Hibernate设置使用Tomcat中的连接池

1.修改Tomcat的context.xml文件

<Context reloadable="true">
    <Resource name="jdbc/oracle" auth="Container"
                type="javax.sql.DataSource" maxActive="100"
                maxIdle="30" maxWait="10000" username="scott"
                password="tiger" deiverClassName="oracle.jdbc.Oracle.Driver"
                url="jdbc:oracle:thin:@localhost:1521:test"/>
    <Resource name="jdbc/mysal" auth="Container"
                type="javax.sql.DataSource" maxActive="100"
                maxIdle="30" maxWait="10000" username="root"
                password="mysqladmin" deiverClassName="com.mysql.jdbc.Driver"
                url="jdbc:mysql://localhost/test"/>
</Context>

2.修改hibernate.cfg.xml配置文件

<?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.datasource">java:comp/env/jdbc/oracle</property>

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

        <!-- Enable Hibernate's current session context -->
        <property name="current_session_context_class">org.hibernate.context.ManagedSessionContext</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>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create</property>

        <mapping resource="org/hibernate/tutorial/domain/Person.hbm.xml"/>

    </session-factory>

</hibernate-configuration>