public void testSaveStudentsWithOpenSession() {

/*Hibernate5.x版本的測(cè)試方式*/

//獲得服務(wù)注冊(cè)對(duì)象

// 使用 final修飾引用變量時(shí)，當(dāng)該引用變量被初始化賦值后，就不能再指向其他對(duì)象，但是該對(duì)象的內(nèi)容可以修改。

// TODO 或許正是在這里使用了final，使用openSession而沒(méi)有手動(dòng)關(guān)閉，多次之后而【不會(huì)】導(dǎo)致連接池溢出

final StandardServiceRegistry registry = new StandardServiceRegistryBuilder().configure().build();

try {

? ??

//獲得sessionFactory對(duì)象

SessionFactory sessionFactory = new MetadataSources(registry).buildMetadata().buildSessionFactory();

? ? //獲得session對(duì)象

Session session1 = sessionFactory.openSession();? ? //

//開(kāi)啟事務(wù)

Transaction transaction = session1.beginTransaction();

//生成一個(gè)學(xué)生對(duì)象

Students s = new Students(1,"張三豐","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(wù)

//獲取第二個(gè)session

Session session2 = sessionFactory.openSession();

Transaction transaction2 = session2.beginTransaction();

s = new Students(2,"sd豐","男",new Date(),"北京");

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);

//session1.close()? //

transaction2.commit();? //提交事務(wù)

} catch (Exception e) {

e.printStackTrace();

StandardServiceRegistryBuilder.destroy( registry );

}

}

}