能够运行。但是控制台上输出的sql语句是这样的

Hibernate: 

    select

        students0_.id as id1_0_0_,

        students0_.name as name2_0_0_,

        students0_.sex as sex3_0_0_,

        students0_.address as address4_0_0_,

        students0_.picture as picture5_0_0_ 

    from

        hibernate.students students0_ 

    where

        students0_.id=?

hibernate.Students@32f06b32