feat：【IoT 物联网】新增设备信息查询功能，优化 MQTT 消息处理逻辑

yudao-module-iot/yudao-module-iot-biz/pom.xml

@@ -34,13 +34,6 @@
             <version>${revision}</version>
         </dependency>
 
-        <!-- IoT 协议模块 -->
-        <dependency>
-            <groupId>cn.iocoder.boot</groupId>
-            <artifactId>yudao-module-iot-protocol</artifactId>
-            <version>${revision}</version>
-        </dependency>
-
         <dependency>
             <groupId>cn.iocoder.boot</groupId>
             <artifactId>yudao-spring-boot-starter-biz-tenant</artifactId>

yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/api/device/IoTDeviceApiImpl.java

@@ -4,6 +4,9 @@ import cn.iocoder.yudao.framework.common.enums.RpcConstants;
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
 import cn.iocoder.yudao.module.iot.core.biz.IotDeviceCommonApi;
 import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoRespDTO;
+import cn.iocoder.yudao.module.iot.dal.dataobject.device.IotDeviceDO;
 import cn.iocoder.yudao.module.iot.service.device.IotDeviceService;
 import jakarta.annotation.Resource;
 import jakarta.annotation.security.PermitAll;
@@ -35,4 +38,25 @@ public class IoTDeviceApiImpl implements IotDeviceCommonApi {
         return success(deviceService.authDevice(authReqDTO));
     }
 
+    @Override
+    @PostMapping(RpcConstants.RPC_API_PREFIX + "/iot/device/info")
+    @PermitAll
+    public CommonResult<IotDeviceInfoRespDTO> getDeviceInfo(@RequestBody IotDeviceInfoReqDTO infoReqDTO) {
+        IotDeviceDO device = deviceService.getDeviceByProductKeyAndDeviceNameFromCache(
+                infoReqDTO.getProductKey(), infoReqDTO.getDeviceName());
+
+        if (device == null) {
+            return success(null);
+        }
+
+        IotDeviceInfoRespDTO respDTO = new IotDeviceInfoRespDTO();
+        respDTO.setDeviceId(device.getId());
+        respDTO.setProductKey(device.getProductKey());
+        respDTO.setDeviceName(device.getDeviceName());
+        respDTO.setDeviceKey(device.getDeviceKey());
+        respDTO.setTenantId(device.getTenantId());
+
+        return success(respDTO);
+    }
+
 }

yudao-module-iot/yudao-module-iot-core/src/main/java/cn/iocoder/yudao/module/iot/core/biz/IotDeviceCommonApi.java

@@ -2,6 +2,8 @@ package cn.iocoder.yudao.module.iot.core.biz;
 
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
 import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoRespDTO;
 
 /**
  * IoT 设备通用 API
@@ -10,6 +12,20 @@ import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
  */
 public interface IotDeviceCommonApi {
 
+    /**
+     * 设备认证
+     *
+     * @param authReqDTO 认证请求
+     * @return 认证结果
+     */
     CommonResult<Boolean> authDevice(IotDeviceAuthReqDTO authReqDTO);
 
+    /**
+     * 获取设备信息
+     *
+     * @param infoReqDTO 设备信息请求
+     * @return 设备信息
+     */
+    CommonResult<IotDeviceInfoRespDTO> getDeviceInfo(IotDeviceInfoReqDTO infoReqDTO);
+
 }

yudao-module-iot/yudao-module-iot-core/src/main/java/cn/iocoder/yudao/module/iot/core/biz/dto/IotDeviceInfoReqDTO.java

@@ -0,0 +1,26 @@
+package cn.iocoder.yudao.module.iot.core.biz.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import lombok.Data;
+
+/**
+ * IoT 设备信息查询 Request DTO
+ *
+ * @author 芋道源码
+ */
+@Data
+public class IotDeviceInfoReqDTO {
+
+    /**
+     * 产品标识
+     */
+    @NotBlank(message = "产品标识不能为空")
+    private String productKey;
+
+    /**
+     * 设备名称
+     */
+    @NotBlank(message = "设备名称不能为空")
+    private String deviceName;
+
+}

yudao-module-iot/yudao-module-iot-core/src/main/java/cn/iocoder/yudao/module/iot/core/biz/dto/IotDeviceInfoRespDTO.java

@@ -0,0 +1,38 @@
+package cn.iocoder.yudao.module.iot.core.biz.dto;
+
+import lombok.Data;
+
+/**
+ * IoT 设备信息 Response DTO
+ *
+ * @author 芋道源码
+ */
+@Data
+public class IotDeviceInfoRespDTO {
+
+    /**
+     * 设备编号
+     */
+    private Long deviceId;
+
+    /**
+     * 产品标识
+     */
+    private String productKey;
+
+    /**
+     * 设备名称
+     */
+    private String deviceName;
+
+    /**
+     * 设备密钥
+     */
+    private String deviceKey;
+
+    /**
+     * 租户编号
+     */
+    private Long tenantId;
+
+}

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/mqtt/IotMqttDownstreamSubscriber.java

@@ -1,14 +1,14 @@
 package cn.iocoder.yudao.module.iot.gateway.protocol.mqtt;
 
 import cn.hutool.json.JSONObject;
-import cn.hutool.json.JSONUtil;
-import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
 import cn.iocoder.yudao.module.iot.core.messagebus.core.IotMessageBus;
 import cn.iocoder.yudao.module.iot.core.messagebus.core.IotMessageSubscriber;
 import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
 import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
 import cn.iocoder.yudao.module.iot.gateway.enums.IotDeviceTopicEnum;
+import cn.iocoder.yudao.module.iot.gateway.service.device.IotDeviceCacheService;
 import jakarta.annotation.PostConstruct;
+import jakarta.annotation.Resource;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
@@ -24,6 +24,9 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
     private final IotMqttUpstreamProtocol protocol;
     private final IotMessageBus messageBus;
 
+    @Resource
+    private IotDeviceCacheService deviceCacheService;
+
     @PostConstruct
     public void init() {
         messageBus.register(this);
@@ -45,24 +48,24 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
         log.info("[onMessage][接收到下行消息：{}]", message);
 
         try {
-            // 根据消息类型处理不同的下行消息
+            // 根据消息方法处理不同的下行消息
-            String messageType = message.getType();
+            String method = message.getMethod();
-            switch (messageType) {
+            if (method == null) {
-                case "property":
+                log.warn("[onMessage][消息方法为空]");
-                    handlePropertyMessage(message);
+                return;
-                    break;
+            }
-                case "service":
+
-                    handleServiceMessage(message);
+            if (method.startsWith("thing.service.property.")) {
-                    break;
+                handlePropertyMessage(message);
-                case "config":
+            } else if (method.startsWith("thing.service.") && !method.contains("property") && !method.contains("config")
-                    handleConfigMessage(message);
+                    && !method.contains("ota")) {
-                    break;
+                handleServiceMessage(message);
-                case "ota":
+            } else if (method.startsWith("thing.service.config.")) {
-                    handleOtaMessage(message);
+                handleConfigMessage(message);
-                    break;
+            } else if (method.startsWith("thing.service.ota.")) {
-                default:
+                handleOtaMessage(message);
-                    log.warn("[onMessage][未知的消息类型：{}]", messageType);
+            } else {
-                    break;
+                log.warn("[onMessage][未知的消息方法：{}]", method);
             }
         } catch (Exception e) {
             log.error("[onMessage][处理下行消息失败：{}]", message, e);
@@ -75,24 +78,32 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
      * @param message 设备消息
      */
     private void handlePropertyMessage(IotDeviceMessage message) {
-        String identifier = message.getIdentifier();
+        String method = message.getMethod();
-        String productKey = message.getProductKey();
-        String deviceName = message.getDeviceName();
 
