DateUtil时间工具类

package com.jeeplus.modules.utils;

/**
 * <p>Title:ϵͳʹ��ʱ��ת�������� </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: ���¿Ƽ�</p>
 *
 * @author unascribed
 * @version 1.0
 */

import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

public class DateUtil {
    /**
     * ȡ��ϵͳ��ǰʱ��,����ΪTimestamp
     *
     * @return Timestamp
     */
    public static Timestamp getNowTimestamp() {
        Date d = new Date();
        Timestamp numTime = new Timestamp(d.getTime());

        return numTime;
    }

    /**
     * ȡ��ϵͳ�ĵ�ǰʱ��,����Ϊjava.sql.Date
     *
     * @return java.sql.Date
     */
    public static java.sql.Date getNowDate() {
        Date d = new Date();
        return new java.sql.Date(d.getTime());
    }

    /**
     * ��Timestamp����ת��Ϊyyyy/mm/dd���͵��ַ���
     *
     * @param date
     * @param strDefault
     * @return
     */
    public static String TimestampToString(Timestamp date, String strDefault) {
        String strTemp = strDefault;
        if (date != null) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
            strTemp = formatter.format(date);
        }
        return strTemp;
    }

    /**
     * ��Timestamp����ת��Ϊyyyy/mm/dd���͵��ַ���,���Ϊnull,��Ż�""
     *
     * @param date
     * @return
     */
    public static String TimestampToString(Timestamp date) {
        return TimestampToString(date, null);
    }

    /**
     * date��ת��ΪString ��ʽΪyyyy/MM/dd
     *
     * @param date
     * @param strDefault
     * @return
     */
    public static String DateToString(java.sql.Date date, String strDefault) {
        String strTemp = strDefault;
        if (date != null) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
            strTemp = formatter.format(date);
        }
        return strTemp;
    }

    public static String DateToString(java.sql.Date date) {
        return DateToString(date, null);
    }

    /**
     * Stringת��ΪTimestamp����
     *
     * @param strDefault
     * @param date
     * @return
     */
    public static Timestamp StringToTimestamp(String strDate) {
        if (strDate != null && !strDate.equals("")) {
            try {
                SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
                Date d = formatter.parse(strDate);
                Timestamp numTime = new Timestamp(d.getTime());
                return numTime;
            } catch (Exception e) {
                return null;
            }
        } else {
            return null;
        }
    }

    /**
     * ϵͳʱ��ת����Timestamp����
     * @param strDate
     * @return
     */
    public static Date timeToTimestamp(String strDate) {
        if (strDate != null && !strDate.equals("")) {
            try {
                SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                Date date = formatter.parse(strDate);
                //Timestamp numTime = new Timestamp(d.getTime());
                return date;
            } catch (Exception e) {
                return null;
            }
        } else {
            return null;
        }
    }

    /**
     * ϵͳ����ת����Timestamp����
     * @param strDate
     * @return
     */
    public static Timestamp dateToTimestamp(String strDate) {
        if (strDate != null && !strDate.equals("")) {
            try {
                SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
                Date d = formatter.parse(strDate);
                Timestamp numTime = new Timestamp(d.getTime());
                return numTime;
            } catch (Exception e) {
                return null;
            }
        } else {
            return null;
        }
    }

    /**
     * Stringת��Ϊjava.sql.date���ͣ�
     *
     * @param strDate
     * @return
     */
    public static java.sql.Date StringToDate(String strDate) {
        if (strDate != null && !strDate.equals("")) {
            try {
                SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
                Date d = formatter.parse(strDate);
                java.sql.Date numTime = new java.sql.Date(d.getTime());
                return numTime;
            } catch (Exception e) {
                return null;
            }
        } else {
            return null;
        }
    }

