fix: 地区选择的区域缓存key加上level

@@ -29,7 +29,8 @@ public class SysAreaServiceImpl implements SysAreaService {
 
   @Override
   public List<SysAreaDTO> list(SysAreaDTO sysAreaDTO) {
-    List<SysAreaDTO> result = cacheManager.getCache(FastIotConstants.CacheConfigKey.AREA).get(sysAreaDTO.getParentId(),List.class);
+    String areaKey = sysAreaDTO.getParentId() + "-" + sysAreaDTO.getLevel();
+    List<SysAreaDTO> result = cacheManager.getCache(FastIotConstants.CacheConfigKey.AREA).get(areaKey,List.class);
     if(result == null || result.isEmpty()){
       result = ReflectUtils.sourceToTarget(
               sysAreaMapper.selectList(
@@ -45,7 +46,7 @@ public class SysAreaServiceImpl implements SysAreaService {
                                       SysAreaEntity::getName,
                                       sysAreaDTO.getName())),
               SysAreaDTO.class);
-      cacheManager.getCache(FastIotConstants.CacheConfigKey.AREA).put(sysAreaDTO.getParentId(),result);
+      cacheManager.getCache(FastIotConstants.CacheConfigKey.AREA).put(areaKey,result);
     }