-        if ("set".equals(identifier)) {
+        // 通过 deviceId 获取设备信息
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfoById(message.getDeviceId());
+        if (deviceInfo == null) {
+            log.warn("[handlePropertyMessage][设备信息不存在][deviceId: {}]", message.getDeviceId());
+            return;
+        }
+
+        String productKey = deviceInfo.getProductKey();
+        String deviceName = deviceInfo.getDeviceName();
+
+        if ("thing.service.property.set".equals(method)) {
             // 属性设置
             String topic = IotDeviceTopicEnum.buildPropertySetTopic(productKey, deviceName);
-            JSONObject payload = buildDownstreamPayload(message, "thing.service.property.set");
+            JSONObject payload = buildDownstreamPayload(message, method);
             protocol.publishMessage(topic, payload.toString());
             log.info("[handlePropertyMessage][发送属性设置消息][topic: {}]", topic);
-        } else if ("get".equals(identifier)) {
+        } else if ("thing.service.property.get".equals(method)) {
             // 属性获取
             String topic = IotDeviceTopicEnum.buildPropertyGetTopic(productKey, deviceName);
-            JSONObject payload = buildDownstreamPayload(message, "thing.service.property.get");
+            JSONObject payload = buildDownstreamPayload(message, method);
             protocol.publishMessage(topic, payload.toString());
             log.info("[handlePropertyMessage][发送属性获取消息][topic: {}]", topic);
         } else {
-            log.warn("[handlePropertyMessage][未知的属性操作：{}]", identifier);
+            log.warn("[handlePropertyMessage][未知的属性操作：{}]", method);
         }
     }
 
@@ -102,12 +113,23 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
      * @param message 设备消息
      */
     private void handleServiceMessage(IotDeviceMessage message) {
-        String identifier = message.getIdentifier();
+        String method = message.getMethod();
-        String productKey = message.getProductKey();
-        String deviceName = message.getDeviceName();
 
-        String topic = IotDeviceTopicEnum.buildServiceTopic(productKey, deviceName, identifier);
+        // 通过 deviceId 获取设备信息
-        JSONObject payload = buildDownstreamPayload(message, "thing.service." + identifier);
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfoById(message.getDeviceId());
+        if (deviceInfo == null) {
+            log.warn("[handleServiceMessage][设备信息不存在][deviceId: {}]", message.getDeviceId());
+            return;
+        }
+
+        String productKey = deviceInfo.getProductKey();
+        String deviceName = deviceInfo.getDeviceName();
+
+        // 从方法中提取服务标识符
+        String serviceIdentifier = method.substring("thing.service.".length());
+
+        String topic = IotDeviceTopicEnum.buildServiceTopic(productKey, deviceName, serviceIdentifier);
+        JSONObject payload = buildDownstreamPayload(message, method);
         protocol.publishMessage(topic, payload.toString());
         log.info("[handleServiceMessage][发送服务调用消息][topic: {}]", topic);
     }
@@ -118,11 +140,18 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
      * @param message 设备消息
      */
     private void handleConfigMessage(IotDeviceMessage message) {
-        String productKey = message.getProductKey();
+        // 通过 deviceId 获取设备信息
-        String deviceName = message.getDeviceName();
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfoById(message.getDeviceId());
+        if (deviceInfo == null) {
+            log.warn("[handleConfigMessage][设备信息不存在][deviceId: {}]", message.getDeviceId());
+            return;
+        }
+
+        String productKey = deviceInfo.getProductKey();
+        String deviceName = deviceInfo.getDeviceName();
 
         String topic = IotDeviceTopicEnum.buildConfigSetTopic(productKey, deviceName);
-        JSONObject payload = buildDownstreamPayload(message, "thing.service.config.set");
+        JSONObject payload = buildDownstreamPayload(message, message.getMethod());
         protocol.publishMessage(topic, payload.toString());
         log.info("[handleConfigMessage][发送配置设置消息][topic: {}]", topic);
     }
@@ -133,11 +162,18 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
      * @param message 设备消息
      */
     private void handleOtaMessage(IotDeviceMessage message) {
-        String productKey = message.getProductKey();
+        // 通过 deviceId 获取设备信息
-        String deviceName = message.getDeviceName();
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfoById(message.getDeviceId());
+        if (deviceInfo == null) {
+            log.warn("[handleOtaMessage][设备信息不存在][deviceId: {}]", message.getDeviceId());
+            return;
+        }
+
+        String productKey = deviceInfo.getProductKey();
+        String deviceName = deviceInfo.getDeviceName();
 
         String topic = IotDeviceTopicEnum.buildOtaUpgradeTopic(productKey, deviceName);
-        JSONObject payload = buildDownstreamPayload(message, "thing.service.ota.upgrade");
+        JSONObject payload = buildDownstreamPayload(message, message.getMethod());
         protocol.publishMessage(topic, payload.toString());
         log.info("[handleOtaMessage][发送 OTA 升级消息][topic: {}]", topic);
     }
@@ -151,7 +187,7 @@ public class IotMqttDownstreamSubscriber implements IotMessageSubscriber<IotDevi
      */
     private JSONObject buildDownstreamPayload(IotDeviceMessage message, String method) {
         JSONObject payload = new JSONObject();
-        payload.set("id", message.getMessageId());
+        payload.set("id", message.getId()); // 使用正确的消息ID字段
         payload.set("version", "1.0");
         payload.set("method", method);
         payload.set("params", message.getData());

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/mqtt/router/IotMqttAuthRouter.java

@@ -10,6 +10,7 @@ import cn.iocoder.yudao.module.iot.core.mq.producer.IotDeviceMessageProducer;
 import cn.iocoder.yudao.module.iot.core.util.IotDeviceAuthUtils;
 import cn.iocoder.yudao.module.iot.gateway.protocol.mqtt.IotMqttUpstreamProtocol;
 import cn.iocoder.yudao.module.iot.gateway.service.auth.IotDeviceTokenService;
+import cn.iocoder.yudao.module.iot.gateway.service.message.IotDeviceMessageService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
@@ -28,12 +29,14 @@ public class IotMqttAuthRouter {
     private final IotDeviceMessageProducer deviceMessageProducer;
     private final IotDeviceTokenService deviceTokenService;
     private final IotDeviceCommonApi deviceCommonApi;
+    private final IotDeviceMessageService deviceMessageService;
 
     public IotMqttAuthRouter(IotMqttUpstreamProtocol protocol) {
         this.protocol = protocol;
         this.deviceMessageProducer = SpringUtil.getBean(IotDeviceMessageProducer.class);
         this.deviceTokenService = SpringUtil.getBean(IotDeviceTokenService.class);
         this.deviceCommonApi = SpringUtil.getBean(IotDeviceCommonApi.class);
+        this.deviceMessageService = SpringUtil.getBean(IotDeviceMessageService.class);
     }
 
