每间隔15分钟生成一个时间戳-白红宇

每间隔15分钟生成一个时间戳

阅读量：6825 次

发布时间：2019-06-26

本文共 1619 字，大约阅读时间需要 5 分钟。

import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import java.util.Date;import java.util.List; public class Test {    public static void main(String[] args) {        Date date = new Date();        List
     
       ds = test(date);                 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        for (Date d : ds) {            System.out.println(sdf.format(d));        }    }         static List
      
        test(Date date) {        Date start = dayStartDate(date);//转换为天的起始date        Date nextDayDate = nextDay(start);//下一天的date                 List
       
         result = new ArrayList
        
         ();        while (start.compareTo(nextDayDate) < 0) {            result.add(start);            //日期加15分钟            start = addFiveMin(start, 15);        }                 return result;    }     private static Date addFiveMin(Date start, int offset) {        Calendar c = Calendar.getInstance();        c.setTime(start);        c.add(Calendar.MINUTE, offset);        return c.getTime();    }     private static Date nextDay(Date start) {        Calendar c = Calendar.getInstance();        c.setTime(start);        c.add(Calendar.DATE, 1);        return c.getTime();    }     private static Date dayStartDate(Date date) {        Calendar c = Calendar.getInstance();        c.setTime(date);        c.set(Calendar.HOUR_OF_DAY, 0);        c.set(Calendar.MINUTE, 0);        c.set(Calendar.SECOND, 0);        c.set(Calendar.MILLISECOND, 0);        return c.getTime();    }}