订阅的主体payload内容为乱码怎么办

EMQX
1

2023-08-24T16:24:31.849415+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_received, packet: PUBLISH(Q1, R0, D0, Topic=device/device_53946, PacketId=59678, Payload= ºÒ )
2023-08-24T16:24:31.849619+08:00 [PUBLISH] device_53946@192.168.20.96:63092 msg: publish_to, topic: device/device_53946, payload: ºÒ 
2023-08-24T16:24:31.849722+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_sent, packet: PUBACK(Q0, R0, D0, PacketId=59678, ReasonCode=0)
2023-08-24T16:24:35.849877+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_received, packet: PUBLISH(Q1, R0, D0, Topic=device/device_53946, PacketId=32534, Payload= ºÒ )
2023-08-24T16:24:35.849980+08:00 [PUBLISH] device_53946@192.168.20.96:63092 msg: publish_to, topic: device/device_53946, payload: ºÒ 
2023-08-24T16:24:35.849980+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_sent, packet: PUBACK(Q0, R0, D0, PacketId=32534, ReasonCode=0)
2023-08-24T16:24:39.849828+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_received, packet: PUBLISH(Q1, R0, D0, Topic=device/device_53946, PacketId=33407, Payload= ºÒ )
2023-08-24T16:24:39.849931+08:00 [PUBLISH] device_53946@192.168.20.96:63092 msg: publish_to, topic: device/device_53946, payload: ºÒ 
2023-08-24T16:24:39.849931+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_sent, packet: PUBACK(Q0, R0, D0, PacketId=33407, ReasonCode=0)
2023-08-24T16:24:43.849779+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_received, packet: PUBLISH(Q1, R0, D0, Topic=device/device_53946, PacketId=3773, Payload= ºÒ )
2023-08-24T16:24:43.849881+08:00 [PUBLISH] device_53946@192.168.20.96:63092 msg: publish_to, topic: device/device_53946, payload: ºÒ 
2023-08-24T16:24:43.849881+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_sent, packet: PUBACK(Q0, R0, D0, PacketId=3773, ReasonCode=0)
2023-08-24T16:24:47.840821+08:00 [MQTT] device_53946@192.168.20.96:63092 msg: mqtt_packet_received, packet: PUBLISH(Q1, R0, D0, Topic=device/device_53946, PacketId=30242, Payload= ºÒ )
2023-08-24T16:24:47.840923+08:00 [PUBLISH] device_53946@192.168.20.96:63092 msg: publish_to, topic: device/device_53946, payload: ºÒ

本人刚开始接触MQTT，两眼一抹黑啊

2

不用担心，这里的只是一些日志打印。可能你本身的数据内容就是一些不可见的字符串