优化说明
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README.md
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README.md
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类名: `org.jetlinks.protocol.official.JetLinksProtocolSupportProvider`
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## MQTT(S)接入
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目前支持MQTT3.1.1和3.1版本协议.
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### 认证
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CONNECT报文:
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```
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clientId: 设备实例ID
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username: secureId+"|"+timestamp
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password: md5(secureId+"|"+timestamp+"|"+secureKey)
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```
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说明: `secureId`以及`secureKey`在创建设备产品和设备实例时进行配置.
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`timestamp`为当前系统时间戳(毫秒),与系统时间不能相差5分钟.
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### Topic
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- 读取设备属性:
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topic: `/{productId}/{deviceId}/properties/read`
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方向: `下行`
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消息格式:
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{
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"messageId":"消息ID",
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"deviceId":"设备ID",
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"properties":["sn","model"] //要读取到属性列表
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}
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回复Topic: `/{productId}/{deviceId}/properties/read/reply`
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回复消息格式:
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//成功
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{
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"messageId":"与下行消息中的messageId相同",
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"properties":{"sn":"test","model":"test"}, //key与设备模型中定义的属性id一致
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"deviceId":"设备ID",
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"success":true,
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}
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//失败. 下同
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{
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"messageId":"与下行消息中的messageId相同",
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"success":false,
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"code":"error_code",
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"message":"失败原因"
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}
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- 修改设备属性:
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topic: `/{productId}/{deviceId}/properties/write`
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消息格式:
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{
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"messageId":"消息ID",
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"deviceId":"设备ID",
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"properties":{"color":"red"} //要设置的属性
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}
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回复Topic: `/{productId}/{deviceId}/properties/wirte/reply`
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回复消息格式:
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{
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"messageId":"与下行消息中的messageId相同",
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"properties":{"color":"red"}, //设置成功后的属性,可不返回
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"success":true,
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}
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- 调用设备功能
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topic: `/{productId}/{deviceId}/function/invoke`
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消息格式:
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{
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"messageId":"消息ID",
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"deviceId":"设备ID",
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"function":"playVoice",//功能ID
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"inputs":[{"name":"text","value":"播放声音"}] //参数
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}
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回复Topic: `/{productId}/{deviceId}/function/invoke/reply`
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回复消息格式:
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{
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"messageId":"与下行消息中的messageId相同",
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"output":"success", //返回执行结果
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"success":true,
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}
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- 设备事件上报
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topic: /{productId}/{deviceId}/event/{eventId}
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消息格式:
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{
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"messageId":"随机消息ID",
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"data":100 //上报数据
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}
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拓展:
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定时上报属性:
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{
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"messageId":"随机消息ID",
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"data":{"color":"red"},//属性列表
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"headers":{"report-properties":true} //标记为上报属性事件
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}
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### 动态注册
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暂不支持
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## CoAP接入
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使用CoAP协议接入仅需要对数据进行加密即可.加密算法: AES/ECB/PKCS5Padding.
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使用自定义Option: `2100:设备ID` 来标识设备.
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将请求体进行加密,密钥为在创建设备产品和设备实例时进行配置的(`secureKey`).
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请求地址(`URI`)与MQTT `Topic`相同.消息体(`payload`)与MQTT相同.
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## DTLS接入
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使用CoAP DTLS 协议接入时需要先进行认证:
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发送认证请求:
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```text
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POST /auth
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Accept: application/json
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Content-Format: application/json
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2100: 设备ID
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2110: 签名 md5(payload+secureKey)
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payload: {"timestamp":"时间戳"}
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```
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响应结果:
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```text
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2.05 (Content)
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payload: {"token":"令牌"}
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```
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之后的请求中需要将返回的令牌携带到自定义Option:2111
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例如:
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```text
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POST /test/device1/event/fire_alarm
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2100: 设备ID
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2111: 令牌
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...其他Option
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payload: json数据
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```
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[查看说明](http://doc.jetlinks.cn/basics-guide/jetlinks-protocol-support.html)
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