利用 fastjson 的 toJSONStringWithDateFormat 方法 简便的从服务器端 把长整型的Date 格式化 为常见类型的时间

private void list(HttpServletRequest request, HttpServletResponse response) throws IOException {
		List> queryRecords = attendanceRecordServiceImpl.queryRecords();
		PrintWriter out = response.getWriter();
		String jsonString = JSON.toJSONStringWithDateFormat(queryRecords, JSON.DEFFAULT_DATE_FORMAT);
		out.write(jsonString);
	}