Java物联网_第3页-阿里云

[帮助文档] IoT Java SDK安装使用指南

物联网平台提供的Java SDK，可帮助开发人员通过Java程序更便捷地操作物联网平台。开发人员可以添加包含Maven依赖的SDK，也可以下载安装包到本地直接安装。

[帮助文档] 实例迁移相关系统中服务端的修改示例（Java）

实例迁移后相关业务的云端API运行需要切换到目标企业版实例下，因此您需开发更新数据库中设备所属实例ID信息的方法，以及在调用云端API控制设备服务时，传入更新后企业版实例ID的方法。本文以Java语言的开发环境为例，介绍实例迁移相关业务系统中服务端的修改示例。

「大师课」搞定 Java 开发基础

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Java Spring Boot 2.6.0开发实战-1024程序员节创造营公益课

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Java Web开发-Web应用、Tomcat、HTTP请求与响应

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[帮助文档] Java Link SDK使用过程中的常见问题和解决方法

本文介绍Java Link SDK使用过程中的常见问题。

[帮助文档] 使用JavaLinkSDK连接至物联网平台时的错误码及说明

本文介绍使用Java Link SDK连接至物联网平台时，可能返回给设备端的错误码及说明。

NB物联网之天翼物联（3）——初窥编解码插件（java开发物联网）

前言电信的编解码插件本意上是可以让我们的开发更加灵活，但是你好歹把文档写明白啊。。。同时在正常的生产中我们的产品不可能只使用电信的模块，有时甚至是客户要求使用移动还是电信的模块，所以兼容性给我们的体验非常直观！我们先不考虑兼容性问题，先把流程走通吧还是！编解码插件的两种形式1、线上编辑当大家刚看到线...

阿里云物联网的服务端订阅的Java的SDK只有一个消费组ID，如果要添加多个消费组id怎么办？

基于开源Java MQTT Client的阿里云物联网平台RRPC功能测试

作者：俏巴概述 MQTT协议是基于PUB/SUB的异步通信模式，不适用于服务端同步控制设备端返回结果的场景。物联网平台基于MQTT协议制定了一套请求和响应的同步机制，无需改动MQTT协议即可实现同步通信。物联网平台提供API给服务端，设备端只需要按照固定的格式回复PUB消息，服务端使用API，即可...

基于开源Java MQTT Client的阿里云物联网平台RRPC功能测试

概述 MQTT协议是基于PUB/SUB的异步通信模式，不适用于服务端同步控制设备端返回结果的场景。物联网平台基于MQTT协议制定了一套请求和响应的同步机制，无需改动MQTT协议即可实现同步通信。物联网平台提供API给服务端，设备端只需要按照固定的格式回复PUB消息，服务端使用API，即可同步获取设备...

阿里云物联网 implements MessageCallback 是不是一个java项目只能有一个

目前java项目里有两个类 implements MessageCallback，但是日志里只有DeviceConnectListener的信息，并没有BusinessListener的信息，所以想问一下，是不是一个java项目里只能有一个类 implements MessageCallback ...

物联网云端的java sdk，调用注册接口，报时间失效错误

"Code" : "InvalidTimeStamp.Expired" http://www.nearby123.com:20102/hotelDevice/device/registerDevice 这个方法报上面的错误，请问是什么原因？

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