用户导出修改

wisenergy-service/src/main/java/cn/wisenergy/service/app/impl/UserServiceImpl.java

@@ -392,7 +392,7 @@ public class UserServiceImpl extends ServiceImpl<UsersMapper, User> implements U
                             .lastLoginTime(t.getLastLoginTime())
                             .cultureGrade(t.getCultureGrade())
                             .majorGrade(t.getMajorGrade())
-                            .queryLimit(t.getQueryLimit())
+                            .queryLimit(t.getQueryLimit() == null ? null : t.getQueryLimit())
                             .build()).collect(Collectors.toList());
 
             //创建文件名称