     /**
@@ -125,15 +128,15 @@ public class IotMqttAuthRouter {
         }
 
         try {
-            // 发送设备状态消息
+            // 使用 IotDeviceMessageService 构建设备状态消息
-            IotDeviceMessage message = IotDeviceMessage.of(
+            IotDeviceMessage message;
-                    deviceInfo.getProductKey(), deviceInfo.getDeviceName(), protocol.getServerId());
-
             if (online) {
-                message = message.ofStateOnline();
+                message = deviceMessageService.buildDeviceMessageOfStateOnline(
+                        deviceInfo.getProductKey(), deviceInfo.getDeviceName(), protocol.getServerId());
                 log.info("[handleDeviceStateChange][发送设备上线消息成功][username: {}]", username);
             } else {
-                message = message.ofStateOffline();
+                message = deviceMessageService.buildDeviceMessageOfStateOffline(
+                        deviceInfo.getProductKey(), deviceInfo.getDeviceName(), protocol.getServerId());
                 log.info("[handleDeviceStateChange][发送设备下线消息成功][username: {}]", username);
             }
 

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/mqtt/router/IotMqttEventHandler.java

@@ -6,10 +6,11 @@ import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
 import cn.iocoder.yudao.module.iot.core.mq.producer.IotDeviceMessageProducer;
 import cn.iocoder.yudao.module.iot.gateway.enums.IotDeviceTopicEnum;
 import cn.iocoder.yudao.module.iot.gateway.protocol.mqtt.IotMqttUpstreamProtocol;
+import cn.iocoder.yudao.module.iot.gateway.service.message.IotDeviceMessageService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
-import java.util.Map;
+import java.nio.charset.StandardCharsets;
 
 /**
  * IoT 网关 MQTT 事件处理器
@@ -24,6 +25,7 @@ public class IotMqttEventHandler extends IotMqttAbstractHandler {
 
     private final IotMqttUpstreamProtocol protocol;
     private final IotDeviceMessageProducer deviceMessageProducer;
+    private final IotDeviceMessageService deviceMessageService;
 
     @Override
     public void handle(String topic, String payload) {
@@ -31,7 +33,6 @@ public class IotMqttEventHandler extends IotMqttAbstractHandler {
             log.info("[handle][接收到设备事件上报][topic: {}]", topic);
 
             // 解析消息内容
-            JSONObject jsonObject = JSONUtil.parseObj(payload);
             String[] topicParts = parseTopic(topic);
             if (topicParts == null) {
                 return;
@@ -45,12 +46,10 @@ public class IotMqttEventHandler extends IotMqttAbstractHandler {
                 return;
             }
 
-            Map<String, Object> eventData = parseEventDataFromPayload(jsonObject);
+            // 使用 IotDeviceMessageService 解码消息
-            IotDeviceMessage message = IotDeviceMessage.of(productKey, deviceName, protocol.getServerId());
+            byte[] messageBytes = payload.getBytes(StandardCharsets.UTF_8);
-            // 设置事件消息类型和标识符
+            IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(
-            message.setType("event");
+                    messageBytes, productKey, deviceName, protocol.getServerId());
-            message.setIdentifier(eventIdentifier);
-            message.setData(eventData);
 
             // 发送消息
             deviceMessageProducer.sendDeviceMessage(message);
@@ -58,7 +57,7 @@ public class IotMqttEventHandler extends IotMqttAbstractHandler {
 
             // 发送响应消息
             String method = "thing.event." + eventIdentifier + ".post";
-            sendResponse(topic, jsonObject, method);
+            sendResponse(topic, JSONUtil.parseObj(payload), method);
         } catch (Exception e) {
             log.error("[handle][处理设备事件上报失败][topic: {}][payload: {}]", topic, payload, e);
         }
@@ -80,21 +79,6 @@ public class IotMqttEventHandler extends IotMqttAbstractHandler {
         }
     }
 
-    /**
-     * 从消息载荷解析事件数据
-     *
-     * @param jsonObject 消息 JSON 对象
-     * @return 事件数据映射
-     */
-    private Map<String, Object> parseEventDataFromPayload(JSONObject jsonObject) {
-        JSONObject params = jsonObject.getJSONObject("params");
-        if (params == null) {
-            log.warn("[parseEventDataFromPayload][消息格式不正确，缺少 params 字段][jsonObject: {}]", jsonObject);
-            return Map.of();
-        }
-        return params;
-    }
-
     /**
      * 发送响应消息
      *
@@ -103,18 +87,22 @@ public class IotMqttEventHandler extends IotMqttAbstractHandler {
      * @param method     响应方法
      */
     private void sendResponse(String topic, JSONObject jsonObject, String method) {
-        String replyTopic = IotDeviceTopicEnum.getReplyTopic(topic);
+        try {
+            String replyTopic = IotDeviceTopicEnum.getReplyTopic(topic);
 
-        // 构建响应消息
+            // 构建响应消息
-        JSONObject response = new JSONObject();
+            JSONObject response = new JSONObject();
-        response.set("id", jsonObject.getStr("id"));
+            response.set("id", jsonObject.getStr("id"));
-        response.set("code", 200);
+            response.set("code", 200);
-        response.set("method", method);
+            response.set("method", method);
-        response.set("data", new JSONObject());
+            response.set("data", new JSONObject());
 
-        // 发送响应
+            // 发送响应
-        protocol.publishMessage(replyTopic, response.toString());
+            protocol.publishMessage(replyTopic, response.toString());
-        log.debug("[sendResponse][发送响应消息][topic: {}]", replyTopic);
+            log.debug("[sendResponse][发送响应消息成功][topic: {}]", replyTopic);
+        } catch (Exception e) {
+            log.error("[sendResponse][发送响应消息失败][topic: {}]", topic, e);
+        }
     }
 
 }

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/mqtt/router/IotMqttPropertyHandler.java

@@ -6,10 +6,11 @@ import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
 import cn.iocoder.yudao.module.iot.core.mq.producer.IotDeviceMessageProducer;
 import cn.iocoder.yudao.module.iot.gateway.enums.IotDeviceTopicEnum;
 import cn.iocoder.yudao.module.iot.gateway.protocol.mqtt.IotMqttUpstreamProtocol;
+import cn.iocoder.yudao.module.iot.gateway.service.message.IotDeviceMessageService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
-import java.util.Map;
+import java.nio.charset.StandardCharsets;
 
