feat(device): 优化设备数据推送频率并添加设备附件删除功能- 调整数据推送频率：将 DataPushTask 类中的 pushData 方法执行频率从 20000 毫秒改为 3000 毫秒

- 新增设备附件删除功能：在 DeviceController、DeviceService 和 DeviceServiceImpl 中添加 deleteIconOrPreview 方法，用于删除设备的图标或预览图
- 在设备创建时，如果产品有默认图标或预览图，自动关联到设备

src/main/java/com/zsc/edu/gateway/framework/websocket/DataPushTask.java

@@ -21,7 +21,7 @@ public class DataPushTask {
     private final RecordWebSocketHandler recordHandler;
     private final ProductWebSocketHandler productHandler;
 
-    @Scheduled(fixedRate = 20000)
+    @Scheduled(fixedRate = 3000)
     public void pushData() {
         pushAndBroadcast(deviceService::status, deviceHandler);
         pushAndBroadcast(recordDataService::recordDataStatus, recordHandler);

src/main/java/com/zsc/edu/gateway/modules/iot/device/controller/DeviceController.java

@@ -170,4 +170,13 @@ public class DeviceController {
     public int toggle(@PathVariable("id") Long id) {
         return service.toggle(id);
     }
+
+    /**
+     * 删除图片或预览图
+     */
+    @DeleteMapping("/attachment/{id}")
+    @OperationLogAnnotation(content = "'设备图片或预览图'", operationType = "删除")
+    public Boolean deleteIconOrPreview(@PathVariable("id") Long id, String attachmentId) {
+        return service.deleteIconOrPreview(id, attachmentId);
+    }
 }

src/main/java/com/zsc/edu/gateway/modules/iot/device/service/DeviceService.java

@@ -38,4 +38,6 @@ public interface DeviceService extends IService<Device> {
     List<Device> findByName(String name);
 
     int toggle(Long id);
+
+    boolean deleteIconOrPreview(Long id, String attachmentId);
 }

src/main/java/com/zsc/edu/gateway/modules/iot/device/service/impl/DeviceServiceImpl.java

@@ -10,6 +10,7 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.zsc.edu.gateway.exception.ConstraintException;
 import com.zsc.edu.gateway.exception.OutlineException;
 import com.zsc.edu.gateway.framework.redis.RedisUtils;
+import com.zsc.edu.gateway.modules.attachment.service.AttachmentService;
 import com.zsc.edu.gateway.modules.iot.device.dto.BatchDeviceDto;
 import com.zsc.edu.gateway.modules.iot.device.dto.DeviceDto;
 import com.zsc.edu.gateway.modules.iot.device.dto.DeviceServeDto;
@@ -60,6 +61,8 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceRepository, Device> imp
     private DeviceRepository deviceRepo;
     @Resource
     private MqttConfig mqttConfig;
+    @Resource
+    private AttachmentService attachmentService;
     /**
      * 新建设备
      */
@@ -70,6 +73,13 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceRepository, Device> imp
             throw new ConstraintException("该设备名称已存在！");
         }
         Device device = mapper.toEntity(dto);
+        Product product = productRepo.selectById(device.getProductId());
+        if (product.getIconId() != null) {
+            device.setIconId(product.getIconId());
+        }
+        if (product.getPreviewId() != null) {
+            device.setPreviewId(product.getPreviewId());
+        }
         save(device);
         return device;
     }
@@ -240,4 +250,21 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceRepository, Device> imp
         device.setOnline(!device.getOnline());
         return baseMapper.updateById(device);
     }
+
+    /**
+     * 删除设备头像
+     */
+    @Override
+    public boolean deleteIconOrPreview(Long id, String attachmentId) {
+        Device device = baseMapper.selectById(id);
+        if (device.getIconId().equals(attachmentId)) {
+            device.setIconId("");
+        }
+        if (device.getPreviewId().equals(attachmentId)) {
+            device.setPreviewId("");
+        }
+        attachmentService.delete(attachmentId);
+        baseMapper.updateById(device);
+        return true;
+    }
 }