修复land为null时，没有二维码信息，日志查不到问题

@@ -470,8 +470,8 @@ public class LiftBar {
         String flag="",type="";
         commandLog command=new commandLog();
         command.setId(UUID.randomUUID().toString());
+        command.setBarcode(info.getBarcode());
         if(land!=null){
-            command.setBarcode(land.getBarcode());
             command.setBusnessType(land.getBusinesstype());
         }
         command.setAreaId(info.getAreaid());