springAop.rar_AOP java_cglib_spring aop

package util; import org.apache.log4j.Logger; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; public class HibernateUtil { private static Logger logger = Logger.getLogger(HibernateUtil.class); private static final SessionFactory sessionFactory; static { try { sessionFactory = new Configuration().configure("hibernate.cfg.xml") .buildSessionFactory(); } catch (Throwable ex) { logger.error(ex, ex); throw new ExceptionInInitializerError(ex); } } public static ThreadLocal session = null; public static Session currentSession() throws HibernateException { if (session == null) { session = new ThreadLocal(); } return currentSession(true); } public static Session masterSession() throws HibernateException { // Open a new Session, if this Thread has none yet try { return sessionFactory.openSession(); } catch (Throwable ex) { logger.error(ex, ex); throw new HibernateException(ex); } } public static Session currentSession(boolean create) throws HibernateException { Session s = (Session) session.get(); // Open a new Session, if this Thread has none yet try { if (s == null && create) { logger.debug("***to create a session***"); s = sessionFactory.openSession(); s.connection().setAutoCommit(false); session.set(s); } return s; } catch (Throwable ex) { logger.error(ex, ex); throw new HibernateException(ex); } } /** * * 什么都不做 * * @throws HibernateException * */ public static void closeSession() throws HibernateException { Session s = (Session) session.get(); org.hibernate.Transaction trans = s.getTransaction(); if (trans != null && trans.isActive()) { logger.debug("incompleted transaction"); } session.set(null); if (s != null) { s.close(); } } }