com.b5m.user.frame.util.DateUtils.java Source code

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Here is the source code for com.b5m.user.frame.util.DateUtils.java

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/**
 * B5mDateUtils.java
 *
 *   ?
 *   ??B5mDateUtils
 *
 *   ver     ?       ?           ?
 * 
 *   V1.00  '12-05-24  iZENEsoft    wiley.wang       ?
 *
 * Copyright (c) 2009 iZENEsoft Business Software corporation All Rights Reserved.
 * LICENSE INFORMATION
 */
package com.b5m.user.frame.util;

import org.apache.commons.lang.StringUtils;

import java.io.Serializable;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 * ?
 * @author Wiley
 * @version v1.0
 */
public class DateUtils implements Serializable {

    private static final long serialVersionUID = 6622278926579307357L;

    public static final String DATE_STR_FORMATTER = "yyyy-MM-dd";

    public static final int DAY_SECONDS = 24 * 60 * 60;

    public static String getToday() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");//ComConstants.SDF_YYYYMMDDHHMMSS;
        return sdf.format(new Date());
    }

    public static String getDateTime() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssMs");//ComConstants.SDF_YYYYMMDDHHMMSS;
        return sdf.format(new Date());
    }

    public static String getDateTime2() {
        SimpleDateFormat sdf = new SimpleDateFormat("MMddHHmmssMs");//ComConstants.SDF_YYYYMMDDHHMMSS;
        return sdf.format(new Date());
    }

    public static synchronized String getInviteCodeByNowDate() {
        SimpleDateFormat sdf = new SimpleDateFormat("MMddHHmmssMs");//ComConstants.SDF_YYYYMMDDHHMMSS;
        String dateStr = sdf.format(new Date());
        return getRandomInteger() + dateStr;
    }

    public static String getRandomInteger() {
        int temp = (int) (Math.random() * 9999);
        return String.valueOf(temp);
    }

    public static Date String2Date(String dateStr) {
        if (StringUtils.isBlank(dateStr)) {
            return null;
        }
        return String2Date(dateStr, "yyyyMMdd");
    }

    public static String Date2String(Date date) {
        if (null == date) {
            return "";
        }
        return Date2String(date, "yyyy-MM-dd");
    }

    public static Date String2Date(String dateStr, String DateFormat) {
        SimpleDateFormat sdf = new SimpleDateFormat(DateFormat);
        try {
            return sdf.parse(dateStr);
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String Date2String(Date date, String DateFormat) {
        SimpleDateFormat sdf = new SimpleDateFormat(DateFormat);
        try {
            return sdf.format(date);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }

    }

    /**
     * ?
     * @param deadline ,?yyyyMMddHHmmss
     * @return
     */
    public static String getRemainingTime(String endDate) {
        String rtn = "";
        if (StringUtils.isBlank(endDate))
            return rtn;
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");//ComConstants.SDF_YYYYMMDDHHMMSS;//???
        try {
            Date deadline = sdf.parse(endDate);
            long remaining = deadline.getTime() - System.currentTimeMillis();
            //long remaining=lngDeadline-System.currentTimeMillis();
            if (remaining > 0) {
                //int ms = (int) (remaining % 1000);
                remaining /= 1000;
                //int sc = (int) (remaining % 60);
                remaining /= 60;
                int mn = (int) (remaining % 60);
                remaining /= 60;
                int hr = (int) (remaining % 24);
                long dy = (int) remaining / 24;
                rtn = dy + "" + hr + "?" + mn + "";//+ sc + "";
            } else {
                rtn = "";
            }
        } catch (ParseException e) {

        }
        return rtn;
    }

    /**
     * ? ? 2013-05-31
     * @return
     */
    public static String getCurrentDay() {
        return getBeforeOrAfterDay(0);
    }

    /**
     * ???? ? 2013-05-31
     * @return
     */
    public static String getAfterToday() {
        return getBeforeOrAfterDay(1);
    }

    /**
     * ?date ?? ? 2013-05-31
     * @param date 
     * @return
     */
    public static String getAfterToday(Date date) {
        return getBeforeOrAfterDay(date, 1);
    }

    /**
     * ????? ? 2013-05-31
     * @return
     */
    public static String getOneWeekBefore() {
        return getBeforeOrAfterDay(-7);
    }

    /**
     * ? ?  ? daycount 
     * @param daycount
     * @return
     */
    public static String getBeforeOrAfterDay(int daycount) {
        Date dayBefore = new Date();
        if (daycount != 0) {
            Calendar calendar = Calendar.getInstance(); //
            calendar.setTime(new Date());//?
            calendar.add(Calendar.DAY_OF_MONTH, daycount); //  ? + dayCount
            dayBefore = calendar.getTime(); //? + dayCount 
        }
        return Date2String(dayBefore);
    }

    public static String getBeforeOrAfterDay(Date date, int daycount) {
        if (daycount != 0) {
            Calendar calendar = Calendar.getInstance(); //
            calendar.setTime(date);//?
            calendar.add(Calendar.DAY_OF_MONTH, daycount); //  ? + dayCount
            date = calendar.getTime(); //? + dayCount 
        }
        return Date2String(date);
    }

    public static Date getBeforeOrAfterDayToDate(Date date, int daycount) {
        Calendar calendar = null;
        if (daycount != 0) {
            calendar = Calendar.getInstance(); //
            calendar.setTime(date);//?
            calendar.add(Calendar.DAY_OF_MONTH, daycount); //  ? + dayCount
        }
        return calendar.getTime();
    }

    /**
     *  ?  
     * @return int
     */
    public static int remainSecondsInToday() {
        int remainSeconds = DAY_SECONDS;
        Date date = new Date();
        int currentTimeSendcods = date.getHours() * 3600 + date.getMinutes() * 60 + date.getSeconds();
        remainSeconds = DAY_SECONDS - currentTimeSendcods;
        return remainSeconds;
    }

    public static void main(String[] args) throws Exception {

        System.out.println(DateUtils.Date2String(new Date(), "yyyy-MM-dd HH:mm:ss"));
        //1986-07-05                    520873200000
        //System.out.println(getDateTime2());
        //System.out.println(remainSecondsInToday());
    }

}