老师就是我想多增加一个模块是活动，但是做的时候很奇怪了，每次mybaties多加了limit 1 只能获取1条

@RequestMapping("activityList.do")
@ResponseBody
public ServiceResponse getList(@RequestParam(value="pageNum",defaultValue = "1")int pageNum,@RequestParam(value = "pageSize",defaultValue = "10")int pageSize){

   return editor.getActivityList(pageNum,pageSize);
}

@Override
public ServiceResponsegetActivityList(int pageNum, int pageSize) {
   PageHelper.startPage(pageNum,pageSize);
   ListactivitiesList =  activityMapper.selectList();
   PageInfo pageInfo = new PageInfo(activitiesList);
   pageInfo.setList(activitiesList);
   return ServiceResponse.createBySuccess(pageInfo);
}

   select        from activity order by create_time desc

   
   
     id,main_img,detail_id,user_id,briefly,title,create_time,update_time,classify
   

不知道是啥原因，我做筛选条件也是这样，只获取一条本身我没限制 但是老是喜欢在后加 limit 1；