/**
* ========================================================
* 北京五八信息技术有限公司技术中心开发一部
* 日 期：2011-3-14 上午10:16:22
* 作 者：张纪豪
* 版 本：1.0.0
* ========================================================
* 修订日期 修订人 描述
*
*/
package org.howsun.util;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.concurrent.TimeUnit;
/**
* <h1>功能描述：</h1>
*
* @author howsun(howsun.zhang@google.com)
* @version 1.0.0
*/
public abstract class Dates {
/**
* @deprecated 未考虑线程安全
*/
public final static SimpleDateFormat TIMESTAMP_FORMATTER = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
/**
* @deprecated 未考虑线程安全
*/
public final static SimpleDateFormat DATE_FORMATTER = new SimpleDateFormat("yyyy-MM-dd");
/**
* @deprecated 未考虑线程安全
*/
public final static SimpleDateFormat TIME_FORMATTER = new SimpleDateFormat("HH:mm:ss");
/***
* 线程安全的时间格式化工具
*/
private static final ThreadLocal<SimpleDateFormat> TIMESTAMP_FORMATER = new ThreadLocal<SimpleDateFormat>();
/**
* @param date
* @return 返回yyyy-MM-dd HH:mm:ss SSS格式的时间
*/
public static String getDateFormated_yyyyMMddHHmmssSSS(Date date){
return getDateFormated("yyyy-MM-dd HH:mm:ss SSS", date);
}
/**
* @param date
* @return 返回yyyy-MM-dd HH:mm:ss格式的时间
*/
public static String getDateFormated_yyyyMMddHHmmss(Date date){
return getDateFormated("yyyy-MM-dd HH:mm:ss", date);
}
/**
* @param date
* @return 返回yyyy-MM-dd格式的时间
*/
public static String getDateFormated_yyyyMMdd(Date date){
return getDateFormated("yyyy-MM-dd", date);
}
/**
* @param date
* @return 返回HH:mm:ss格式的时间
*/
public static String getDateFormated_HHmmss(Date date){
return getDateFormated("HH:mm:ss", date);
}
/**
* 通用日期格式化方法，考虑到线程安全问题
* @param pattren
* @param date
* @return
*/
public static String getDateFormated(String pattern, Date date){
SimpleDateFormat formater = TIMESTAMP_FORMATER.get();
if(formater == null){
formater = new SimpleDateFormat(pattern);
TIMESTAMP_FORMATER.set(formater);
}
else if(!pattern.equals(formater.toPattern())){
formater.applyPattern(pattern);
}
return formater.format(date);
}
/**
* 把字节数组中时分秒转换成以秒为单位的整数
*
* @param times
* @return
*/
public static int HHmmssBytes2second(byte[] times){
int length = times.length - 1;
int ret = 0;
for (int i = 0; i <= length ; i++) {
ret += ((times[i] < 0) ? 60 + times[i] : times[i]) * Math.pow(60, length - i);
}
return ret;
}
/**
* 时:分:秒 格式的字符串转换成整数秒
* @param time
* @return
*/
public static int HHmmssString2secoend(String onlyTime){
Date date = null;
try {
date = TIME_FORMATTER.parse(onlyTime);
return getSecoendInIntraday(date);
} catch (Exception e) {e.printStackTrace();}
return -1;
}
/**
* 将秒数转换成数组
* @param time
* @return
*/
public static byte[] secoends2HHmmssBytes(int secoends){
byte[] ts = new byte[3];
try {
ts[0] = (byte)(secoends / 3600);
ts[1] = (byte)(secoends % 3600 / 60);
ts[2] = (byte)(secoends % 3600 % 60);
} catch (Exception e) {e.printStackTrace();}
return ts;
}
/**
* 获取今天当前的秒数
* @return
*/
public static int getSecoendInIntraday(){
return getSecoendInIntraday(Calendar.getInstance(Locale.CHINA));
}
/**
* 获取某天至现在的秒数
* @param calendar
* @return
*/
public static int getSecoendInIntraday(Calendar calendar){
if(calendar == null)
calendar = Calendar.getInstance();
