session问题

[yhm2046]

/**
	 * @description 向t_main_type表插入新类别 insert into t_main_type('mt00','类别名');
	 */
	public static boolean insert2MainType(MainType mainType) {
		Session ses = null;
		SessionFactory sf = null;
		try {
			Configuration cfg = new Configuration().configure();
			sf = cfg.buildSessionFactory();//这句为什么过时了,有啥新的方法?
			ses = sf.openSession();

			Transaction trans = ses.beginTransaction();
			ses.save(mainType); 
			trans.commit(); 
		} catch (HibernateException e) {
			System.out.println("exception-->" + e);
			e.printStackTrace();
			return false;
		} finally {
//			sf.close();  //为什么这里不能关闭,关闭就报错:Unknown service requested [org.hibernate.stat.spi.StatisticsImplementor]
			ses.close();
		}
		return true;
	}

[soton_dolphin]

先让session断开连接 session.disconnect();

[licip]

你这个可能是新版本吧。 新版本的方法有些不同了。

[ZHOU西口]

创建SessionFactory的方法不只LZ指出的，可以查看hibernate API

[yhm2046]

查了下说是这样写:

Configuration cfg = new Configuration().configure();
			 ServiceRegistry serviceRegistry = new ServiceRegistryBuilder()
			 .applySettings(cfg.getProperties()).buildServiceRegistry();
			 SessionFactory sf = cfg.configure().buildSessionFactory(
			 serviceRegistry);
			 Session ses = sf.openSession();

但是我写了报错

[tony4geek]

   Configuration cfg = new Configuration().configure();  
        ServiceRegistry sr = new ServiceRegistryBuilder().applySettings(  
                cfg.getProperties()).buildServiceRegistry();  
        factory = cfg.buildSessionFactory(sr);  

[tony4geek]

不同版本吧的 jar

[xiaohuashenshou]

configurationconfigure()方法里没有参数吗，不指明hibernate配置文件路径怎么去初始化

[yhm2046]

引用 5 楼 rui888 的回复:

   Configuration cfg = new Configuration().configure();  
        ServiceRegistry sr = new ServiceRegistryBuilder().applySettings(  
                cfg.getProperties()).buildServiceRegistry();  
        factory = cfg.buildSessionFactory(sr);  

谢谢,解决了:

public static ArrayList<MainType> queryMainType() {
		ArrayList<MainType> list = null;
		SessionFactory sf = null;
		Session ses = null;
		try {

			Configuration cfg = new Configuration().configure();
			ServiceRegistry sr = new ServiceRegistryBuilder().applySettings(
					cfg.getProperties()).buildServiceRegistry();
			sf = cfg.buildSessionFactory(sr);
			ses = sf.openSession();

			Criteria c = ses.createCriteria(MainType.class);
			list = (ArrayList<MainType>) c.list();
		} catch (HibernateException e) {
			System.out.println("hibernate exception");
			e.printStackTrace();
			return list;
		} finally {
			ses.close();
			sf.close();
		}

		return list;
	}