rabbitMQ消息队列

       　　  1. rpm -ivh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
            2. rpm -ivh https://dl.bintray.com/rabbitmq/all/rabbitmq-server/3.7.7/rabbitmq-server-3.7.7-1.el7.noarch.rpm
            3. yum -y install erlang
            4. yum -y install rabbitmq-server
            5. service rabbitmq-server start

            6. 用户名和密码配置：
               sudo rabbitmqctl add_user wupeiqi 123
            7. 设置用户为administrator角色
               sudo rabbitmqctl set_user_tags wupeiqi administrator
            8. 设置权限
               sudo rabbitmqctl set_permissions -p "/" wupeiqi ".*" ".*" ".*"