java日期与时间戳相互转换大全



各种时间戳与日期之间相互转换的工具，，，这么多方法肯定有你想要的功能233333333

package com.crm.util;

import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;


/**
 * @author DingJiaCheng
 * */
public class DateFormatUtil {

    /**
     * 时间戳转日期
     * @param ms
     * @return
     */
    public static Date transForDate(Integer ms){
        if(ms==null){
            ms=0;
        }
        long msl=(long)ms*1000;
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date temp=null;
        if(ms!=null){
            try {
                String str=sdf.format(msl);
                temp=sdf.parse(str);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }
        return temp;
    }

    /**
     * 获取晚上9点半的时间戳
     *
     * @return
     */
    public static int getTimes(int day, int hour, int minute) {
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.DATE, day);
        cal.set(Calendar.HOUR_OF_DAY, hour);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, minute);
        cal.set(Calendar.MILLISECOND, 0);
        return (int) (cal.getTimeInMillis() / 1000);
    }

    /**
     * 获取当前时间往上的整点时间
     *
     * @return
     */
    public static int getIntegralTime() {
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.HOUR_OF_DAY, 1);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.MILLISECOND, 0);
        return (int) (cal.getTimeInMillis() / 1000);
    }

    public static int getIntegralTimeEnd() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 24);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.MILLISECOND, 0);
        return (int) (cal.getTimeInMillis() / 1000);
    }











    /**
     * 时间戳转日期
     * @param ms
     * @return
     */
    public static Date transForDate3(Integer ms){
        if(ms==null){
            ms=0;
        }
        long msl=(long)ms*1000;
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm");
        Date temp=null;
        if(ms!=null){
            try {
                String str=sdf.format(msl);
                temp=sdf.parse(str);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }
        return temp;
    }
    /**
     * 时间戳转日期
     * @param ms
     * @return
     */
    public static Date transForDate(Long ms){
        if(ms==null){
            ms=(long)0;
        }
        long msl=(long)ms*1000;
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date temp=null;
        if(ms!=null){
            try {
                String str=sdf.format(msl);
                temp=sdf.parse(str);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }
        return temp;
    }


    public static String transForDate1(Integer ms){
        String str = "";
        if(ms!=null){
            long msl=(long)ms*1000;
            SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

            if(ms!=null){
                try {
                    str=sdf.format(msl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return str;
    }
    public static String transForDate2(Integer ms){
        String str = "";
        if(ms!=null){
            long msl=(long)ms*1000;
            SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");

            if(ms!=null){
                try {
                    str=sdf.format(msl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return str;
    }

    public static String transForDate4(Integer ms){
        String str = "";
        if(ms!=null){
            long msl=(long)ms*1000;
            SimpleDateFormat sdf=new SimpleDateFormat("yyyy.MM.dd");

            if(ms!=null){
                try {
                    str=sdf.format(msl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return str;
    }


    public static String transForDate5(Integer ms){
        String str = "";
        if(ms!=null){
            long msl=(long)ms*1000;
            SimpleDateFormat sdf=new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");

            if(ms!=null){
                try {
                    str=sdf.format(msl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return str;
    }

    public static String transForDateInChinese(Integer ms){
        String str = "";
        if(ms!=null){
            long msl=(long)ms*1000;
            SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");

            if(ms!=null){
                try {
                    str=sdf.format(msl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return str;
    }

    /**
     * 日期转时间戳
     * @param date
     * @return
     */
    public static Integer transForMilliSecond(Date date){
        if(date==null) return null;
        return (int)(date.getTime()/1000);
    }

    /**
     * 获取当前时间戳
     * @return
     */
    public static Integer currentTimeStamp(){
        return (int)(System.currentTimeMillis()/1000);
    }

