使用mqtt测试服务器测试mqtt通信

mqtt 订阅命令

mosquitto_sub -L mqtt://test.mosquitto.org:1883/const.net.cn/

mosquitto_sub -L参数说明

-L : specify user, password, hostname, port and topic as a URL in the form:

  mqtt(s)://[username[:password]@]host[:port]/topic

mqtt 发布命令

mosquitto_pub -L mqtt://test.mosquitto.org/const.net.cn/ -m 'mqtt hello world test.mosquitto.org 1883 : MQTT, unencrypted, unauthenticated'

带调试数据的 mqtt 发布命令

mosquitto_pub -L mqtt://test.mosquitto.org/const.net.cn/ -m 'mqtt hello world test.mosquitto.org 1883 : MQTT, unencrypted, unauthenticated' -d

Client mosq-m1kd4t2Yz2Hext8Zot sending CONNECT
Client mosq-m1kd4t2Yz2Hext8Zot received CONNACK (0)
Client mosq-m1kd4t2Yz2Hext8Zot sending PUBLISH (d0, q0, r0, m1, 'const.net.cn/', ... (77 bytes))
Client mosq-m1kd4t2Yz2Hext8Zot sending DISCONNECT

接收到的数据：

mosquitto_sub -L mqtt://test.mosquitto.org:1883/const.net.cn/ -v

const.net.cn/ mqtt hello world test.mosquitto.org 1883 : MQTT, unencrypted, unauthenticated
const.net.cn/ mqtt hello world test.mosquitto.org 1883 : MQTT, unencrypted, unauthenticated

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