Magento切换数据库，使用不同数据库

<config>

<global>

<install>

<date><![CDATA[Tue, 05 Jul 2011 03:23:52 +0000]]></date>

</install>

<crypt>

<key><![CDATA[80eb4be66ce28df745f27c75f2604d33]]></key>

</crypt>

<disable_local_modules>false</disable_local_modules>

<resources>

<db>

<table_prefix><![CDATA[]]></table_prefix>

</db>

<default_setup>

<connection>

<host><![CDATA[localhost]]></host>

<username><![CDATA[root]]></username>

<password><![CDATA[]]></password>

<dbname><![CDATA[hello]]></dbname>

<active>1</active>

</connection>

</default_setup>

<vip_space_read>

<connection>

<host><![CDATA[localhost]]></host>

<username><![CDATA[root]]></username>

<password><![CDATA[]]></password>

<dbname><![CDATA[hello_dev_test]]></dbname>

<model>mysql4</model>

<initStatements>SET NAMES utf8</initStatements>

<type>pdo_mysql</type>

<active>1</active>

</connection>

</vip_space_read>

</resources>

<session_save><![CDATA[files]]></session_save>

</global>

<admin>

<routers>

<adminhtml>

<args>

<frontName><![CDATA[hello_admin]]></frontName>

</args>

</adminhtml>

</routers>

</admin>

</config>

{

protected $_logFile = 'vip.adapter.log';

protected function _construct()

{

$this->_setResource(array('read' =>'vip_space_read', 'write'

=>'vip_space_read'));

}