Java时间类型相互转化

1，date转 LocalDateTime

       Date date = new Date(); 
        // 将 Date 对象转化为 LocalDateTime 对象 
        LocalDateTime localDateTime = DateUtil.toLocalDateTime(date); 

2，LocalDateTime转date
Date date = DateUtil.date(localDateTime);

3，string 转date

String dateStr = "2017-03-01";
Date date = DateUtil.parse(dateStr, "yyyy-MM-dd");

4，data转string
//结果 2017/03/01
String format = DateUtil.format(date, "yyyy/MM/dd");

5，时间戳转LocalDateTime
long timestamp = System.currentTimeMillis();
DateUtil.of(timestamp).toLocalDateTime();