浇水bug修改
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docs/mqtt-spec.md
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docs/mqtt-spec.md
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# Water MQTT 通信协议说明文档
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## 1. 系统架构概览
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```
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┌─────────────┐ MQTT Broker ┌─────────────────┐
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│ 物理设备 │ ◄══════════════════► │ Water 后端服务 │
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│ (ESP32等) │ (SSL/TCP连接) │ (Spring Boot) │
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└─────────────┘ └─────────────────┘
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│ │
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│ 上行 (publish) │ 下行 (subscriber)
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│ /{identity}/publish/xxx │ /{deviceNo}/subscriber/xxx
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│ │
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▼ ▼
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设备注册、数据上报、 命令下发、排程同步、
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浇水完成、异常告警、ACK 设备绑定/解绑/初始化
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```
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### 核心组件
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| 组件 | 包路径 | 职责 |
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|------|--------|------|
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| `MqttClientManager` | `org.dromara.mqtt` | MQTT 客户端连接管理、消息收发 |
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| `MqttMessageDispatcher` | `org.dromara.app.mqtt` | 上行消息路由分发(策略模式) |
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| `MqttTopicHandler` | `org.dromara.app.mqtt` | 上行消息处理器接口 |
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| `DeviceMqttCommandPublisher` | `org.dromara.mqtt` | 下行命令发布器 |
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| `DeviceCommandServiceImpl` | `org.dromara.app.service.impl` | 命令构造与业务编排 |
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| `MqttCommandAckService` | `org.dromara.mqtt` | 命令 ACK 确认与重试 |
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| `DeviceIdentityResolver` | `org.dromara.app.handler` | 设备标识解析(MAC/设备编号 → deviceNo) |
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---
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## 2. Topic 约定
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### 2.1 上行 Topic(设备 → 服务端)
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服务端通过通配符订阅(如 `+/publish/#`),由 `MqttMessageDispatcher` 按正则分发到对应 Handler。
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| Topic 模式 | 正则 | 处理器 | 说明 |
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|------------|------|--------|------|
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| `/{identity}/publish/register` | `^/([^/]+)/publish/register$` | `DeviceRegisterHandler` | 设备注册/上线 |
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| `/{identity}/publish/power` | `^/([^/]+)/publish/power$` | `DeviceDataHandler` | 电量数据上报 |
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| `/{identity}/publish/finish/key` | `^/([^/]+)/publish/finish/key$` | `KeyFinishHandler` | 按键/手动浇水完成 |
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| `/{identity}/publish/finish/schedule` | `^/([^/]+)/publish/finish/schedule$` | `ScheduleFinishHandler` | 排程浇水完成 |
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| `/{identity}/publish/error` | `^/([^/]+)/publish/error$` | `ErromesHandler` | 设备异常告警 |
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| `/{identity}/publish/ack` | `^/([^/]+)/publish/ack$` | `DeviceCommandAckHandler` | 命令执行确认 |
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> `{identity}` 可以是设备编号(deviceNo)或 MAC 地址,由 `DeviceIdentityResolver` 统一解析为 deviceNo。
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### 2.2 下行 Topic(服务端 → 设备)
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| Topic 模式 | 用途 | 构造方式 |
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|------------|------|---------|
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| `/{deviceNo}/subscriber/cmd` | 通用命令下发 | `DeviceMqttCommandPublisher.buildCommandTopic()` |
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| `/{deviceNo}/subscriber/schedule` | 排程专用下发 | `DeviceCommandServiceImpl.buildScheduleTopic()` |
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> 可通过 `mqtt.topics.publish-prefix` 配置前缀,如配置为 `/water`,则实际 Topic 为 `/water/{deviceNo}/subscriber/cmd`。
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> `deviceNo` 统一为小写格式。
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---
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## 3. 消息格式
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### 3.1 下行命令通用结构(DeviceCommand)
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所有下行命令通过 `DeviceCommand` 对象构造,最终以 `payload` 字段的 JSON 发送到 MQTT。
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```java
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// DeviceCommand 字段
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String commandId; // 命令唯一标识(UUID,自动生成)
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String deviceNo; // 设备编号
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String deviceMac; // 设备 MAC 地址
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String commandType; // 命令类型
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String topic; // 发送目标 Topic(可自定义,默认自动构建)
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Map<String, Object> payload; // 命令负载(最终序列化为 JSON 发送)
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int retryCount; // 当前重试次数
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long createdAt; // 创建时间戳
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long lastSentAt; // 最后发送时间戳
