java-tech-collect rabbitmq 包含原生rabbit client和sprint-boot两种形式下的RabbitMQ的使用;内容包含: push/pull,两种消息处理模式; 生产端:ConfirmCallback/ReturnCallback; 消费端:requeue, ack, prefetchCount, transaction, concurrency, retry; 死信队列(DLX); 备用交换机(AE);