Hql語句中使用group by having中注意

String hql = "SELECT openId FROM ReadLog where createTime > :startTime group by openId having count(1)>:count"; 

以上語句報錯，原因是hql不允許使用count(1)

正解：

String hql = "SELECT openId FROM ReadLog where createTime > :startTime group by openId having count(openId)>:count";