package org.hibernate;
import java.io.Serializable;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;
public class HibernateSessionFactory {
private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";
private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();
private static Configuration configuration = new Configuration();
private static org.hibernate.SessionFactory sessionFactory;
private static String configFile = CONFIG_FILE_LOCATION;
static { //初使化时执行一次，以后就不会执行了！
try {
configuration.configure(configFile); //解析hibernate.cfg.xml映射文件。
sessionFactory = configuration.buildSessionFactory();
} catch (Exception e) {
System.err
.println("%%%% Error Creating SessionFactory %%%%");
e.printStackTrace();
}
}
private HibernateSessionFactory() { //不能new
}
public static Session getSession() throws HibernateException {
Session session = (Session) threadLocal.get();
if (session == null || !session.isOpen()) {
if (sessionFactory == null) {
rebuildSessionFactory();
}
session = (sessionFactory != null) ? sessionFactory.openSession()
: null;
threadLocal.set(session);
}
return session;
}
public static void rebuildSessionFactory() {
try {
configuration.configure(configFile);
sessionFactory = configuration.buildSessionFactory();
} catch (Exception e) {
System.err
.println("%%%% Error Creating SessionFactory %%%%");
e.printStackTrace();
}
}
public static void closeSession() throws HibernateException {
Session session = (Session) threadLocal.get();
threadLocal.set(null);
if (session != null) {
session.close();
}
}
public static org.hibernate.SessionFactory getSessionFactory() {
return sessionFactory;
}
public static void setConfigFile(String configFile) {
HibernateSessionFactory.configFile = configFile;
sessionFactory = null;
}
public static Configuration getConfiguration() {
return configuration;
}
//增加对象
public static void add(Object entity){
Session s=null;
Transaction tx=null;
try{
s=HibernateSessionFactory.getSession();
tx=s.beginTransaction();
s.save(entity);
tx.commit();
}finally{
if(s!=null){
s.close();
}
}
}
//更新对象
public static void update(Object entity){
Session s=null;
Transaction tx=null;
try{
s=HibernateSessionFactory.getSession();
tx=s.beginTransaction();
s.update(entity);
tx.commit();
}finally{
if(s!=null){
s.close();
}
}
}
//删除对象
public static void delete(Object entity){
Session s=null;
Transaction tx=null;
try{
s=HibernateSessionFactory.getSession();
tx=s.beginTransaction();
s.delete(entity);
tx.commit();
}finally{
if(s!=null){
s.close();
}
}
}
//通过id得到对象
public static Object get(Class clazz,Serializable id){
Session s=null;
try{
s=HibernateSessionFactory.getSession();
Object obj=s.get(clazz, id);
return obj;
}finally{
if(s!=null){
s.close();
}
}
}
}
hibernate5.0.rar （35个子文件） 
hibernate5.0 
.project 722B bin org hibernate HibernateSessionFactory.class 4KB dao EmployeeDAO.class 370B DepartmentDAO.class 388B test EmployeeTest.class 3KB DepartmentTest.class 1KB 笔记 4KB domain Employee.hbm.xml 518B Employee.class 1KB Department.class 1KB Department.hbm.xml 589B impl EmployeeImpl.class 3KB DepartmentImpl.class 3KB hibernate.cfg.xml 1KB .mymetadata 309B WebRoot WEB-INF web.xml 375B index.jsp 834B META-INF MANIFEST.MF 39B 问题 58B src org hibernate dao DepartmentDAO.java 351B EmployeeDAO.java 328B test EmployeeTest.java 2KB DepartmentTest.java 1KB 笔记 4KB domain Employee.hbm.xml 518B Employee.java 513B Department.java 581B Department.hbm.xml 589B impl DepartmentImpl.java 3KB EmployeeImpl.java 3KB HibernateSessionFactory.java 3KB hibernate.cfg.xml 1KB .classpath 411B .myhibernatedata 474B
mysql-connector-java-3.1.12-bin.jar 436KB资源评论
rzyukai12013-07-17行，可以用。
HeyHui2012-09-27行，可以用。拿来参考
