阿里云topic-阿里云

版本1.1.15 使用阿里云rocketmq，设置ak/sk后，启动后提示错误 Caused by: org.apache.rocketmq.client.exception.MQBrokerException: CODE: 1 DESC: the topic[binlog_prod_yaomait...

问：使用MQTT协议给单个设备进行OTA升级过程中，设备请求下载文件分片，阿里云无响应topic

小白提问：为什么使用MQTT协议给单个设备进行OTA升级时，设备请求下载文件分片，阿里云没有下发响应Topic？升级的设备为：STM32F103+esp8266 过程一：本人在使用MQTT协议给单个设备进行OTA升级过程中。使用平台提供的升级流程进行升级操作，如下图所示。(注：本人使用的是MQTT...

阿里云物联网平台之订阅设备topic主题

目前常见的订阅方法：1、基于设备端sdk或者开源的mqtt的subscribe订阅方法。2、设备模拟器里面直接订阅，如附件截图所示。 3、用mqtt.fx模拟设备端进行订阅。可以请参考：https://developer.aliyun.com/article/753229?groupCode=te...

阿里云物联网.NETCore客户端|CZGL.AliloTClient:3.订阅To pic与响应Topic

CZGL.AliIoTClient 将 Topic 分为五种分别是：普通Topic、属性上报、属性下发、事件上报、服务调用，除了普通 Topic，每种 Topic 都有消息的发送、响应。普通 Topic ，消息发送或，根据 MQTT 协议，SDK 严格保证消息能够到达另一端。设备推送属性、事件等数据...

阿里云物联网平台之设备topic列表为什么为空

为什么物联网里产品里有topic，挂在它下面的设备topic列表里是空的？是不是没有映射到设备下？首先注意下这个是已订阅topic列表，翻译过来说就是设备端已经订阅的topic才会显示在里面，很多用户说我产品下面是有很多topic的，但是设备下面却没有，是不是不能用啊，这里说明一下，产品下的top...

在阿里云物联网平台在设备下建立的物模型订阅的是哪个TOPIC　如何找到对应的TOPIC

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更新时间 2023-08-29 23:03:28

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