 /**
  * IoT 网关 MQTT 属性处理器
@@ -24,6 +25,7 @@ public class IotMqttPropertyHandler extends IotMqttAbstractHandler {
 
     private final IotMqttUpstreamProtocol protocol;
     private final IotDeviceMessageProducer deviceMessageProducer;
+    private final IotDeviceMessageService deviceMessageService;
 
     @Override
     public void handle(String topic, String payload) {
@@ -51,27 +53,26 @@ public class IotMqttPropertyHandler extends IotMqttAbstractHandler {
         try {
             log.info("[handlePropertyPost][接收到设备属性上报][topic: {}]", topic);
 
-            // 解析消息内容
+            // 解析主题获取设备信息
-            JSONObject jsonObject = JSONUtil.parseObj(payload);
             String[] topicParts = parseTopic(topic);
             if (topicParts == null) {
                 return;
             }
 
-            // 构建设备消息
             String productKey = topicParts[2];
             String deviceName = topicParts[3];
-            Map<String, Object> properties = parsePropertiesFromPayload(jsonObject);
 
-            IotDeviceMessage message = IotDeviceMessage.of(productKey, deviceName, protocol.getServerId())
+            // 使用 IotDeviceMessageService 解码消息
-                    .ofPropertyReport(properties);
+            byte[] messageBytes = payload.getBytes(StandardCharsets.UTF_8);
+            IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(
+                    messageBytes, productKey, deviceName, protocol.getServerId());
 
             // 发送消息
             deviceMessageProducer.sendDeviceMessage(message);
             log.info("[handlePropertyPost][处理设备属性上报成功][topic: {}]", topic);
 
             // 发送响应消息
-            sendResponse(topic, jsonObject, "thing.event.property.post");
+            sendResponse(topic, JSONUtil.parseObj(payload), "thing.event.property.post");
         } catch (Exception e) {
             log.error("[handlePropertyPost][处理设备属性上报失败][topic: {}][payload: {}]", topic, payload, e);
         }
@@ -86,7 +87,24 @@ public class IotMqttPropertyHandler extends IotMqttAbstractHandler {
     private void handlePropertySetReply(String topic, String payload) {
         try {
             log.info("[handlePropertySetReply][接收到属性设置响应][topic: {}]", topic);
-            // TODO: 处理属性设置响应逻辑
+
+            // 解析主题获取设备信息
+            String[] topicParts = parseTopic(topic);
+            if (topicParts == null) {
+                return;
+            }
+
+            String productKey = topicParts[2];
+            String deviceName = topicParts[3];
+
+            // 使用 IotDeviceMessageService 解码消息
+            byte[] messageBytes = payload.getBytes(StandardCharsets.UTF_8);
+            IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(
+                    messageBytes, productKey, deviceName, protocol.getServerId());
+
+            // 发送消息
+            deviceMessageProducer.sendDeviceMessage(message);
+            log.info("[handlePropertySetReply][处理属性设置响应成功][topic: {}]", topic);
         } catch (Exception e) {
             log.error("[handlePropertySetReply][处理属性设置响应失败][topic: {}][payload: {}]", topic, payload, e);
         }
@@ -101,27 +119,29 @@ public class IotMqttPropertyHandler extends IotMqttAbstractHandler {
     private void handlePropertyGetReply(String topic, String payload) {
         try {
             log.info("[handlePropertyGetReply][接收到属性获取响应][topic: {}]", topic);
-            // TODO: 处理属性获取响应逻辑
+
+            // 解析主题获取设备信息
+            String[] topicParts = parseTopic(topic);
+            if (topicParts == null) {
+                return;
+            }
+
+            String productKey = topicParts[2];
+            String deviceName = topicParts[3];
+
+            // 使用 IotDeviceMessageService 解码消息
+            byte[] messageBytes = payload.getBytes(StandardCharsets.UTF_8);
+            IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(
+                    messageBytes, productKey, deviceName, protocol.getServerId());
+
+            // 发送消息
+            deviceMessageProducer.sendDeviceMessage(message);
+            log.info("[handlePropertyGetReply][处理属性获取响应成功][topic: {}]", topic);
         } catch (Exception e) {
             log.error("[handlePropertyGetReply][处理属性获取响应失败][topic: {}][payload: {}]", topic, payload, e);
         }
     }
 
-    /**
-     * 从消息载荷解析属性
-     *
-     * @param jsonObject 消息 JSON 对象
-     * @return 属性映射
-     */
-    private Map<String, Object> parsePropertiesFromPayload(JSONObject jsonObject) {
-        JSONObject params = jsonObject.getJSONObject("params");
-        if (params == null) {
-            log.warn("[parsePropertiesFromPayload][消息格式不正确，缺少 params 字段][jsonObject: {}]", jsonObject);
-            return Map.of();
-        }
-        return params;
-    }
-
     /**
      * 发送响应消息
      *
@@ -130,18 +150,22 @@ public class IotMqttPropertyHandler extends IotMqttAbstractHandler {
      * @param method     响应方法
      */
     private void sendResponse(String topic, JSONObject jsonObject, String method) {
-        String replyTopic = IotDeviceTopicEnum.getReplyTopic(topic);
+        try {
+            String replyTopic = IotDeviceTopicEnum.getReplyTopic(topic);
 
-        // 构建响应消息
+            // 构建响应消息
-        JSONObject response = new JSONObject();
+            JSONObject response = new JSONObject();
-        response.set("id", jsonObject.getStr("id"));
+            response.set("id", jsonObject.getStr("id"));
-        response.set("code", 200);
+            response.set("code", 200);
-        response.set("method", method);
+            response.set("method", method);
-        response.set("data", new JSONObject());
+            response.set("data", new JSONObject());
 
-        // 发送响应
+            // 发送响应
-        protocol.publishMessage(replyTopic, response.toString());
+            protocol.publishMessage(replyTopic, response.toString());
-        log.debug("[sendResponse][发送响应消息][topic: {}]", replyTopic);
+            log.debug("[sendResponse][发送响应消息成功][topic: {}]", replyTopic);
+        } catch (Exception e) {
+            log.error("[sendResponse][发送响应消息失败][topic: {}]", topic, e);
+        }
     }
 
 }

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/mqtt/router/IotMqttServiceHandler.java

@@ -6,10 +6,11 @@ import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
 import cn.iocoder.yudao.module.iot.core.mq.producer.IotDeviceMessageProducer;
 import cn.iocoder.yudao.module.iot.gateway.enums.IotDeviceTopicEnum;
 import cn.iocoder.yudao.module.iot.gateway.protocol.mqtt.IotMqttUpstreamProtocol;
+import cn.iocoder.yudao.module.iot.gateway.service.message.IotDeviceMessageService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
-import java.util.Map;
+import java.nio.charset.StandardCharsets;
 
 /**
  * IoT 网关 MQTT 服务处理器
@@ -24,6 +25,7 @@ public class IotMqttServiceHandler extends IotMqttAbstractHandler {
 
     private final IotMqttUpstreamProtocol protocol;
     private final IotDeviceMessageProducer deviceMessageProducer;
+    private final IotDeviceMessageService deviceMessageService;
 
