一、版本选择

二、安装教程

1、下载emqx

wget https://www.emqx.com/zh/downloads/broker/5.7.2/emqx-5.7.2-el7-amd64.rpm

2、安装emqx

sudo yum install emqx-5.7.2-el7-amd64.rpm -y

3、启动emqx

sudo systemctl start emqx

三、发布与订阅

sudo yum install mosquitto mosquitto-clients -y

1、订阅消息

mosquitto_sub -h localhost -t "test/topic"

2、发布消息

mosquitto_pub -h localhost -t "test/topic" -m "Hello MQTT"