我已经将一个网络应用程序部署到了heroku,一切似乎都没问题。我运行了迁移,但它很成功。
当我尝试在浏览器中打开应用程序时出现以下错误,可能是什么问题?考虑到迁移是成功的,当我从本地主机访问heroku数据库时,它运行良好。
List<LeaveManagement> leaveManagements = session.createCriteria(LeaveManagement.class)
.add( Restrictions.isNull("approvedTimeStamp") )
.uniqueResult();
If you want to write a hql query you can write as:
String hql = "from LeaveManagement where approvedTimeStamp is null";
Query query = session.createQuery(hql);
LeaveManagement results = (LeaveManagement) query.uniqueResult();
请帮助。