hibernate正向生成数据库表以及配置——hibernate.cfg.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration>
    <session-factory>
        <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property>
        <property name="connection.url">jdbc:oracle:thin:@127.0.0.1:1521:orcl</property>
        <property name="connection.username">student</property>
        <property name="connection.password">student</property>
        <property name="current_session_context_class">thread</property>
        <property name="connection.driver_class">oracle.jdbc.OracleDriver</property>
        <property name="myeclipse.connection.profile">student</property>
        <!--显示sql语句  -->
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
        <!--自动创建表  -->
        <!--<property name="hbm2ddl.auto">create</property>-->
        <!--映射文件  -->
        <mapping
      resource="cn/bdqn/studentInfo/entity/Student.hbm.xml" />
    <mapping
      resource="cn/bdqn/studentInfo/entity/Teacher.hbm.xml" />
    </session-factory>
</hibernate-configuration>