hibernate.cfg.xml文件的解说

?xml version='1.0' encoding='utf-8'?!DOCTYPE hibernate-configuration PUBLIC -//Hibernate/Hibernate Configuration DTD 3.0//EN http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtdhibernate-configurationsession-factory!-- Database con

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

	<session-factory>

		<!-- Database connection settings -->
		<!-- 连接数据库的操作 -->
		<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property>
		<property name="connection.username">root</property>
		<property name="connection.password">admin</property>

		<!-- JDBC connection pool (use the built-in) -->
		<!-- 真正开发很少用hibernate自带的连接池,用application本身用jndi注册在里面的连接池 -->
		<!-- <property name="connection.pool_size">1</property> -->

		<!-- SQL dialect -->
		<!-- 数据库方言hql是hibernate官方的语言 -->
		<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

		<!-- Enable Hibernate's automatic session context management -->
		<!-- <property name="current_session_context_class">thread</property> -->

		<!-- Disable the second-level cache -->
		<!-- 不使用二级缓存的设置 -->
		<!-- 优化hibernate的时候会用到 -->
		<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>

		<!-- Echo all executed SQL to stdout -->
		<!-- 控制台打印sql语句 -->
		<property name="show_sql">true</property>

		<!-- Drop and re-create the database schema on startup -->
		<!-- hibernate是否自动生成建表语句 -->
		<!-- ddl数据库定义语言，即建表语句 -->
		<!-- <property name="hbm2ddl.auto">update</property> -->


		<!-- 映射实体的配置文件 -->
		<mapping resource="org/hibernate/tutorial/domain/Event.hbm.xml" />

	</session-factory>

</hibernate-configuration>