import?java.sql.Connection;
import?java.sql.SQLException;
import?java.util.Date;

import?org.hibernate.Session;
import?org.hibernate.SessionFactory;
import?org.hibernate.Transaction;
import?org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import?org.hibernate.cfg.Configuration;
import?org.hibernate.jdbc.Work;
import?org.hibernate.service.ServiceRegistry;
import?org.junit.Test;

public?class?SessionTest?{

????@Test
????public?void?testOpenSession()?{
????????Configuration?config?=?new?Configuration().configure();?//?獲得配置對象
????????//?獲取服務注冊對象
????????ServiceRegistry?serviceRegistry?=?new?StandardServiceRegistryBuilder().applySettings(config.getProperties())
????????????????.configure().build();
????????//?獲得sessionFactory對象
????????SessionFactory?sessionFactory?=?config.buildSessionFactory(serviceRegistry);
????????//?獲得session對象
????????Session?session1?=?sessionFactory.openSession();
????????Session?session2?=?sessionFactory.openSession();
????????System.out.println(session1==session2);?//false
????????
????????/*
????????if?(session?!=?null)?{
????????????System.out.println("session創(chuàng)建成功！");
????????}?else?{
????????????System.out.println("session創(chuàng)建失??！");
????????}*/
????}
????
????@Test
????public?void?testSaveStudentsWithOpenSession()?{
????????Configuration?config?=?new?Configuration().configure();?//?獲得配置對象
????????//?獲取服務注冊對象
????????ServiceRegistry?serviceRegistry?=?new?StandardServiceRegistryBuilder().applySettings(config.getProperties())
????????????????.configure().build();
????????//?獲得sessionFactory對象
????????SessionFactory?sessionFactory?=?config.buildSessionFactory(serviceRegistry);
????????//?獲得session對象
????????Session?session1?=?sessionFactory.openSession();
????????//開啟事務
????????Transaction?transaction?=?session1.beginTransaction();
????????//生成一個學生對象
????????Students?s?=?new?Students(1,?"張三",?"男",?new?Date(),?"北京");
????????session1.doWork(new?Work()?{

????????????@Override
????????????public?void?execute(Connection?connection)?throws?SQLException?{
????????????????//?TODO?Auto-generated?method?stub
????????????????System.out.println("connection?hashCode:"+connection.hashCode());
????????????}
????????????
????????});
????????session1.save(s);
????????//session1.close();
????????transaction.commit();?//提交事務
????????
????????Session?session2?=?sessionFactory.openSession();
????????//開啟事務
????????transaction?=?session2.beginTransaction();
????????//生成一個學生對象
????????s?=?new?Students(2,?"李四",?"男",?new?Date(),?"上海");
????????session2.doWork(new?Work()?{

????????????@Override
????????????public?void?execute(Connection?connection)?throws?SQLException?{
????????????????//?TODO?Auto-generated?method?stub
????????????????System.out.println("connection?hashCode:"+connection.hashCode());
????????????}
????????????
????????});
????????session2.save(s);
????????transaction.commit();
????????
????}
????
????@Test
????public?void?testSaveStudentsWithGetCurrentSession()?{
????????Configuration?config?=?new?Configuration().configure();?//?獲得配置對象
????????//?獲取服務注冊對象
????????ServiceRegistry?serviceRegistry?=?new?StandardServiceRegistryBuilder().applySettings(config.getProperties())
????????????????.configure().build();
????????//?獲得sessionFactory對象
????????SessionFactory?sessionFactory?=?config.buildSessionFactory(serviceRegistry);
????????//?獲得session對象
????????Session?session1?=?sessionFactory.getCurrentSession();
????????//開啟事務
????????Transaction?transaction?=?session1.beginTransaction();
????????//生成一個學生對象
????????Students?s?=?new?Students(1,?"張三",?"男",?new?Date(),?"北京");
????????session1.doWork(new?Work()?{

????????????@Override
????????????public?void?execute(Connection?connection)?throws?SQLException?{
????????????????//?TODO?Auto-generated?method?stub
????????????????System.out.println("connection?hashCode:"+connection.hashCode());
????????????}
????????????
????????});
????????session1.save(s);
????????//session1.close();
????????transaction.commit();?//提交事務
????????
????????Session?session2?=?sessionFactory.getCurrentSession();
????????//開啟事務
????????transaction?=?session2.beginTransaction();
????????//生成一個學生對象
????????s?=?new?Students(2,?"李四",?"男",?new?Date(),?"上海");
????????session2.doWork(new?Work()?{

????????????@Override
????????????public?void?execute(Connection?connection)?throws?SQLException?{
????????????????//?TODO?Auto-generated?method?stub
????????????????System.out.println("connection?hashCode:"+connection.hashCode());
????????????}
????????????
????????});
????????session2.save(s);
????????transaction.commit();
????}
????

????@Test
????public?void?testGetCurrentSession()?{
????????Configuration?config?=?new?Configuration().configure();?//?獲得配置對象
????????//?獲取服務注冊對象
????????ServiceRegistry?serviceRegistry?=?new?StandardServiceRegistryBuilder().applySettings(config.getProperties())
????????????????.configure().build();
????????//?獲得sessionFactory對象
????????SessionFactory?sessionFactory?=?config.buildSessionFactory(serviceRegistry);
????????//?獲得session對象
????????Session?session1?=?sessionFactory.getCurrentSession();
????????Session?session2?=?sessionFactory.getCurrentSession();
????????
????????System.out.println(session1==session2);?//true
????????
????????/*
????????if?(session?!=?null)?{
????????????System.out.println("session創(chuàng)建成功！");
????????}?else?{
????????????System.out.println("session創(chuàng)建失??！");
????????}*/
????}
}

下面是cfg.xml配置

<?xml?version="1.0"?encoding="UTF-8"?>
<!DOCTYPE?hibernate-configuration?PUBLIC
????????"-//Hibernate/Hibernate?Configuration?DTD?3.0//EN"
????????"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
????<session-factory>
??????<property?name="connection.username">root</property>
??????<property?name="connection.password">root</property>
??????<property?name="connection.driver_class">com.mysql.jdbc.Driver</property>
??????<property?name="connection.url">jdbc:mysql:///hibernate?useUnicode=true&amp;characterEncoding=UTF-8</property>
??????<property?name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
??????
??????<property?name="show_sql">true</property>
??????<property?name="format_sql">true</property>
??????<property?name="hibernate.default_schema">hibernate</property>
??????<property?name="hbm2ddl.auto">create</property>
??????<property?name="hibernate.current_session_context_class">thread</property>
??????
??????<mapping?resource="Students.hbm.xml"/>
??????
????</session-factory>
</hibernate-configuration>