     @Override
     public void handle(String topic, String payload) {
@@ -31,7 +33,6 @@ public class IotMqttServiceHandler extends IotMqttAbstractHandler {
             log.info("[handle][接收到设备服务调用响应][topic: {}]", topic);
 
             // 解析消息内容
-            JSONObject jsonObject = JSONUtil.parseObj(payload);
             String[] topicParts = parseTopic(topic);
             if (topicParts == null) {
                 return;
@@ -45,12 +46,10 @@ public class IotMqttServiceHandler extends IotMqttAbstractHandler {
                 return;
             }
 
-            Map<String, Object> serviceData = parseServiceDataFromPayload(jsonObject);
+            // 使用 IotDeviceMessageService 解码消息
-            IotDeviceMessage message = IotDeviceMessage.of(productKey, deviceName, protocol.getServerId());
+            byte[] messageBytes = payload.getBytes(StandardCharsets.UTF_8);
-            // 设置服务消息类型和标识符
+            IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(
-            message.setType("service");
+                    messageBytes, productKey, deviceName, protocol.getServerId());
-            message.setIdentifier(serviceIdentifier);
-            message.setData(serviceData);
 
             // 发送消息
             deviceMessageProducer.sendDeviceMessage(message);
@@ -58,7 +57,7 @@ public class IotMqttServiceHandler extends IotMqttAbstractHandler {
 
             // 发送响应消息
             String method = "thing.service." + serviceIdentifier;
-            sendResponse(topic, jsonObject, method);
+            sendResponse(topic, JSONUtil.parseObj(payload), method);
         } catch (Exception e) {
             log.error("[handle][处理设备服务调用响应失败][topic: {}][payload: {}]", topic, payload, e);
         }
@@ -81,21 +80,6 @@ public class IotMqttServiceHandler extends IotMqttAbstractHandler {
         }
     }
 
-    /**
-     * 从消息载荷解析服务数据
-     *
-     * @param jsonObject 消息 JSON 对象
-     * @return 服务数据映射
-     */
-    private Map<String, Object> parseServiceDataFromPayload(JSONObject jsonObject) {
-        JSONObject params = jsonObject.getJSONObject("params");
-        if (params == null) {
-            log.warn("[parseServiceDataFromPayload][消息格式不正确，缺少 params 字段][jsonObject: {}]", jsonObject);
-            return Map.of();
-        }
-        return params;
-    }
-
     /**
      * 发送响应消息
      *
@@ -104,18 +88,22 @@ public class IotMqttServiceHandler extends IotMqttAbstractHandler {
      * @param method     响应方法
      */
     private void sendResponse(String topic, JSONObject jsonObject, String method) {
-        String replyTopic = IotDeviceTopicEnum.getReplyTopic(topic);
+        try {
+            String replyTopic = IotDeviceTopicEnum.getReplyTopic(topic);
 
-        // 构建响应消息
+            // 构建响应消息
-        JSONObject response = new JSONObject();
+            JSONObject response = new JSONObject();
-        response.set("id", jsonObject.getStr("id"));
+            response.set("id", jsonObject.getStr("id"));
-        response.set("code", 200);
+            response.set("code", 200);
-        response.set("method", method);
+            response.set("method", method);
-        response.set("data", new JSONObject());
+            response.set("data", new JSONObject());
 
-        // 发送响应
+            // 发送响应
-        protocol.publishMessage(replyTopic, response.toString());
+            protocol.publishMessage(replyTopic, response.toString());
-        log.debug("[sendResponse][发送响应消息][topic: {}]", replyTopic);
+            log.debug("[sendResponse][发送响应消息成功][topic: {}]", replyTopic);
+        } catch (Exception e) {
+            log.error("[sendResponse][发送响应消息失败][topic: {}]", topic, e);
+        }
     }
 
 }

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/mqtt/router/IotMqttUpstreamRouter.java

@@ -5,6 +5,7 @@ import cn.hutool.extra.spring.SpringUtil;
 import cn.iocoder.yudao.module.iot.core.mq.producer.IotDeviceMessageProducer;
 import cn.iocoder.yudao.module.iot.gateway.enums.IotDeviceTopicEnum;
 import cn.iocoder.yudao.module.iot.gateway.protocol.mqtt.IotMqttUpstreamProtocol;
+import cn.iocoder.yudao.module.iot.gateway.service.message.IotDeviceMessageService;
 import io.vertx.mqtt.messages.MqttPublishMessage;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -22,6 +23,7 @@ public class IotMqttUpstreamRouter {
 
     private final IotMqttUpstreamProtocol protocol;
     private final IotDeviceMessageProducer deviceMessageProducer;
+    private final IotDeviceMessageService deviceMessageService;
 
     // 处理器实例
     private IotMqttPropertyHandler propertyHandler;
@@ -31,10 +33,11 @@ public class IotMqttUpstreamRouter {
     public IotMqttUpstreamRouter(IotMqttUpstreamProtocol protocol) {
         this.protocol = protocol;
         this.deviceMessageProducer = SpringUtil.getBean(IotDeviceMessageProducer.class);
+        this.deviceMessageService = SpringUtil.getBean(IotDeviceMessageService.class);
         // 初始化处理器
-        this.propertyHandler = new IotMqttPropertyHandler(protocol, deviceMessageProducer);
+        this.propertyHandler = new IotMqttPropertyHandler(protocol, deviceMessageProducer, deviceMessageService);
-        this.eventHandler = new IotMqttEventHandler(protocol, deviceMessageProducer);
+        this.eventHandler = new IotMqttEventHandler(protocol, deviceMessageProducer, deviceMessageService);
-        this.serviceHandler = new IotMqttServiceHandler(protocol, deviceMessageProducer);
+        this.serviceHandler = new IotMqttServiceHandler(protocol, deviceMessageProducer, deviceMessageService);
     }
 
     /**

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/service/device/IotDeviceCacheService.java

@@ -0,0 +1,75 @@
+package cn.iocoder.yudao.module.iot.gateway.service.device;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * IoT 设备缓存 Service 接口
+ *
+ * @author 芋道源码
+ */
+public interface IotDeviceCacheService {
+
+    /**
+     * 设备信息
+     */
+    @Data
+    @AllArgsConstructor
+    @NoArgsConstructor
+    class DeviceInfo {
+        /**
+         * 设备编号
+         */
+        private Long deviceId;
+        /**
+         * 产品标识
+         */
+        private String productKey;
+        /**
+         * 设备名称
+         */
+        private String deviceName;
+        /**
+         * 设备密钥
+         */
+        private String deviceKey;
+        /**
+         * 租户编号
+         */
+        private Long tenantId;
+    }
+
+    /**
+     * 根据 productKey 和 deviceName 获取设备信息
+     *
+     * @param productKey 产品标识
+     * @param deviceName 设备名称
+     * @return 设备信息，如果不存在返回 null
+     */
+    DeviceInfo getDeviceInfo(String productKey, String deviceName);
+
+    /**
+     * 根据 deviceId 获取设备信息
+     *
+     * @param deviceId 设备编号
+     * @return 设备信息，如果不存在返回 null
+     */
+    DeviceInfo getDeviceInfoById(Long deviceId);
+
+    /**
+     * 清除设备缓存
+     *
+     * @param deviceId 设备编号
+     */
+    void evictDeviceCache(Long deviceId);
+
+    /**
+     * 清除设备缓存
+     *
+     * @param productKey 产品标识
+     * @param deviceName 设备名称
+     */
+    void evictDeviceCache(String productKey, String deviceName);
+
+}

