通知公告删除功能实现代码疑问！！！

一路向北

jeecg中的通知公告模块，删除通知时，在controller和service层代码中同时实现了通知公告信息的删除功能，谁知道是什么原因吗？？？？？？？？？？？？？？？？？？？？？

controller层：
if("2".equals(tSNotice.getNoticeLevel())){
   String sql = "delete from t_s_notice_authority_role where notice_id = '"+tSNotice.getId()+"'";
   systemService.executeSql(sql);
}else if("3".equals(tSNotice.getNoticeLevel())){
   String sql = "delete from t_s_notice_authority_user where notice_id = '"+tSNotice.getId()+"'";
   systemService.executeSql(sql);
}
String sql = "delete from t_s_notice_read_user where notice_id = '"+tSNotice.getId()+"'";
systemService.executeSql(sql);

noticeService.delete(tSNotice);service层：
@Override
public <T> void delete(T entity) {
   TSNotice notice = (TSNotice)entity;
   super.deleteAllEntitie(super.findByProperty(TSNoticeReadUser.class, "noticeId", notice.getId()));
   super.deleteAllEntitie(super.findByProperty(TSNoticeAuthorityUser.class, "noticeId", notice.getId()));
   super.deleteAllEntitie(super.findByProperty(TSNoticeAuthorityRole.class, "noticeId", notice.getId()));
   super.delete(notice);
      //执行删除操作配置的sql增强
   this.doDelSql(notice);
}
一脸懵逼心茫然啊，求道友解惑！！！！

一路向北

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