hibernate插入数据

/**
  * 插入一条记录，调用该方法前须向实体类User1中插入数据
  */
 public static void insert(User1 u) {
  try {
   session = HibernateSessionFactory.getSession();
   Transaction tran = session.beginTransaction();
   session.save(u);
   tran.commit();
  } catch (Exception e) {
   e.printStackTrace();
  } finally {
   HibernateSessionFactory.closeSession();
  }
 }