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/service/device/IotDeviceCacheServiceImpl.java

@@ -0,0 +1,241 @@
+package cn.iocoder.yudao.module.iot.gateway.service.device;
+
+import cn.hutool.core.util.StrUtil;
+import cn.hutool.extra.spring.SpringUtil;
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.module.iot.core.biz.IotDeviceCommonApi;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoRespDTO;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * IoT 设备缓存 Service 实现类
+ * <p>
+ * 使用本地缓存 + 远程 API 的方式获取设备信息，提高性能并避免敏感信息传输
+ *
+ * @author 芋道源码
+ */
+@Service
+@Slf4j
+public class IotDeviceCacheServiceImpl implements IotDeviceCacheService {
+
+    /**
+     * 设备信息本地缓存
+     * Key: deviceId
+     * Value: DeviceInfo
+     */
+    private final ConcurrentHashMap<Long, DeviceInfo> deviceIdCache = new ConcurrentHashMap<>();
+
+    /**
+     * 设备名称到设备ID的映射缓存
+     * Key: productKey:deviceName
+     * Value: deviceId
+     */
+    private final ConcurrentHashMap<String, Long> deviceNameCache = new ConcurrentHashMap<>();
+
+    /**
+     * 锁对象，防止并发请求同一设备信息
+     */
+    private final ConcurrentHashMap<String, ReentrantLock> lockMap = new ConcurrentHashMap<>();
+
+    @Override
+    public DeviceInfo getDeviceInfo(String productKey, String deviceName) {
+        if (StrUtil.isEmpty(productKey) || StrUtil.isEmpty(deviceName)) {
+            log.warn("[getDeviceInfo][参数为空][productKey: {}][deviceName: {}]", productKey, deviceName);
+            return null;
+        }
+
+        String cacheKey = buildDeviceNameCacheKey(productKey, deviceName);
+
+        // 1. 先从缓存获取 deviceId
+        Long deviceId = deviceNameCache.get(cacheKey);
+        if (deviceId != null) {
+            DeviceInfo deviceInfo = deviceIdCache.get(deviceId);
+            if (deviceInfo != null) {
+                log.debug("[getDeviceInfo][缓存命中][productKey: {}][deviceName: {}][deviceId: {}]",
+                        productKey, deviceName, deviceId);
+                return deviceInfo;
+            }
+        }
+
+        // 2. 缓存未命中，从远程 API 获取
+        return loadDeviceInfoFromApi(productKey, deviceName, cacheKey);
+    }
+
+    @Override
+    public DeviceInfo getDeviceInfoById(Long deviceId) {
+        if (deviceId == null) {
+            log.warn("[getDeviceInfoById][deviceId 为空]");
+            return null;
+        }
+
+        // 1. 先从缓存获取
+        DeviceInfo deviceInfo = deviceIdCache.get(deviceId);
+        if (deviceInfo != null) {
+            log.debug("[getDeviceInfoById][缓存命中][deviceId: {}]", deviceId);
+            return deviceInfo;
+        }
+
+        // 2. 缓存未命中，从远程 API 获取
+        return loadDeviceInfoByIdFromApi(deviceId);
+    }
+
+    @Override
+    public void evictDeviceCache(Long deviceId) {
+        if (deviceId == null) {
+            return;
+        }
+
+        DeviceInfo deviceInfo = deviceIdCache.remove(deviceId);
+        if (deviceInfo != null) {
+            String cacheKey = buildDeviceNameCacheKey(deviceInfo.getProductKey(), deviceInfo.getDeviceName());
+            deviceNameCache.remove(cacheKey);
+            log.info("[evictDeviceCache][清除设备缓存][deviceId: {}]", deviceId);
+        }
+    }
+
+    @Override
+    public void evictDeviceCache(String productKey, String deviceName) {
+        if (StrUtil.isEmpty(productKey) || StrUtil.isEmpty(deviceName)) {
+            return;
+        }
+
+        String cacheKey = buildDeviceNameCacheKey(productKey, deviceName);
+        Long deviceId = deviceNameCache.remove(cacheKey);
+        if (deviceId != null) {
+            deviceIdCache.remove(deviceId);
+            log.info("[evictDeviceCache][清除设备缓存][productKey: {}][deviceName: {}]", productKey, deviceName);
+        }
+    }
+
+    /**
+     * 从远程 API 加载设备信息
+     *
+     * @param productKey 产品标识
+     * @param deviceName 设备名称
+     * @param cacheKey   缓存键
+     * @return 设备信息
+     */
+    private DeviceInfo loadDeviceInfoFromApi(String productKey, String deviceName, String cacheKey) {
+        // 使用锁防止并发请求同一设备信息
+        ReentrantLock lock = lockMap.computeIfAbsent(cacheKey, k -> new ReentrantLock());
+        lock.lock();
+        try {
+            // 双重检查，防止重复请求
+            Long deviceId = deviceNameCache.get(cacheKey);
+            if (deviceId != null) {
+                DeviceInfo deviceInfo = deviceIdCache.get(deviceId);
+                if (deviceInfo != null) {
+                    return deviceInfo;
+                }
+            }
+
+            log.info("[loadDeviceInfoFromApi][从远程API获取设备信息][productKey: {}][deviceName: {}]",
+                    productKey, deviceName);
+
+            try {
+                // 调用远程 API 获取设备信息
+                IotDeviceCommonApi deviceCommonApi = SpringUtil.getBean(IotDeviceCommonApi.class);
+                IotDeviceInfoReqDTO reqDTO = new IotDeviceInfoReqDTO();
+                reqDTO.setProductKey(productKey);
+                reqDTO.setDeviceName(deviceName);
+
+                CommonResult<IotDeviceInfoRespDTO> result = deviceCommonApi.getDeviceInfo(reqDTO);
+
+                if (result == null || !result.isSuccess() || result.getData() == null) {
+                    log.warn("[loadDeviceInfoFromApi][远程API调用失败][productKey: {}][deviceName: {}][result: {}]",
+                            productKey, deviceName, result);
+                    return null;
+                }
+
+                IotDeviceInfoRespDTO respDTO = result.getData();
+                DeviceInfo deviceInfo = new DeviceInfo(
+                        respDTO.getDeviceId(),
+                        respDTO.getProductKey(),
+                        respDTO.getDeviceName(),
+                        respDTO.getDeviceKey(),
+                        respDTO.getTenantId());
+
+                // 缓存设备信息
+                cacheDeviceInfo(deviceInfo, cacheKey);
+
+                log.info("[loadDeviceInfoFromApi][设备信息获取成功并已缓存][deviceInfo: {}]", deviceInfo);
+                return deviceInfo;
+
+            } catch (Exception e) {
+                log.error("[loadDeviceInfoFromApi][远程API调用异常][productKey: {}][deviceName: {}]",
+                        productKey, deviceName, e);
+                return null;
+            }
+        } finally {
+            lock.unlock();
+            // 清理锁对象，避免内存泄漏
+            if (lockMap.size() > 1000) { // 简单的清理策略
+                lockMap.entrySet().removeIf(entry -> !entry.getValue().hasQueuedThreads());
+            }
+        }
+    }
+
+    /**
+     * 从远程 API 根据 deviceId 加载设备信息
+     *
+     * @param deviceId 设备编号
+     * @return 设备信息
+     */
+    private DeviceInfo loadDeviceInfoByIdFromApi(Long deviceId) {
+        String lockKey = "deviceId:" + deviceId;
+        ReentrantLock lock = lockMap.computeIfAbsent(lockKey, k -> new ReentrantLock());
+        lock.lock();
+        try {
+            // 双重检查
+            DeviceInfo deviceInfo = deviceIdCache.get(deviceId);
+            if (deviceInfo != null) {
+                return deviceInfo;
+            }
+
+            log.info("[loadDeviceInfoByIdFromApi][从远程API获取设备信息][deviceId: {}]", deviceId);
+
+            try {
+                // TODO: 这里需要添加根据 deviceId 获取设备信息的 API
+                // 暂时返回 null，等待 API 完善
+                log.warn("[loadDeviceInfoByIdFromApi][根据deviceId获取设备信息的API尚未实现][deviceId: {}]", deviceId);
+                return null;
+
+            } catch (Exception e) {
+                log.error("[loadDeviceInfoByIdFromApi][远程API调用异常][deviceId: {}]", deviceId, e);
+                return null;
+            }
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    /**
+     * 缓存设备信息
+     *
+     * @param deviceInfo 设备信息
+     * @param cacheKey   缓存键
+     */
+    private void cacheDeviceInfo(DeviceInfo deviceInfo, String cacheKey) {
+        if (deviceInfo != null && deviceInfo.getDeviceId() != null) {
+            deviceIdCache.put(deviceInfo.getDeviceId(), deviceInfo);
+            deviceNameCache.put(cacheKey, deviceInfo.getDeviceId());
+        }
+    }
+
+    /**
+     * 构建设备名称缓存键
+     *
+     * @param productKey 产品标识
+     * @param deviceName 设备名称
+     * @return 缓存键
+     */
+    private String buildDeviceNameCacheKey(String productKey, String deviceName) {
+        return productKey + ":" + deviceName;
+    }
+
+}

