Hit the jump for the xml.

<beans>
	<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName" value="jdbc/DB2"/>
        <property name="lookupOnStartup" value="false"/>
        <property name="cache" value="true" />
        <property name="proxyInterface"	value="javax.sql.DataSource" />
    </bean>

    <!-- Hibernate SessionFactory -->
	<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource"/>
		<property name="mappingResources">
			<list>
				<value>User.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
		    <props>
		      <prop key="hibernate.dialect">org.hibernate.dialect.DB2Dialect</prop>
		      <prop key="hibernate.show_sql">true</prop>
		      <!-- 			IBM WAS SPECIFIC			 -->
		      <prop key="hibernate.connection.datasource">jdbc/DB2</prop>
		      <prop key="hibernate.transaction.factory_class">org.hibernate.transaction.CMTTransactionFactory</prop>
			  <prop key="hibernate.transaction.manager_lookup_class">org.hibernate.transaction.WebSphereExtendedJTATransactionLookup</prop>
			  <!-- 			/END IBM WAS SPECIFIC		 -->
		    </props>
		</property>
	</bean>

	<bean id="transactionManager"
		class="org.springframework.transaction.jta.JtaTransactionManager">
			<property name="autodetectTransactionManager" value="false" />
	</bean>
</beans>