fix(jg)：厂车的车牌号展示

amos-boot-system-tzs/amos-boot-module-jg/amos-boot-module-jg-biz/src/main/java/com/yeejoin/amos/boot/module/jg/biz/controller/JgUseRegistrationController.java

@@ -53,7 +53,7 @@ public class JgUseRegistrationController extends BaseController {
                 String.valueOf(map.get("instanceId")),
                 String.valueOf(map.get("operate")),
                 String.valueOf(map.get("comment")),
-                String.valueOf(map.get("carNumber")));
+                String.valueOf(map.getOrDefault("carNumber","")));
         return ResponseHelper.buildResponse("ok");
     }