    /**
     * 日期字符串转时间戳
     * @param dateStr
     * @return
     */
    public static Integer transForMilliSecond(String dateStr){
        Date date = DateFormatUtil.formatDate(dateStr);
        return date == null ? null : DateFormatUtil.transForMilliSecond(date);
    }
    /**
     * 日期字符串转时间戳
     * @param dateStr
     * @return
     */
    public static Integer transForMilliSecond(String dateStr,String format){
        Date date = DateFormatUtil.formatDate(dateStr,format);
        return date == null ? null : DateFormatUtil.transForMilliSecond(date);
    }
    /**
     * 日期字符串转时间戳
     * @param dateStr
     * @param 格式 如"yyyy-mm-dd"
     * @return
     */
    public static Integer transForMilliSecondByTim(String dateStr,String tim){
        SimpleDateFormat sdf=new SimpleDateFormat(tim);
        Date date =null;
        try {
            date = sdf.parse(dateStr);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date == null ? null : DateFormatUtil.transForMilliSecond(date);
    }
    /**
     * 字符串转日期，格式为："yyyy-MM-dd HH:mm:ss"
     * @param dateStr
     * @return
     */
    public static Date formatDate(String dateStr){
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date result=null;
        try {
            result = sdf.parse(dateStr);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return result;
    }
    /**
     * 字符串转日期，格式为："yyyy-MM-dd HH:mm:ss"
     * @param dateStr
     * @return
     */
    public static Date formatDate(String dateStr,String format){
        SimpleDateFormat sdf=new SimpleDateFormat(format);
        Date result=null;
        try {
            result = sdf.parse(dateStr);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return result;
    }
    /**
     * 日期转字符串
     * @param date
     * @return
     */
    public static String formatDate(Date date){
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String result=null;
        result = sdf.format(date);
        return result;
    }
    /**
     * 日期转字符串
     * @param date
     * @return
     */
    public static String formatDate(Date date,String format){
        SimpleDateFormat sdf=new SimpleDateFormat(format);
        String result=null;
        result = sdf.format(date);
        return result;
    }
    /**
     * 时间戳格式化输出（httl模版用）
     *
     * @param ms        时间戳
     * @param format    格式化
     * @return
     */
    public static String transForDate(Integer ms, String format){
        String str = "";
        if(ms!=null){
            long msl=(long)ms*1000;
            SimpleDateFormat sdf=new SimpleDateFormat(format);
            if(!ms.equals(0)){
                try {
                    str=sdf.format(msl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return str;
    }

    /**
     * 取BigDecimal类型数的整数或小数部分（httl模版用）
     *
     * @param b 值
     * @param mode  模式 0取整 1去小数部分
     * @return
     */
    public static String splitBigDecimal(BigDecimal b, int mode) {
        DecimalFormat df = new DecimalFormat("0.00");
        String s = df.format(b);
        if(mode==0){
            return s.split("\\.")[0];
        }else {
            return "."+s.split("\\.")[1];
        }
    }

    /**
     * 计算两个日期之间差的天数（httl模版用）
     *
     * @param ts1   时间戳1
     * @param ts2   时间戳2
     * @return
     */
    public static int caculate2Days(Integer ts1, Integer ts2) {
        Date firstDate = DateFormatUtil.transForDate(ts1);
        Date secondDate = DateFormatUtil.transForDate(ts2);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(firstDate);
        int dayNum1 = calendar.get(Calendar.DAY_OF_YEAR);
        calendar.setTime(secondDate);
        int dayNum2 = calendar.get(Calendar.DAY_OF_YEAR);
        return Math.abs(dayNum1 - dayNum2);
    }

    /**
     * 给手机加密中间四位加星号
     *
     * @param mobile
     * @return
     */
    public String mobileSerect(String mobile){
        if(!StringUtils.isBlank(mobile)){
            int between = mobile.length()/2;
            mobile = mobile.substring(0, between-2)+"****"+mobile.substring(between+2, mobile.length());
        }
        return mobile;
    }

    /**
     * 给邮箱加密加星号
     *
     * @param email
     * @return
     */
    public String emailSerect(String email) {
        if(!StringUtils.isBlank(email)){
            int length = email.lastIndexOf("@");
            email = email.substring(0, 2)+"****"+email.substring(length-2, email.length());
        }
        return email;
    }

    /**
     * BigDecimal类型数据相加
     *
     * @param BigDecimal source
     * @param BigDecimal target
     * @return
     */
    public BigDecimal sumBigDicimal(BigDecimal source, BigDecimal target) {
        source = source.add(target);
        return source;
    }

