fix:修复实时数据点位类型展示问题

yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/DeviceServiceImpl.java

@@ -715,6 +715,9 @@ public class DeviceServiceImpl implements DeviceService {
                             DeviceAttributeTypeDO::getName
                     ));
 
+            Map<Long, String> attributeTypeCache = new HashMap<>();
+
+
             // 3. 遍历并处理
             for (Map<String, Object> deviceData : deviceDataList) {
                 String queryDataJson = (String) deviceData.get("queryData");
@@ -729,12 +732,31 @@ public class DeviceServiceImpl implements DeviceService {
                     for (Map<String, Object> data : dataList) {
                         // 获取属性类型名称
                         String attributeTypeName = "其他";
-                        String typeStr = (String) data.get("attributeType");
+                        Object typeObj = data.get("attributeType");
-                        if (typeStr != null) {
+
+                        if (typeObj != null) {
+                            String typeStr = typeObj.toString();
+
                             try {
+                                // 尝试当作数字 ID
+                                Long typeId = Long.parseLong(typeStr);
+
+                                // 先从缓存查
+                                if (attributeTypeCache.containsKey(typeId)) {
+                                    attributeTypeName = attributeTypeCache.get(typeId);
+                                } else {
+                                    // 查数据库
+                                    String nameFromDb = idToNameMap.get(typeId);
+                                    if (nameFromDb != null) {
+                                        attributeTypeName = nameFromDb;
+                                    } else {
+                                        attributeTypeName = typeStr; // 查不到就用原值
+                                    }
+                                    attributeTypeCache.put(typeId, attributeTypeName);
+                                }
+                            } catch (NumberFormatException e) {
+                                // 不是数字，直接用原字符串
                                 attributeTypeName = typeStr;
-                            } catch (Exception e) {
-                                attributeTypeName = "未知";
                             }
                         }
 
@@ -781,7 +803,8 @@ public class DeviceServiceImpl implements DeviceService {
             // 2. 获取属性类型映射 (ID -> Name) 并构建缓存，避免重复数据库查询
             Map<Long, String> idToNameMap = deviceAttributeTypeMapper.selectList()
                     .stream()
-                    .collect(Collectors.toMap(DeviceAttributeTypeDO::getId, DeviceAttributeTypeDO::getName));
+                    .collect(Collectors.toMap(DeviceAttributeTypeDO::getId, DeviceAttributeTypeDO::getName)
+                    );
 
             // 额外缓存：数字ID -> 名称，防止同一个ID多次查询数据库
             Map<Long, String> attributeTypeCache = new HashMap<>();