使用hutool工具类转换时间

System.out.println(DateUtil.today());
System.out.println(DateUtil.formatTime(DateUtil.date()));

System.out.println(DateUtil.format(DateUtil.date(), "yyyyMMdd"));
System.out.println(DateUtil.format(DateUtil.date(), "HHmmss"));

System.out.println(DateUtil.date());
System.out.println(DateTime.now().toString());

打印结果如下