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long nextRetryAt; // 下次重试时间戳
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```
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发送时自动注入到 payload 的字段:
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```json
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{
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"commandId": "自动生成的UUID",
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"commandType": "命令类型",
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// ... 其他业务字段
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}
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```
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### 3.2 上行 ACK 结构(DeviceCommandAck)
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```json
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{
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"commandId": "对应下发命令的commandId",
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"status": "1",
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"message": "可选的文本消息"
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}
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```
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> 也支持非 JSON 格式的纯文本 ACK(当设备只有一条待确认命令时可自动匹配)。
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---
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## 4. 下行命令类型详解
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### 4.1 设备开关命令 — `switchDevice`
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**触发**: 用户手动开启/关闭设备浇水
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**接口**: `PUT /app/v1/switchDevice`
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**Topic**: `/{deviceNo}/subscriber/cmd`
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```json
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{
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"commandId": "xxx",
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"commandType": "switchDevice",
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"deviceNo": "01",
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"cmd": "1",
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"startTime": "2026-06-25 14:35:00",
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"durationMin": 20
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}
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```
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| 字段 | 类型 | 说明 |
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|------|------|------|
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| `cmd` | String | `"1"` = 开启浇水,`"0"` = 停止浇水 |
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| `startTime` | String | 开始时间(`yyyy-MM-dd HH:mm:ss` 或 `HH:mm`) |
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| `durationMin` | Integer | 持续时间(分钟),开启时必填且 > 0 |
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**附加行为**:
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- 开启时自动创建手动浇水日志记录
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- 停止时自动结束进行中的手动浇水日志
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---
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### 4.2 设备绑定命令 — `bindDevice`
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**触发**: 用户在 APP 绑定设备
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**接口**: `POST /app/v1/addDevice`
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**Topic**: `/{deviceNo}/subscriber/cmd`
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```json
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{
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"commandId": "xxx",
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"commandType": "bindDevice",
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"bindStatus": true,
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"deviceNo": "01",
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"cmd": -1
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}
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```
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| 字段 | 类型 | 说明 |
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|------|------|------|
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| `bindStatus` | Boolean | `true` = 已绑定 |
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| `deviceNo` | String | 分配给设备的编号 |
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| `cmd` | Integer | `-1` = 非浇水指令 |
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---
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### 4.3 设备初始化/解绑命令 — `initDevice`
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**触发**: 用户删除/解绑设备
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**接口**: `DELETE /app/v1/deleteDevice/{deviceNos}`
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**Topic**: `/{deviceNo}/subscriber/cmd`
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```json
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{
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"commandId": "xxx",
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"commandType": "initDevice",
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"deviceNo": "01",
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"initStatus": true,
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"cmd": "init"
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}
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```
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| 字段 | 类型 | 说明 |
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|------|------|------|
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| `initStatus` | Boolean | `true` = 需要恢复出厂设置 |
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| `cmd` | String | `"init"` = 初始化指令 |
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**附加行为**: 服务端同时清除用户绑定、排程关联、浇水日志。
