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()<today.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")));}}