MQTT-单个带有记录数组的消息vs每个记录一个消息

如果想要传递多个记录的消息，可以在单个消息中包含一个记录数组，也可以分别发送每个记录，每个记录都是一个独立的消息。以下是Python代码示例：

单个带有记录数组的消息

import paho.mqtt.client as mqtt import json

records = [{"field1": 1, "field2": 2}, {"field1": 3, "field2": 4}] data = json.dumps(records)

client = mqtt.Client() client.connect("localhost", 1883, 60) client.publish("data_topic", data)

每个记录一个消息

import paho.mqtt.client as mqtt import json

records = [{"field1": 1, "field2": 2}, {"field1": 3, "field2": 4}]

client = mqtt.Client() client.connect("localhost", 1883, 60) for record in records: data = json.dumps(record) client.publish("data_topic", data)