spring jdbctemplate操作数据库

                                                   @RunWith(SpringJUnit4Cla***unner.class)  @ContextConfiguration(locations = { "classpath*:/resource/springmvc-dao.xml" })  @TransactionConfiguration(defaultRollback = true)  public class TestSpringJDBC {        @Autowired    private JdbcTemplate template;    @Test    public void TestDB() throws SQLException{        System.err.println("template.getDataSource().getConnection()======="+template.getDataSource().getConnection());    }        @Test    public void queryUsers(){        String selSQL ="select  *  from usr_test " ;        List userlist= (List) template.query(selSQL, new BeanPropertyRowMapper(User.class));          System.err.println("userlist.Size()=========="+userlist.size());        for (int i = 0; i < userlist.size(); i++) {            User user=(User)userlist.get(i);                        System.err.println("第"+i+"名字是："+user.getName());        }    }}