnscallbackrabbitmqtemplate.setConfirmCallback()rabbitmqTemplate.setReturnsCallback()二、开启消息持久化channel.basicPublish(\"\"span class=\"token punctuation\
queue
2、returnscallback
