hibernate.cfg.xml spring 上下文

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">

<hibernate-configuration>

    <session-factory>
	   	<!--
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/hibernate2</property>
        <property name="connection.username">root</property>
        <property name="connection.password"></property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
  -->	

        <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="connection.url">jdbc:oracle:thin:@localhost:1521:MYORACLE</property>
        <property name="connection.username">scott</property>
        <property name="connection.password">tiger</property>
      	<property name="dialect">org.hibernate.dialect.OracleDialect</property>
              

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>
	

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

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>

        <!-- Drop and re-create the database schema on startup
        <property name="hbm2ddl.auto">update</property>
		 -->
        <!--   
        <mapping resource="com/hibernate/entity/user.hbm.xml"/>
        -->

		<mapping class="com.hibernate.entity.many2one.Group"/>
		<mapping class="com.hibernate.entity.many2one.User"/>
		 <!-- 
		<mapping class="com.hibernate.entity.many2many.Student"/>
		<mapping class="com.hibernate.entity.many2many.Teacher"/>
		 -->
    </session-factory>

</hibernate-configuration>

HibernateUtil.java 获取sessionFactory

package JTest;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {
	 private static final SessionFactory sessionFactory = buildSessionFactory();

	    private static SessionFactory buildSessionFactory() {
	        try {
	            // Create the SessionFactory from hibernate.cfg.xml
//	            return new Configuration().configure().buildSessionFactory(); 创建xml方法的sessionFactory
	            return new AnnotationConfiguration().configure().buildSessionFactory();
	        }
	        catch (Throwable ex) {
	            // Make sure you log the exception, as it might be swallowed
	            System.err.println("Initial SessionFactory creation failed." + ex);
	            throw new ExceptionInInitializerError(ex);
	        }
	    }

	    public static SessionFactory getSessionFactory() {
	        return sessionFactory;
	    }

	}

spring 上下文

ClassPathXmlApplicationContext  ctx =  new ClassPathXmlApplicationContext("beans.xml");
		UserService u = (UserService) ctx.getBean("userService");