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/service/device/IotDeviceClientServiceImpl.java

@@ -1,17 +1,26 @@
 package cn.iocoder.yudao.module.iot.gateway.service.device;
 
 import cn.hutool.core.lang.Assert;
+import cn.hutool.core.bean.BeanUtil;
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
 import cn.iocoder.yudao.module.iot.core.biz.IotDeviceCommonApi;
 import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoReqDTO;
+import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceInfoRespDTO;
 import cn.iocoder.yudao.module.iot.gateway.config.IotGatewayProperties;
 import jakarta.annotation.PostConstruct;
 import jakarta.annotation.Resource;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import org.springframework.web.client.RestTemplate;
 
+import java.util.LinkedHashMap;
+
 import static cn.iocoder.yudao.framework.common.exception.enums.GlobalErrorCodeConstants.INTERNAL_SERVER_ERROR;
 
 /**
@@ -43,6 +52,11 @@ public class IotDeviceClientServiceImpl implements IotDeviceCommonApi {
         return doPost("/auth", authReqDTO);
     }
 
+    @Override
+    public CommonResult<IotDeviceInfoRespDTO> getDeviceInfo(IotDeviceInfoReqDTO infoReqDTO) {
+        return doPostForDeviceInfo("/info", infoReqDTO);
+    }
+
     @SuppressWarnings("unchecked")
     private <T> CommonResult<Boolean> doPost(String url, T requestBody) {
         try {
@@ -57,4 +71,37 @@ public class IotDeviceClientServiceImpl implements IotDeviceCommonApi {
         }
     }
 
+    @SuppressWarnings("unchecked")
+    private <T> CommonResult<IotDeviceInfoRespDTO> doPostForDeviceInfo(String url, T requestBody) {
+        try {
+            // 使用 ParameterizedTypeReference 来处理泛型类型
+            ParameterizedTypeReference<CommonResult<LinkedHashMap<String, Object>>> typeRef = new ParameterizedTypeReference<CommonResult<LinkedHashMap<String, Object>>>() {
+            };
+
+            HttpEntity<T> requestEntity = new HttpEntity<>(requestBody);
+            ResponseEntity<CommonResult<LinkedHashMap<String, Object>>> response = restTemplate.exchange(url,
+                    HttpMethod.POST, requestEntity, typeRef);
+
+            CommonResult<LinkedHashMap<String, Object>> rawResult = response.getBody();
+            log.info("[doPostForDeviceInfo][url({}) requestBody({}) rawResult({})]", url, requestBody, rawResult);
+            Assert.notNull(rawResult, "请求结果不能为空");
+
+            // 手动转换数据类型
+            CommonResult<IotDeviceInfoRespDTO> result = new CommonResult<>();
+            result.setCode(rawResult.getCode());
+            result.setMsg(rawResult.getMsg());
+
+            if (rawResult.isSuccess() && rawResult.getData() != null) {
+                // 将 LinkedHashMap 转换为 IotDeviceInfoRespDTO
+                IotDeviceInfoRespDTO deviceInfo = BeanUtil.toBean(rawResult.getData(), IotDeviceInfoRespDTO.class);
+                result.setData(deviceInfo);
+            }
+
+            return result;
+        } catch (Exception e) {
+            log.error("[doPostForDeviceInfo][url({}) requestBody({}) 发生异常]", url, requestBody, e);
+            return CommonResult.error(INTERNAL_SERVER_ERROR);
+        }
+    }
+
 }

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/service/message/IotDeviceMessageService.java

@@ -12,7 +12,7 @@ public interface IotDeviceMessageService {
     /**
      * 编码消息
      *
-     * @param message 消息
+     * @param message    消息
      * @param productKey 产品 Key
      * @param deviceName 设备名称
      * @return 编码后的消息内容
@@ -23,10 +23,10 @@ public interface IotDeviceMessageService {
     /**
      * 解码消息
      *
-     * @param bytes 消息内容
+     * @param bytes      消息内容
      * @param productKey 产品 Key
      * @param deviceName 设备名称
-     * @param serverId 设备连接的 serverId
+     * @param serverId   设备连接的 serverId
      * @return 解码后的消息内容
      */
     IotDeviceMessage decodeDeviceMessage(byte[] bytes,
@@ -35,8 +35,21 @@ public interface IotDeviceMessageService {
     /**
      * 构建【设备上线】消息
      *
+     * @param productKey 产品 Key
+     * @param deviceName 设备名称
+     * @param serverId   设备连接的 serverId
      * @return 消息
      */
     IotDeviceMessage buildDeviceMessageOfStateOnline(String productKey, String deviceName, String serverId);
 