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---
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### 4.4 设备编号下发 — `registerDeviceNo`
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**触发**: 设备通过 MQTT 注册上线后,服务端自动回复
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**接口**: 无(`DeviceRegisterHandler` 自动触发)
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**Topic**: `/{deviceMac}/subscriber/cmd`
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> 这是唯一保留 MAC 作为 Topic 第一段的下行命令;其余下行命令统一使用 `deviceNo`。
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```json
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{
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"commandId": "xxx",
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"commandType": "registerDeviceNo",
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"deviceNo": "01",
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"deviceMac": "aa:bb:cc:dd:ee:ff"
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}
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```
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---
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### 4.5 排程绑定命令 — `bindSchedule`
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**触发**: 用户绑定排程到设备 / 修改排程内容 / 修改排程状态
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**接口**: `POST /app/v1/addScheduleDevice` · `PUT /app/v1/updataschedule` · `PUT /app/v1/editScheduleStatus`
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**Topic**: `/{deviceNo}/subscriber/schedule`(排程专用 Topic)
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```json
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{
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"commandId": "xxx",
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"commandType": "bindSchedule",
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"cmd": -1,
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"deviceNo": "01",
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"schedule": {
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"id": 1,
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"name": "每日浇水",
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"status": "1"
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},
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"details": [
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{
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"id": 10,
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"weekday": "1",
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"timeData": [
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{ "startTime": "08:00", "durationMin": 15 },
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{ "startTime": "18:00", "durationMin": 10 }
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],
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"triggerType": "0",
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"status": "1"
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}
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]
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}
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```
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| 字段 | 类型 | 说明 |
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|------|------|------|
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| `schedule.id` | Long | 排程 ID |
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| `schedule.name` | String | 排程名称 |
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| `schedule.status` | String | `"1"` = 启用,`"0"` = 停用 |
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| `details[].weekday` | String | 星期几(`1`-`7`) |
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| `details[].timeData` | Array | 时间段列表 |
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| `details[].triggerType` | String | 触发类型 |
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| `details[].status` | String | 明细状态 |
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---
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### 4.6 排程解绑命令 — `unbindSchedule`
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**触发**: 用户删除排程与设备的绑定关系 / 删除排程
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**接口**: `DELETE /app/v1/deleteScheduleDevice` · `DELETE /app/v1/deleteschedule/{ids}`
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**Topic**: `/{deviceNo}/subscriber/schedule`
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```json
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{
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"commandId": "xxx",
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"commandType": "unbindSchedule",
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"cmd": -1,
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"deviceNo": "01",
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"scheduleId": 1,
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"unbind": true
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}
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```
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| 字段 | 类型 | 说明 |
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|------|------|------|
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| `scheduleId` | Long | 要解绑的排程 ID |
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| `unbind` | Boolean | `true` = 解绑 |
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---
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### 4.7 自定义命令 — 任意 `commandType`
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**触发**: 通过 `sendCustomCommand` 接口下发
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**Topic**: `/{deviceNo}/subscriber/cmd`
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```json
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{
