使用Hibernate框架时，运行出现“ student is not mapped [from student ... ]”错误

使用Hibernate框架时，运行出现“ org.hibernate.hql.ast.QuerySyntaxException: student is not mapped [from student...]”错误。

hql语句：String hql = "from student where phoneNum = ? and password = ?";

错误原因：from后面应该写实体类（Student.java）的名字，而非数据库中实体类对应的表名（student）。

改正：String hql = "from Student where phoneNum = ? and password = ?";