<hibernate-configuration>
	<session-factory>

        <!-- Database connection settings (数据库 连接  配置) -->
        <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="connection.url">jdbc:oracle:thin:@localhost:1521:NEWERDRA</property>
        <property name="connection.username">sa</property>
        <property name="connection.password">sa</property>

        <!-- JDBC connection pool (use the built-in)(JDBC连接池  (使用内置的))  -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect (SQL 方言)-->
        <property name="dialect">org.hibernate.dialect.Oracle9iDialect</property>

        <!-- Enable Hibernate's automatic session context management
        	 启用Hibernate自动的会话上下文管理
         -->
        <property name="current_session_context_class">thread</property>

        <!-- 设置事务的级别 -->
        <property name="hibernate.connection.isolation">2</property>

        <!-- Disable the second-level cache (禁用二级缓存) -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout 输出所有执行的SQL在控制台-->
        <property name="show_sql">true</property>
        <property name="hibernate.format_sql">true</property>

        <!-- Drop and re-create the database schema on startup
        	 删除并重新创建数据库模式，再启动
         -->
        <property name="hbm2ddl.auto">create</property>

    </session-factory>