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"commandId": "xxx",
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"commandType": "自定义类型",
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// ... 自定义扩展字段
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}
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```
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---
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## 5. 上行消息类型详解
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### 5.1 设备注册 — `/{identity}/publish/register`
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设备上电或重连后发送注册消息。
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```json
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{
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"deviceName": "花园浇水器",
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"deviceMac": "aa:bb:cc:dd:ee:ff",
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"powerLevel": "85",
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"deviceEm": "型号",
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"deviceSn": "序列号",
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"version": "1.0.0"
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}
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```
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**服务端处理**:
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1. 通过 MAC 或设备编号解析入库设备
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2. 更新设备注册信息(名称、电量、固件版本等)
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3. 刷新设备在线状态到 Redis
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4. 自动回复设备编号(`registerDeviceNo` 命令)
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---
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### 5.2 电量上报 — `/{identity}/publish/power`
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```json
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{
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"powerLevel": "78"
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}
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```
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**服务端处理**: 更新设备电量 + 刷新在线状态。
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---
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### 5.3 按键浇水完成 — `/{identity}/publish/finish/key`
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```json
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{
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"deviceNo": "01",
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"commandId": "对应的命令ID",
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"startTime": "2026-06-25 08:00:00",
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"endTime": "2026-06-25 08:15:00",
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"durationMin": 15,
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"triggerON": "schedule 或其他"
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}
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```
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**服务端处理**:
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- `triggerON = "schedule"` → 排程触发,调用 `confirmScheduleLog`
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- 其他 → 手动触发,调用 `insertByBo` 创建新记录
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---
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### 5.4 排程浇水完成 — `/{identity}/publish/finish/schedule`
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```json
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{
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"deviceNo": "01",
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"commandId": "对应的命令ID",
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"startTime": "2026-06-25 08:00:00",
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"endTime": "2026-06-25 08:15:00",
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"durationMin": 15,
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"triggerON": "mqtt on 或其他"
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}
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```
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**服务端处理**: 调用 `confirmScheduleLog` 记录排程浇水日志。
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`triggerON = "mqtt on"` 时标记为手动触发类型。
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---
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### 5.5 设备异常告警 — `/{identity}/publish/error`
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```json
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{
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"errorCode": "E001",
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"message": "水泵故障"
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}
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```
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**服务端处理**: 当前仅日志记录,未做告警推送。
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---
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### 5.6 命令 ACK — `/{identity}/publish/ack`
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```json
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{
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"commandId": "对应的命令ID",
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"status": "1",
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"message": "执行成功"
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}
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```
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**服务端处理**:
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1. 从 Redis 移除 pending 命令
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2. 缓存 ACK 结果
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3. 刷新设备在线状态
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---
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## 6. 命令可靠性机制
