添加默认类别逻辑

@@ -6,6 +6,7 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
+import org.checkerframework.checker.units.qual.C;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -48,7 +49,12 @@ public class TkDeviceCagegoryServiceImpl extends AbstractBaseService<TkDeviceCag
             tkDeviceCagegoryDTO.copyToEntity(entity);
             String id = UUID.randomUUID().toString();
             entity.setId(id);
-            entity.setPathId(parentDto.getPathId() + "_" + id);
+            if (parentDto == null) {
+                entity.setPathId(id);
+            } else {
+                entity.setPathId(parentDto.getPathId() + "_" + id);
+            }
+
             baseMapper.insert(entity);
 
         } else {
@@ -118,6 +124,14 @@ public class TkDeviceCagegoryServiceImpl extends AbstractBaseService<TkDeviceCag
     @Override
     public List<TkDeviceCagegoryDTO> getAllCagegory(TkDeviceCagegoryDTO dto) throws ThingsboardException {
         List<TkDeviceCagegoryDTO> topMenuList = getCagegoryByParentid(null);
+        if (CollectionUtils.isEmpty(topMenuList)) {
+            TkDeviceCagegoryDTO parent = new TkDeviceCagegoryDTO();
+            TenantId tenantId = SpringBeanUtils.getTenantId();
+            parent.setTenantId(tenantId.toString());
+            parent.setName("全部");
+            TkDeviceCagegoryDTO parentDto = save(parent);
+            topMenuList.add(parentDto);
+        }
         List<TkDeviceCagegoryDTO> subMenu = getSubCategory();
         if (CollectionUtils.isEmpty(subMenu)) {
             return topMenuList;