创建/修改稽查任务成功后，返回最新的对象，创建失败时返回null

src/main/java/com/wangxiaolu/promotion/domain/examine/dao/impl/ActivityExamineDaoImpl.java

@@ -54,6 +54,7 @@ public class ActivityExamineDaoImpl implements ActivityExamineDao {
             if (eMsg.contains("for key 'plan_id_unique'")) {
                 throw new ParamException(RCode.DATA_HAVE_ERROR);
             }
+            return null;
         }
     }