现在下载所需插件:http://www.rabbitmq.com/community-plugins.html
ctrl+f快捷键搜索rabbitmq_delayed_message_exchange
将解压的文件放入你安装好的Rabbitmq目录的plugin文件夹里，
然后在进入到sbin里，cmd，输入rabbitmq-plugins enable rabbitmq_delayed_message_exchange，
提示出
The following plugins have been configured:
rabbitmq_delayed_message_exchange
rabbitmq_management
rabbitmq_management_agent
rabbitmq_web_dispatch
,然后重启MQ服务
rabbitmqctl stop_app
rabbitctl start_app
再打开RabbitMQ官网看看Exchanges里面有没有该类型