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BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
使用前必读 概述 MQTT是一种底层传输协议，一般用于网络通信，它提供有序有的、可靠的、双向字节流传输，支持设备到云端和云端到设备之间的消息传递，是基于发布/订阅模模式的“轻量级”通信协议。MQTT最大优点在于，可以以极少的代码和有限的带宽，为连接远程设备提供实时可靠的消息服务。
使用HTTP/HTTPS转发 概述 订阅推送的示意图如下图所示： 物联网平台采用HTTPS协议向应用服务器进行消息推送时，物联网平台需要校验应用服务器的真实性，需要在物联网平台上加载CA证书，该证书由应用服务器侧提供（调测时可自行制作调测证书，商用时建议更换为商用证书，否则会带来安全风险）。
f33759f5b3_demo/sys/events/up, msg = {"object_device_id":"661e35467bdccc0126d1a595_feng-sdk-test3","services":[{"paras":{"type":"DEVICE_STATUS"
huaweicloud.com/devg-iothub/iot_02_1004.html#section3 URL resource = BroadcastMessageSample.class.getClassLoader().getResource("ca.jks"); File file
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
f33759f5b3_demo/sys/events/up, msg = {"object_device_id":"661e35467bdccc0126d1a595_feng-sdk-test3","services":[{"paras":{"type":"DEVICE_STATUS"
//处理命令用户自定义 //发送命令响应 device.getClient().respondCommand(requestId, new CommandRsp(0)); } }); 上报设备属性。 Map<String
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
MQTT设备OTA升级 MQTT协议设备软件升级流程 MQTT协议SOTA升级流程的详细说明： 1～2. 用户在设备管理服务的控制台上传软件包，并在控制台或者应用服务器上创建软件升级任务。 3. 平台感知设备是否在线，当设备在线时立即触发升级协商流程。当设备不在线时，等待设备上线
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion
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