    /**
     * ����ǰʱ��ת�����ַ���
     *
     * @return
     */
    public static String currDateToStr() {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            return formatter.format(new Date());
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }
    public static String currDateToStr4() {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
            return formatter.format(new Date());
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }

        public static String currDateToStr1() {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("HHmmss");
            return formatter.format(new Date());
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }

    public static String currDateToStr5() {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
            return formatter.format(new Date());
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }

    public static String currDateToStr6(Date date ) {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
            return formatter.format(date);
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }
    public static String currDateToStr2() {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
            return formatter.format(new Date());
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }

    public static String currDateToStr3() {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            return formatter.format(new Date());
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }

    public static Date getNowDate1() throws ParseException {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(currentTime);
        Date currentTime_2 =formatter.parse(dateString);
        return currentTime_2;
    }


    public static String DateToStr(Date date) {

        try {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            return formatter.format(date);
        } catch (Exception e) {
            // TODO: handle exception
            return null;
        }
    }

    public static String  dateNext(){
        SimpleDateFormat df = new SimpleDateFormat("HHmmss");
        Calendar c = new GregorianCalendar();
        Date date = new Date();
        System.out.println("系统当前时间      ："+df.format(date));
        c.setTime(date);//设置参数时间
        c.add(Calendar.SECOND,60);//把日期往后增加SECOND 秒.整数往后推,负数往前移动
        date=c.getTime(); //这个时间就是日期往后推一天的结果
        String str = df.format(date);
        return  str;
    }
    /**
     * ��ʽ���ַ���
     * @param str
     * @return
     */
    public static String StringCoventor(String str) {
        String s[] = str.split("/");
        return s[2] + "-" + s[1] + "-" + s[0];
    }

    /**
     * �жϵ�ǰʱ���Ƿ���ʱ���
     * @return
     */
    public static String[] ifTimesLice() {
//        java.util.Date []times=new java.util.Date[2];
        String[] mydate = new String[2];
        Date date = new Date();
//        String fristtime;
//        String endtime;
        if (date.after(DateUtil.timeToTimestamp("2009-08-20 00:00:00")) && date.before(DateUtil.timeToTimestamp("2009-09-20 23:59:59"))) {
            mydate[0] = "2009-08-20 00:00:00";
            mydate[1] = "2009-09-20 23:59:59";
        } else if (date.after(DateUtil.timeToTimestamp("2009-09-21 00:00:00")) && date.before(DateUtil.timeToTimestamp("2009-10-20 23:59:59"))) {
            mydate[0] = "2009-09-21 00:00:00";
            mydate[1] = "2009-10-20 23:59:59";
        }
//        java.util.Date time= new java.util.Date();
//        java.util.Date fristtime1=new java.util.Date(20090820);
//        java.util.Date endtime1=new java.util.Date(20090920);
//        java.util.Date fristtime2=new java.util.Date(20090921);
//        java.util.Date endtime2=new java.util.Date(20091020);
//        if(time.after(fristtime1)&&time.before(endtime1)){
//          times[0]=fristtime1;
//          times[1]=endtime1;
//        }else if(time.after(fristtime1)&&time.before(endtime1)){
//          times[0]=fristtime2;
//          times[1]=endtime2;                 
//        }
        return mydate;
    }

    /***************************************************************************
     * �������ƣ�getDate ������ܣ����ص�ǰ���� ****-**-**��ʽ ���� ���� ���� ��2004/10/30
     * �޸���-------�޸���--------��Ҫ--------------------------
     **************************************************************************/
    public static String getDate() {
        String year, month, date;
        Calendar now = Calendar.getInstance();
        year = (now.get(Calendar.YEAR) < 1900 ? ""
                + (1900 + now.get(Calendar.YEAR)) : "" + now.get(Calendar.YEAR));
        month = (now.get(Calendar.MONTH) < 9 ? "0"
                + (now.get(Calendar.MONTH) + 1) : ""
                + (now.get(Calendar.MONTH) + 1));
        date = (now.get(Calendar.DATE) < 10 ? "0" + now.get(Calendar.DATE) : ""
                + now.get(Calendar.DATE));
        return "" + year + "-" + month + "-" + date;
    }

