HibernateTest.java import onlyfun.caterpillar.*; import net.sf.hibernate.*; import net.sf.hibernate.cfg.*; import java.util.*; public class HibernateTest { public static void main(String[] args) throws HibernateException { SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); Session session = sessionFactory.openSession(); List users = session.find("from User"); User updated = null; for (ListIterator iterator = users.listIterator(); iterator.hasNext(); ) { User user = (User) iterator.next(); if(updated == null) updated = user; System.out.println(user.getName() + "\n\tAge: " + user.getAge() + "\n\tSex: " + user.getSex()); } updated.setName("justin"); session.flush(); users = session.find("from User"); session.close(); sessionFactory.close(); for (ListIterator iterator = users.listIterator(); iterator.hasNext(); ) { User user = (User) iterator.next(); System.out.println(user.getName() + "\n\tAge: " + user.getAge() + "\n\tSex: " + user.getSex()); } } }
这个程序会显示数据表中的所有数据，并将数据表中的第一笔数据更新，一个执行的结果如下： log4j:WARN No appenders could be found for logger (net.sf.hibernate.cfg.Environment). log4j:WARN Please initialize the log4j system properly. Hibernate: select user0_.user_id as user_id, user0_.name as name, user0_.sex as sex, user0_.age as age from USER user0_ caterpillar Age: 28 Sex: M momor Age: 25 Sex: F Bush Age: 25 Sex: M Becky Age: 35 Sex: F Hibernate: update USER set name=?, sex=?, age=? where user_id=? Hibernate: select user0_.user_id as user_id, user0_.name as name, user0_.sex as sex, user0_.age as age from USER user0_ justin Age: 28 Sex: M momor Age: 25 Sex: F Bush Age: 25 Sex: M Becky Age: 35 Sex: F