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### 6.1 命令生命周期
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```
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构造命令 → 存入 Redis(pending) → 发布到 MQTT → 等待 ACK
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↓ ↓
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定时扫描 收到 ACK
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↓ ↓
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超时未确认? 从 pending 移除
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↓ 存入 Redis(ack)
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重试(最多 3 次)
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↓
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达到上限? → 放弃并记录日志
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```
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### 6.2 重试策略
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| 配置项 | 默认值 | 说明 |
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|--------|--------|------|
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| `maxRetryCount` | 3 | 最大重试次数 |
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| `retryIntervalMs` | 5000 | 重试间隔(ms) |
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| `scanIntervalMs` | 5000 | 定时扫描间隔(ms) |
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| `pendingTtlSeconds` | 86400 | pending 命令 TTL(秒) |
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| `ackTtlSeconds` | 86400 | ACK 结果缓存 TTL(秒) |
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### 6.3 离线处理
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- 重试前检查设备在线状态(Redis 缓存)
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- 设备离线时不执行 MQTT 发布,仅递增重试计数
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- 达到最大重试次数后自动放弃
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### 6.4 Redis 键规则
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| Key 模式 | 说明 |
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|---------|------|
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| `mqtt:command:pending:{commandId}` | 待确认命令 |
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| `mqtt:command:ack:{commandId}` | ACK 确认结果 |
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||||
| `mqtt:command:pending:ids` | 待确认命令 ID 集合(Set) |
|
||||
| `lock:mqtt:command:retry:{commandId}` | 命令操作分布式锁 |
|
||||
| `mqtt:device:status:{deviceNo}` | 设备在线状态缓存 |
|
||||
| `lock:mqtt:device:status:{deviceNo}` | 设备状态写入锁 |
|
||||
|
||||
---
|
||||
|
||||
## 7. 接口 → MQTT 命令映射表
|
||||
|
||||
| 接口 | 路由 | MQTT 命令类型 | 备注 |
|
||||
|------|------|--------------|------|
|
||||
| 绑定设备 | `POST /addDevice` | `bindDevice` | Service 层下发 |
|
||||
| 解绑设备 | `DELETE /deleteDevice/{deviceNos}` | `initDevice` | Service 层下发(每台设备) |
|
||||
| 开关设备 | `PUT /switchDevice` | `switchDevice` | Service 层下发 + 浇水日志 |
|
||||
| 绑定排程设备 | `POST /addScheduleDevice` | `bindSchedule` | Controller 层下发 |
|
||||
| 解绑排程设备 | `DELETE /deleteScheduleDevice` | `unbindSchedule` | Controller 层下发 |
|
||||
| 修改排程状态 | `PUT /editScheduleStatus` | `bindSchedule` | 向所有绑定设备重新下发 |
|
||||
| 修改排程内容 | `PUT /updataschedule` | `bindSchedule` | 向所有绑定设备重新下发 |
|
||||
| 删除排程 | `DELETE /deleteschedule/{ids}` | `unbindSchedule` | 删除前通知所有绑定设备 |
|
||||
| 设备注册(自动) | — | `registerDeviceNo` | 设备上线后自动回复 |
|
||||
|
||||
---
|
||||
|
||||
## 8. 配置参考
|
||||
|
||||
```yaml
|
||||
mqtt:
|
||||
enabled: true
|
||||
broker-url: ssl://your-broker:8883
|
||||
client-id: water-server-01
|
||||
username: server
|
||||
password: xxxxxx
|
||||
qos: 1
|
||||
keep-alive: 60
|
||||
connection-timeout: 30
|
||||
max-inflight: 1000
|
||||
clean-session: false
|
||||
automatic-reconnect: true
|
||||
|
||||
tls:
|
||||
enabled: true
|
||||
skip-verify: false
|
||||
|
||||
topics:
|
||||
subscribe:
|
||||
- "+/publish/#"
|
||||
publish-prefix: "" # 为空时 Topic = /{deviceNo}/subscriber/cmd
|
||||
|
||||
async:
|
||||
core-pool-size: 8
|
||||
max-pool-size: 32
|
||||
consumer-count: 16
|
||||
queue-capacity: 5000
|
||||
batch-size: 100
|
||||
offer-timeout-ms: 50
|
||||
poll-timeout-ms: 100
|
||||
|
||||
command-ack:
|
||||
enabled: true
|
||||
max-retry-count: 3
|
||||
retry-interval-ms: 5000
|
||||
scan-interval-ms: 5000
|
||||
pending-ttl-seconds: 86400
|
||||
ack-ttl-seconds: 86400
|
||||
pending-key-prefix: "mqtt:command:pending:"
|
||||
ack-key-prefix: "mqtt:command:ack:"
|
||||
pending-set-key: "mqtt:command:pending:ids"
|
||||
retry-lock-key-prefix: "lock:mqtt:command:retry:"
|
||||
retry-lock-ttl-ms: 30000
|
||||
device-status-cache-prefix: "mqtt:device:status:"
|
||||
device-status-cache-ttl-seconds: 300
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 9. 扩展指南
|
||||
|
||||
### 新增上行消息处理器
|
||||
|
||||
1. 实现 `MqttTopicHandler` 接口
|
||||
2. 添加 `@Component` 注解
|
||||
3. 定义 `topicPattern()` 返回匹配正则(必须包含一个捕获组提取设备标识)
|
||||
4. 实现 `handle(deviceIdentity, payload)` 方法
|
||||
|
||||
```java
|
||||
@Component
|
||||
public class MyNewHandler implements MqttTopicHandler {
|
||||
|
||||
private static final Pattern PATTERN = Pattern.compile("^/([^/]+)/publish/mytype$");
|
||||
|
||||
@Override
|
||||
public Pattern topicPattern() { return PATTERN; }
|
||||
|
||||
@Override
|
||||
public void handle(String deviceIdentity, String payload) {
|
||||
// 处理逻辑
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
> 无需修改 `MqttMessageDispatcher`,新 Handler 注册为 Bean 后自动发现。
|
||||
|
||||
### 新增下行命令类型
|
||||
|
||||
1. 在 `IDeviceCommandService` 接口添加方法签名
|
||||
2. 在 `DeviceCommandServiceImpl` 实现命令构造与下发
|
||||
3. 在 Controller 调用新方法
|
||||
|
||||
---
|
||||
|
||||
## 10. 设备在线状态检测
|
||||
|
||||
设备在线状态通过 Redis 缓存管理:
|
||||
|
||||
- **写入时机**: 设备注册、电量上报、ACK 确认时刷新
|
||||
- **缓存格式**: `{ "deviceNo": "01", "status": "1", "lastReportTime": "2026-06-25T14:30:00Z" }`
|
||||
- **TTL**: 默认 300 秒(5 分钟)
|
||||
- **离线判定**: 缓存过期 = 设备离线
|
||||
- **并发保护**: 使用分布式锁(`lock:mqtt:device:status:{deviceNo}`)防止并发写入
|
||||
Reference in New Issue
Block a user