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890天前package com.file.action; |
import java.text.ParseException; |
import java.text.SimpleDateFormat; |
import java.util.Calendar; |
import java.util.Date; |
public class DateUtils { |
private static final long ONE_MINUTE = 60; |
private static final long ONE_HOUR = 3600; |
private static final long ONE_DAY = 86400; |
private static final long ONE_MONTH = 2592000; |
private static final long ONE_YEAR = 31104000; |
public static Calendar calendar = Calendar.getInstance(); |
/** |
* |
* @return yyyy-mm-dd |
* 2012-12-25 |
*/ |
public static String getDate() { |
return getYear() + "-" + getMonth() + "-" + getDay(); |
} |
/** |
* @param format |
* @return |
* yyyy年MM月dd HH:mm |
* MM-dd HH:mm 2012-12-25 |
* |
*/ |
public static String getDate(String format) { |
SimpleDateFormat simple = new SimpleDateFormat(format); |
return simple.format(calendar.getTime()); |
} |
/** |
* |
* @return yyyy-MM-dd HH:mm |
* 2012-12-29 23:47 |
*/ |
public static String getDateAndMinute() { |
SimpleDateFormat simple = new SimpleDateFormat("yyyy-MM-dd HH:mm"); |
return simple.format(calendar.getTime()); |
} |
/** |
* |
* @return |
* yyyy-MM-dd HH:mm:ss |
* 2012-12-29 23:47:36 |
*/ |
public static String getFullDate() { |
SimpleDateFormat simple = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
return simple.format(calendar.getTime()); |
} |
/** |
* 距离今天多久 |
* @param date |
* @return |
* |
*/ |
public static String fromToday(Date date) { |
Calendar calendar = Calendar.getInstance(); |
calendar.setTime(date); |
long time = date.getTime() / 1000; |
long now = new Date().getTime() / 1000; |
long ago = now - time; |
if (ago <= ONE_HOUR) |
return ago / ONE_MINUTE + "分钟前"; |
else if (ago <= ONE_DAY) |
return ago / ONE_HOUR + "小时" + (ago % ONE_HOUR / ONE_MINUTE) |
+ "分钟前"; |
else if (ago <= ONE_DAY * 2) |
return "昨天" + calendar.get(Calendar.HOUR_OF_DAY) + "点" |
+ calendar.get(Calendar.MINUTE) + "分"; |
else if (ago <= ONE_DAY * 3) |
return "前天" + calendar.get(Calendar.HOUR_OF_DAY) + "点" |
+ calendar.get(Calendar.MINUTE) + "分"; |
else if (ago <= ONE_MONTH) { |
long day = ago / ONE_DAY; |
return day + "天前" + calendar.get(Calendar.HOUR_OF_DAY) + "点" |
+ calendar.get(Calendar.MINUTE) + "分"; |
} else if (ago <= ONE_YEAR) { |
long month = ago / ONE_MONTH; |
long day = ago % ONE_MONTH / ONE_DAY; |
return month + "个月" + day + "天前" |
+ calendar.get(Calendar.HOUR_OF_DAY) + "点" |
+ calendar.get(Calendar.MINUTE) + "分"; |
} else { |
long year = ago / ONE_YEAR; |
int month = calendar.get(Calendar.MONTH) + 1;// JANUARY which is 0 so month+1 |
return year + "年前" + month + "月" + calendar.get(Calendar.DATE) |
+ "日"; |
} |
} |
/** |
* 距离截止日期还有多长时间 |
* |
* @param date |
* @return |
*/ |
public static String fromDeadline(Date date) { |
long deadline = date.getTime() / 1000; |
long now = (new Date().getTime()) / 1000; |
long remain = deadline - now; |
if (remain <= ONE_HOUR) |
return "只剩下" + remain / ONE_MINUTE + "分钟"; |
else if (remain <= ONE_DAY) |
return "只剩下" + remain / ONE_HOUR + "小时" |
+ (remain % ONE_HOUR / ONE_MINUTE) + "分钟"; |
else { |
long day = remain / ONE_DAY; |
long hour = remain % ONE_DAY / ONE_HOUR; |
long minute = remain % ONE_DAY % ONE_HOUR / ONE_MINUTE; |
return "只剩下" + day + "天" + hour + "小时" + minute + "分钟"; |
} |
} |
/** |
* 距离今天的绝对时间 |
* |
* @param date |
* @return |
*/ |
public static String toToday(Date date) { |
long time = date.getTime() / 1000; |
long now = (new Date().getTime()) / 1000; |
long ago = now - time; |
if (ago <= ONE_HOUR) |
return ago / ONE_MINUTE + "分钟"; |
else if (ago <= ONE_DAY) |
return ago / ONE_HOUR + "小时" + (ago % ONE_HOUR / ONE_MINUTE) + "分钟"; |
else if (ago <= ONE_DAY * 2) |
return "昨天" + (ago - ONE_DAY) / ONE_HOUR + "点" + (ago - ONE_DAY) |
% ONE_HOUR / ONE_MINUTE + "分"; |
else if (ago <= ONE_DAY * 3) { |
long hour = ago - ONE_DAY * 2; |
return "前天" + hour / ONE_HOUR + "点" + hour % ONE_HOUR / ONE_MINUTE |
+ "分"; |
} else if (ago <= ONE_MONTH) { |
long day = ago / ONE_DAY; |
long hour = ago % ONE_DAY / ONE_HOUR; |
long minute = ago % ONE_DAY % ONE_HOUR / ONE_MINUTE; |
return day + "天前" + hour + "点" + minute + "分"; |
} else if (ago <= ONE_YEAR) { |
long month = ago / ONE_MONTH; |
long day = ago % ONE_MONTH / ONE_DAY; |
long hour = ago % ONE_MONTH % ONE_DAY / ONE_HOUR; |
long minute = ago % ONE_MONTH % ONE_DAY % ONE_HOUR / ONE_MINUTE; |
return month + "个月" + day + "天" + hour + "点" + minute + "分前"; |
} else { |
long year = ago / ONE_YEAR; |
long month = ago % ONE_YEAR / ONE_MONTH; |
long day = ago % ONE_YEAR % ONE_MONTH / ONE_DAY; |
return year + "年前" + month + "月" + day + "天"; |
} |
} |
public static String getYear() { |
return calendar.get(Calendar.YEAR) + ""; |
} |
public static String getMonth() { |
int month = calendar.get(Calendar.MONTH) + 1; |
return month + ""; |
} |
public static String getDay() { |
return calendar.get(Calendar.DATE) + ""; |
} |
public static String get24Hour() { |
return calendar.get(Calendar.HOUR_OF_DAY) + ""; |
} |
public static String getMinute() { |
return calendar.get(Calendar.MINUTE) + ""; |
} |
public static String getSecond() { |
return calendar.get(Calendar.SECOND) + ""; |
} |
public static void main(String[] args) throws ParseException { |
String deadline = "2012-12-30 12:45:59"; |
Date date = new Date(); |
SimpleDateFormat simple = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
date = simple.parse(deadline); |
System.out.println(DateUtils.fromDeadline(date)); |
String before = "2012-12-12 0:0:59"; |
date = simple.parse(before); |
System.out.println(DateUtils.fromToday(date)); |
System.out.println(DateUtils.getFullDate()); |
System.out.println(DateUtils.getDate()); |
} |
} |
