访问:https://www.rabbitmq.com/community-plugins.html 下载rabbitmq_delayed_message_exchange插件,
然后将插件文件(rabbitmq_delayed_message_exchange-4.0.2.ez)放置到RabbitMQ的插件目录(/usr/lib/rabbitmq/lib/rabbitmq_server-4.0.5/plugins)。
启动插件命令:rabbitmq-plugins enable rabbitmq_delayed_message_exchange