| ionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try {
// Create the SessionFactory from hibernate.cfg.xml
// 此处还可以在configure方法中指定具体的配置文件 configure(File configFile)
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
store：开始往数据库中写入数据
Hibernat试用一(3)
时间:2009-12-13 51CTO.COM
list：读取目前的记录并在控制台打印出来
public class EventManager {
public static void main(String[] args) {
EventManager mgr = new EventManager();
if (args[0].equals("store")) {
mgr.createAndStoreEvent("My Event", new Date());
} else if (args[0].equals("list")) {
List events = mgr.listEvents();
for (int i = 0; i < events.size(); i++) {
Event theEvent = (Event) events.get(i);
System.out.println("Event: " + theEvent.getTitle() + " Time: " + theEvent.getDate());
}
}
HibernateUtil.getSessionFactory().close();
}
private List listEvents() {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
List result = session.createQuery("from Event").list();
session.getTransaction().commit();
return result;
}
private void createAndStoreEvent(String title, Date theDate) {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Event theEvent = new Event();
theEvent.setTitle(title);
theEvent.setDate(theDate);
session.save(theEvent);
session.getTransaction().commit();
}
}
最终的SRC目录结构如下：
src
│ hibernate.cfg.xml
├─events
│ Event.hbm.xml
│ Event.java
└─util
EventManager.java
HibernateUtil.java
引用的LIB包有：
lib
antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
hibernate3.jar
hsqldb.jar
javassist-3.4.GA.jar
jta-1.1.jar
slf4j-api-1.5.2.jar
slf4j-simple-1.5.2.jar
当然还需要启动数据库：
F:\dev\hsqldb\mytest>java -classpath ../lib/hsqldb.jar org.hsqldb.Server
F:\dev\hsqldb\mytest>java -cp ../lib/hsqldb.jar org.hsqldb.util.DatabaseManager
Hibernate的JAVADOC文档，没找到下载的链接，只有一个在线链接：http://www.hibernate.org/hib_docs/v3/api/ |
