首先是：数据库表设计
然后实体类中的Person类
[java]
public class Person {
protected Integer id;
protected String name;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
学生继承Person。
[java]
public class Student extends Person {
private String school;
public String getSchool() {
return school;
}
public void setSchool(String school) {
this.school = school;
}
}
然后Worker继承Person
[java]
public class Worker extends Person{
private String factory;
public String getFactory() {
return factory;
}
public void setFactory(String factory) {
this.factory = factory;
}
}
然后配置Person.hbm.xml
[html]
< xml version="1.0" encoding="utf-8" >
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
然后测试类
[java]
package Run;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import entity.Student;
import entity.Worker;
public class Run{
Session session=null;
SessionFactory sf=null;
public static void main(String[] args) {
new Run().test1();
}
public void test1(){
Student s1=new Student();
s1.setName("新色");
s1.setSchool("海淀中学");
Worker w1=new Worker();
w1.setName("老张2号");
w1.setFactory("新水网");
try {
session=new Configuration().configure().buildSessionFactory().openSession();
session.beginTransaction();
session.save(s1);
session.save(w1);
session.beginTransaction().commit();
} catch (HibernateException e) {
e.printStackTrace();
session.beginTransaction().rollback();
}
finally{
if(session!=null)
session.close();
}
}
}
执行后控制台输出
[java]
Hibernate: insert into person (name, school, type) values ( , , 'student')
Hibernate: insert into person (name, factory, type) values ( , , 'worker')
再看数据库结果
