修改没有墙数据

sxz-core/src/main/java/com/fdkk/sxz/webApi/controller/ImportDataController.java

@@ -646,10 +646,9 @@ public class ImportDataController extends BaseController {
                         cad.init(inputArray.getJSONObject(i));
                         cad.input = cad.preHandle(cad.input);
                         JSONArray beams = cad.getBeams();
-                        JSONArray walls = cad.getWalls();
+                        JSONArray walls = ObjectUtil.isNotNull(cad.getWalls()) ? cad.getWalls() : new JSONArray();
                         //判断是否需要重复出去墙
                         AtomicBoolean removeAgain = new AtomicBoolean(false);
-                        //去除重复的墙
                         walls = cad.removeRepeat(walls);
 
                         JSONArray rooms = cad.getRooms();