+    /**
+     * 构建【设备下线】消息
+     *
+     * @param productKey 产品 Key
+     * @param deviceName 设备名称
+     * @param serverId   设备连接的 serverId
+     * @return 消息
+     */
+    IotDeviceMessage buildDeviceMessageOfStateOffline(String productKey, String deviceName, String serverId);
+
 }

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/service/message/IotDeviceMessageServiceImpl.java

@@ -6,6 +6,9 @@ import cn.iocoder.yudao.module.iot.core.enums.IotDeviceMessageMethodEnum;
 import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
 import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
 import cn.iocoder.yudao.module.iot.gateway.codec.alink.IotAlinkDeviceMessageCodec;
+import cn.iocoder.yudao.module.iot.gateway.service.device.IotDeviceCacheService;
+import jakarta.annotation.Resource;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
@@ -18,6 +21,7 @@ import java.util.Map;
  * @author 芋道源码
  */
 @Service
+@Slf4j
 public class IotDeviceMessageServiceImpl implements IotDeviceMessageService {
 
     /**
@@ -25,6 +29,9 @@ public class IotDeviceMessageServiceImpl implements IotDeviceMessageService {
      */
     private final Map<String, IotAlinkDeviceMessageCodec> codes;
 
+    @Resource
+    private IotDeviceCacheService deviceCacheService;
+
     public IotDeviceMessageServiceImpl(List<IotAlinkDeviceMessageCodec> codes) {
         this.codes = CollectionUtils.convertMap(codes, IotAlinkDeviceMessageCodec::type);
     }
@@ -32,51 +39,106 @@ public class IotDeviceMessageServiceImpl implements IotDeviceMessageService {
     @Override
     public byte[] encodeDeviceMessage(IotDeviceMessage message,
                                       String productKey, String deviceName) {
-        // TODO @芋艿：获取设备信息
+        // 获取设备信息以确定编解码类型
-        String codecType = "alink";
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfo(productKey, deviceName);
-        return codes.get(codecType).encode(message);
+        if (deviceInfo == null) {
+            log.warn("[encodeDeviceMessage][设备信息不存在][productKey: {}][deviceName: {}]",
+                    productKey, deviceName);
+            return null;
+        }
+
+        String codecType = "alink"; // 默认使用 alink 编解码器
+        IotAlinkDeviceMessageCodec codec = codes.get(codecType);
+        if (codec == null) {
+            log.error("[encodeDeviceMessage][编解码器不存在][codecType: {}]", codecType);
+            return null;
+        }
+
+        return codec.encode(message);
     }
 
     @Override
     public IotDeviceMessage decodeDeviceMessage(byte[] bytes,
                                                 String productKey, String deviceName, String serverId) {
-        // TODO @芋艿：获取设备信息
+        // 获取设备信息
-        String codecType = "alink";
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfo(productKey, deviceName);
-        IotDeviceMessage message = codes.get(codecType).decode(bytes);
+        if (deviceInfo == null) {
+            log.warn("[decodeDeviceMessage][设备信息不存在][productKey: {}][deviceName: {}]",
+                    productKey, deviceName);
+            return null;
+        }
+
+        String codecType = "alink"; // 默认使用 alink 编解码器
+        IotAlinkDeviceMessageCodec codec = codes.get(codecType);
+        if (codec == null) {
+            log.error("[decodeDeviceMessage][编解码器不存在][codecType: {}]", codecType);
+            return null;
+        }
+
+        IotDeviceMessage message = codec.decode(bytes);
+        if (message == null) {
+            log.warn("[decodeDeviceMessage][消息解码失败][productKey: {}][deviceName: {}]",
+                    productKey, deviceName);
+            return null;
+        }
+
         // 补充后端字段
-        Long deviceId = 25L;
+        return appendDeviceMessage(message, deviceInfo, serverId);
-        Long tenantId = 1L;
-        appendDeviceMessage(message, deviceId, tenantId, serverId);
-        return message;
     }
 
     @Override
     public IotDeviceMessage buildDeviceMessageOfStateOnline(String productKey, String deviceName, String serverId) {
+        // 获取设备信息
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfo(productKey, deviceName);
+        if (deviceInfo == null) {
+            log.warn("[buildDeviceMessageOfStateOnline][设备信息不存在][productKey: {}][deviceName: {}]",
+                    productKey, deviceName);
+            return null;
+        }
+
         IotDeviceMessage message = IotDeviceMessage.of(null,
                 IotDeviceMessageMethodEnum.STATE_ONLINE.getMethod(), null);
-        // 补充后端字段
+
-        Long deviceId = 25L;
+        return appendDeviceMessage(message, deviceInfo, serverId);
-        Long tenantId = 1L;
+    }
-        return appendDeviceMessage(message, deviceId, tenantId, serverId);
+
+    @Override
+    public IotDeviceMessage buildDeviceMessageOfStateOffline(String productKey, String deviceName, String serverId) {
+        // 获取设备信息
+        IotDeviceCacheService.DeviceInfo deviceInfo = deviceCacheService.getDeviceInfo(productKey, deviceName);
+        if (deviceInfo == null) {
+            log.warn("[buildDeviceMessageOfStateOffline][设备信息不存在][productKey: {}][deviceName: {}]",
+                    productKey, deviceName);
+            return null;
+        }
+
+        IotDeviceMessage message = IotDeviceMessage.of(null,
+                IotDeviceMessageMethodEnum.STATE_OFFLINE.getMethod(), null);
+
+        return appendDeviceMessage(message, deviceInfo, serverId);
     }
 
     /**
      * 补充消息的后端字段
      *
-     * @param message  消息
+     * @param message    消息
-     * @param deviceId 设备编号
+     * @param deviceInfo 设备信息
-     * @param tenantId 租户编号
+     * @param serverId   设备连接的 serverId
-     * @param serverId 设备连接的 serverId
      * @return 消息
      */
     private IotDeviceMessage appendDeviceMessage(IotDeviceMessage message,
-                                                 Long deviceId, Long tenantId, String serverId) {
+                                                 IotDeviceCacheService.DeviceInfo deviceInfo, String serverId) {
         message.setId(IotDeviceMessageUtils.generateMessageId()).setReportTime(LocalDateTime.now())
-                .setDeviceId(deviceId).setTenantId(tenantId).setServerId(serverId);
+                .setDeviceId(deviceInfo.getDeviceId()).setTenantId(deviceInfo.getTenantId()).setServerId(serverId);
+
         // 特殊：如果设备没有指定 requestId，则使用 messageId
         if (StrUtil.isEmpty(message.getRequestId())) {
             message.setRequestId(message.getId());
         }
+
+        log.debug("[appendDeviceMessage][消息字段补充完成][deviceId: {}][tenantId: {}]",
+                deviceInfo.getDeviceId(), deviceInfo.getTenantId());
+
         return message;
     }