com.ck.tools.TimeUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of common Show documentation

There is a newer version: 2.5.3.RELEASE

package com.ck.tools;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class TimeUtils {

    private static final long m = 60 * 1000L;//分
    private static final long hour = 3600 * 1000L;//小时
    private static final long day = 24 * hour;//天

    /***
     * 时间转换成格式化
     *
     * @param date Date
     * @param format TimeFormat
     * @return String
     */
    public static String timeToString(Date date, TimeFormat format) {
        SimpleDateFormat sdf = new SimpleDateFormat(format.getValue());
        String dateStr = sdf.format(date.getTime());
        return dateStr;
    }

    /***
     * 字符串转日期
     * @param time String
     * @param format TimeFormat
     * @return Date
     */
    public static Date stringToDate(String time, TimeFormat format){
        SimpleDateFormat sdf = new SimpleDateFormat(format.getValue());
        try {
            return sdf.parse(time);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return null;
    }

    /***
     * 日期时间转换成文字
     * @param date Date
     * @return 刚刚, n分钟前, n小时前, n天前
     */
    public static String getDateTimeString(Date date) {
        if (date == null) {
            throw new NullPointerException();
        }
        Date currentDate = new Date();
        long cha = Math.abs(date.getTime() - currentDate.getTime());
        long hours = cha / hour;
        if (hours < 1) {
            if (cha / m <= 0) {
                return "刚刚";
            }
            return cha / m + "分钟前";
        }
        if (hours < 24) {
            return cha / hour + "小时前";
        }
        if (hours <= 72) {
            int nn = Integer.valueOf(cha / day + "");
            if (cha % day > 0) {
                nn++;
            }
            return nn + "天前";
        }
        return timeToString(date, TimeFormat.YYYYMMDDHHMM);
    }
}