FASTJSON 增加对泛型的支持

	Map<String, Date> map = new HashMap<String, Date>();
		map.put("now", new Date());

		String str = JSON.toJSONString(map,SerializerFeature.WriteClassName);
		System.out.println(str);
		Map<String, Date> result = JSON.parseObject(str, map.getClass());
		System.out.println(result.get("now").getClass());