	@Test
	public void testQueryForMapList() {

		List<Map<String, Object>> ls = dao.queryForMapList("select * from cache_push  where show_time <= ? AND status = ? LIMIT 180;", new Date(), 1);
		for (Map<String, Object> map : ls) {
			System.out.println(map.get("push_id"));
		}
	}