用Spring去产生数据源对象

SpringXML文件中的配置：

public class ts {
    @Test
    public void fun() throws PropertyVetoException, SQLException {
        ApplicationContext context =
                new ClassPathXmlApplicationContext("applicationContext.xml");
        ComboPooledDataSource dataSource = context.getBean("c3p0", ComboPooledDataSource.class);
        Connection connection = dataSource.getConnection();
        System.out.println(connection);
        connection.close();
    }
}