    /**
     * BigDecimal类型数据相加
     *
     * @param BigDecimal source
     * @param BigDecimal target
     * @return
     */
    public BigDecimal sumBigDicimalAndDouble(BigDecimal source, Double target) {
        BigDecimal new_target = new BigDecimal(target);
        source = source.add(new_target);
        return source;
    }

    /**
     * BigDecimal类型数据相减
     *
     * @param BigDecimal source
     * @param BigDecimal target
     * @return
     */
    public BigDecimal subBigDicimal(BigDecimal source, BigDecimal target) {
        source = source.subtract(target);
        return source;
    }

    /**
     * 获取传入时间和当前时间的时间差
     * @return
     */
    public static Long getTimediff(int timeStamp){
        Date d1 = DateFormatUtil.transForDate(timeStamp);
        Date today = new Date();
        if(d1.getTime()
            return null;
        }
        return (d1.getTime()-today.getTime())/1000;
    }

    /**
     * 获取某周的第一天日期
     * @param week 0 当周 1 上一周 -1 下一周
     * @return
     */
    public static String weekFirstDay(int week){
        Calendar c1 = Calendar.getInstance();
        int dow = c1.get(Calendar.DAY_OF_WEEK);
        c1.add(Calendar.DATE, -dow-7*(week-1)-5 );
        String d1 = new SimpleDateFormat("yyyy-MM-dd").format(c1.getTime());
        return d1+" 00:00:00";
    }

    /**
     * 当前时间加一年
     */
    public static String addYear(int startTime){
        Date firstDate = DateFormatUtil.transForDate(startTime);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(firstDate);
        calendar.add(Calendar.YEAR,1);
        String d1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime());
        return d1;
    }

    /**
     * 获取某周的最后一天日期
     * @param week
     * @return
     */
    public static String weekLastDay(int week){
        Calendar c1 = Calendar.getInstance();
        int dow = c1.get(Calendar.DAY_OF_WEEK);
        c1.add(Calendar.DATE, -dow-7*(week-1)+1);
        String d1 = new SimpleDateFormat("yyyy-MM-dd").format(c1.getTime());
        return d1+" 23:59:59";
    }

    /**
     * 和当前时间比对
     * @return
     */
    public static boolean greaterThanNow(int timeStamp){
        Date d1 = DateFormatUtil.transForDate(timeStamp);
        Date today = new Date();
        if(d1.getTime()>=today.getTime()){
            return true;
        }
        return false;
    }



    /**
     * HH:mm:ss格式时间转换为1970-01-01日的时间戳（也就是只有时间没有日期的情况要求使用时间戳表示时间）
     * @author DingJiaCheng
     * */
    public static int transFromTime(String time){
        return transForMilliSecond("1970-01-01 "+time,"yyyy-mm-dd HH:mm:ss");
    }

    /**
     * 时间戳转换为HH：mm：ss格式时间(日期去除)
     * @author DingJiaCheng
     * */
    public static String transToTime(int time){
        String s = new String(transForDate1(time));
        String ss[] = s.split(" ");
        return ss[1];
    }

    public static int transToChuo(String dateString){
        SimpleDateFormat simpleDateFormat =new SimpleDateFormat("yyyy-MM-dd");
        int res = 0;
        try {
            Date date=simpleDateFormat .parse(dateString);
            res = (int) date.getTime();
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return res;
    }

    public static void main(String[] args) {

        //System.out.println(getIntegralTimeEnd());
        System.out.println(transForDate2(transForMilliSecond("2015-02-25 00:00:00")));
        //System.out.println(transForMilliSecond("2016-01-25","yyyy-mm-dd"));
        //System.out.println(transForDate1(transForMilliSecond("1970-01-01 00:00:00","yyyy-mm-dd HH:mm:ss")));
        //System.out.println(currentTimeStamp());
        //System.out.println(transForDate(currentTimeStamp()));
        //System.out.println(new Date());
        //System.out.println(DateUtils.getDate());
        System.out.println(transFromTime("00:00:01"));
        System.out.println(transToTime(transFromTime("15:01:13")));
    }
}