LocalDateTime相关处理，获得零点以及24点值，最近五分钟点位，与Date互转，时间格式

最近一直使用LocalDateTime，总是忘记怎么转换，仅此记录一下java

import java.time.Instant; import java.time.LocalDateTime; import java.time.LocalTime; import java.time.ZoneId; import java.time.format.DateTimeFormatter; import java.util.Date; public class Test { public static void main(String[] args) { LocalDateTime now = LocalDateTime.now(); System.out.println("当前时间:  "+now); //时间格式
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"); System.out.println("formate: "+ now.format(formatter)); //当天的零点
        System.out.println("当天的零点:  "+LocalDateTime.of(now.toLocalDate(), LocalTime.MIN)); //当天的最后时间
        System.out.println("当天的最后时间:  "+LocalDateTime.of(now.toLocalDate(), LocalTime.MAX)); //最近的五分钟点位
        Integer minute = now.getMinute(); minute = minute/5*5; System.out.println("最近的五分钟点位:  "+LocalDateTime.of(now.getYear(), now.getMonth(), now.getDayOfMonth(), now.getHour(), minute, 0)); //Date转为LocalDateTime
        Date date = new Date(); Instant instant = date.toInstant(); ZoneId zoneId = ZoneId.systemDefault(); System.out.println("Date转为LocalDateTime: "+instant.atZone(zoneId).toLocalDateTime()); } }