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 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")));
	}
}