    /***************************************************************************
     * �������ƣ�getDateOff ������ܣ����ص�ǰ����ǰ���ʱ�� ****-**-**��ʽ ���� ��type
     * 0-year,1-month,2-day; off ƫ����ֵ ���� ��2004/10/30
     * �޸���-------�޸���--------��Ҫ--------------------------
     **************************************************************************/
    public static String getDateOff(int type, int off) {
        String year, month, date;
        Calendar now = Calendar.getInstance();
        if (type == 0)
            now.add(Calendar.YEAR, off);
        else if (type == 1)
            now.add(Calendar.MONTH, off);
        else if (type == 3)
            now.add(Calendar.DATE, off);
        year = (now.get(Calendar.YEAR) < 1900 ? ""
                + (1900 + now.get(Calendar.YEAR)) : "" + now.get(Calendar.YEAR));
        month = (now.get(Calendar.MONTH) < 9 ? "0"
                + (now.get(Calendar.MONTH) + 1) : ""
                + (now.get(Calendar.MONTH) + 1));
        date = (now.get(Calendar.DATE) < 10 ? "0" + now.get(Calendar.DATE) : ""
                + now.get(Calendar.DATE));
        return "" + year + "-" + month + "-" + date;
    }

    /***************************************************************************
     * �������ƣ�getTime ������ܣ����ص�ǰ���� ****-**-** **:**��ʽ ���� ���� ���� ��2004/10/30
     * �޸���-------�޸���--------��Ҫ--------------------------
     **************************************************************************/
    public static String getTime() {
        String result, year, month, date, hour, minute;
        Calendar now = Calendar.getInstance();
        year = (now.get(Calendar.YEAR) < 1900 ? ""
                + (1900 + now.get(Calendar.YEAR)) : "" + now.get(Calendar.YEAR));
        month = (now.get(Calendar.MONTH) < 9 ? "0"
                + (now.get(Calendar.MONTH) + 1) : ""
                + (now.get(Calendar.MONTH) + 1));
        date = (now.get(Calendar.DATE) < 9 ? "0" + now.get(Calendar.DATE) : ""
                + now.get(Calendar.DATE));
        hour = (now.get(Calendar.HOUR_OF_DAY) < 10 ? "0"
                + now.get(Calendar.HOUR_OF_DAY) : ""
                + now.get(Calendar.HOUR_OF_DAY));
        minute = (now.get(Calendar.MINUTE) < 10 ? "0"
                + now.get(Calendar.MINUTE) : "" + now.get(Calendar.MINUTE));
        result = "" + year + "-" + month + "-" + date + " " + hour + ":"
                + minute;
        return result;
    }

    /**
     * 字符串转unix时间戳
     * @param datetime
     * @return
     */
    public static Timestamp stringToTimestamp(String datetime) {
        DateFormat df = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        //1361325960
        Date d = null;
        try {
            d = df.parse(datetime);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        Timestamp numTime = new Timestamp(d.getTime());
        return numTime;
    }

    /*
     * 将时间转换为时间戳
     */
    public static long dateToStamp(String s) throws ParseException {
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        Date date = simpleDateFormat.parse(s);
        long ts = date.getTime()/1000;
        return ts;
    }

    /*

     * 将时间戳转换为时间

     */
    public static String stampToDate(String s) {
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        long lt = new Long(s);
        Date date = new Date(lt);
        res = simpleDateFormat.format(date);
        return res;
    }

    /**
     * 返回当前时间UNIX时间戳
     * @return
             */
    public static long currentToStamp(){
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date d = new Date();
        String t = df.format(d);
        long epoch = 0;
        try {
            epoch = df.parse(t).getTime() / 1000;
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return epoch;
    }

    public static void main(String[] args) throws ParseException {
        System.out.println(dateNext());
    }
}