Hibernate一对多单向关系

业务逻辑：

Teacher类和Student类，假定为一对多的关系，即一个教师有多个学生。

1.   数据库schema

Teachers表:

create table TEACHERS

(

  ID          NUMBER(10) not null,

  TEACHERNAME VARCHAR2(15)

)

alter table TEACHERS

  add constraint DERE PRimary key (ID)

Students表：

create table STUDENTS

(

  ID          NUMBER(10) not null,

  STUDENTNAME VARCHAR2(15),

  TEACHER_ID  NUMBER(10)

)

alter table STUDENTS

  add constraint RERE primary key (ID)

alter table STUDENTS

  add constraint FFF foreign key (TEACHER_ID)

  references TEACHERS (ID);

2.   Teacher.java和Student.java

Teacher.java

package mypack;