Spring连接MySQL、Oracle和SQL Server

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<!-- 连接MySQL-->
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/mytest"></property>
<property name="username" value="root"></property>
<property name="password" value="root"></property>

<!-- 连接Oracle
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"></property>
<property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl"></property>
<property name="username" value="scott"></property>
<property name="password" value="tiger"></property>

<property name="maxActive" value="100" />

<property name="maxIdle" value="20" />

<property name="maxWait" value="1000" />

<property name="defaultAutoCommit" value="true" />

<property name="removeAbandoned" value="true" />

<property name="removeAbandonedTimeout" value="120" />

<property name="validationQuery" value="select 1 from dual" />

<property name="testOnBorrow" value="true" />

-->
<!-- 连接SQL Server
<property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"></property>
<property name="url" value="jdbc:sqlserver://localhost:1433;databaseName=test"></property>
<property name="username" value="sa"></property>
<property name="password" value="yuji"></property>
-->
<property name="maxActive" value="100"></property>
<property name="maxIdle" value="30"></property>
<property name="maxWait" value="500"></property>
<property name="defaultAutoCommit" value="true"></property>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="hibernateProperties">