Spring-amqp 1.6.1 生产者与消费者消息确认配置与使用1.什么是Publisher Confirms and Returns？2.如何通过Spring amqp来使用Publisher Confirms and Returns机制？3.消费者对消息的确认4.配置多个消费者并关联到同一个队列5.示例中的配置与代码一些参考：
1什么是Publisher Confirms and Returns？ Delivery processing acknowledgements from consumers to RabbitMQ are known as acknowledgements in AMQP 0-9-1 parlance; broker acknowledgements to publishers are a p
