配置多个数据源时Spring Aop不生效。。无法自动切换数据源。

public class WorkOrderTest {

    public static void main(String[] args) {

        ApplicationContext applicationContext=new ClassPathXmlApplicationContext(new String[]{"spring-mvc.xml","spring-mybatis.xml"});

        WorkOrderService workOrderService=(WorkOrderService) applicationContext.getBean("workOrderService");

//        MultipleDataSource.setDataSourceKey("vso1DataSource");    //这一句是手动切换数据源的代码。手动切换没问题。

        Long id=100000004220380L;

        WorkOrder workOrder= workOrderService.selectByPrimaryKey(id);

        System.out.println("===================>BillId:"+workOrder.getBillId());

    }

}