return (int)( ( calendar.getTimeInMillis() - getSecoendOfBegin(calendar, Calendar.DATE) ) / 1000 );
}
/**
* 获取某年的秒数
* @param calendar
* @return
*/
public static int getSecoendInThisYear(Calendar calendar){
if(calendar == null)
calendar = Calendar.getInstance();
return (int)( ( calendar.getTimeInMillis() - getSecoendOfBegin(calendar, Calendar.YEAR) ) / 1000 );
}
/**
* 获取当天当前的秒数
* @param date
* @return
*/
public static int getSecoendInIntraday(Date date){
Calendar cal = Calendar.getInstance();
cal.setTime(date);
return getSecoendInIntraday(cal);
}
/**
* 获取某年的秒数
* @param calendar
* @return
*/
public static int getSecoendInThisYear(){
Calendar calendar = Calendar.getInstance();
return (int)( ( calendar.getTimeInMillis() - getSecoendOfBegin(calendar, Calendar.YEAR) ) / 1000 );
}
/**
* 获取某时间的开始毫秒数
*
* @param calendar 时间
* @param calendarField 类型，只支持年开始的秒数，月开始的秒数，日开始的秒数，小时开始的秒数，分钟开始的秒数
* @return 毫秒数
*/
public static long getSecoendOfBegin(Calendar calendar, int calendarField){
Calendar cal = calendar == null ? Calendar.getInstance() : (Calendar)calendar.clone();
cal.set(Calendar.AM_PM, 0);
switch (calendarField) {
case Calendar.YEAR:
cal.set(cal.get(Calendar.YEAR), 0, 1, 0, 0, 0);
break;
case Calendar.MONTH:
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1, 0, 0, 0);
break;
case Calendar.DATE:
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DATE), 0, 0, 0);
break;
case Calendar.HOUR:
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DATE), cal.get(Calendar.HOUR), 0, 0);
break;
case Calendar.MINUTE:
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DATE), cal.get(Calendar.HOUR), cal.get(Calendar.MINUTE), 0);
break;
default:
throw new RuntimeException("不支持的时间模式。");
}
cal.set(Calendar.MILLISECOND, 0);
return cal.getTimeInMillis();
}
/**
* 获取参数1指定时间类型的开始毫秒数
* 例如今天最开始的秒数为getSecoendOfBegin(Calendar.DATE)
* @param calendarField
* @return 毫秒数
*/
public static long getSecoendOfBegin(int calendarField){
return getSecoendOfBegin(null, calendarField);
}
/**
* 获取今天字符串格式的日期
* @param formatter
* @return
*/
public static String getDateString(SimpleDateFormat formatter){
return formatter.format(new Date());
}
public static String getDate(Calendar time, String format){
if(time == null) return "";
StringBuffer sb = new StringBuffer();
try {
sb.append(new SimpleDateFormat(format).format(time.getTime()));
} catch (Exception e) {
sb.append(new SimpleDateFormat("yyyy-MM-dd").format(time.getTime()));
}
return sb.toString();
}
public static String getDate(Calendar time){
return getDate(time,"yyyy-MM-dd");
}
@Deprecated
public static void setCalendar(Calendar time, int field, int amount){
if(time == null)
time = Calendar.getInstance(Locale.CHINA);
time.add(field, amount);
//return time;
}
public static Calendar cloneCalendar(Calendar time, int field, int amount){
Calendar newTime = time== null ? Calendar.getInstance(Locale.CHINA) : (Calendar)time.clone();
newTime.add(field, amount);
return newTime;
}
/**
* 今天以后的日期离今天还剩的天数
* @param oldTime
* @return
*/
public static long amountLeaveAfter(Calendar oldTime){
Calendar newTime = Calendar.getInstance();
return ( oldTime.getTimeInMillis() - newTime.getTimeInMillis() ) / 1000 / 60 / 60 / 24;
}
/**
* 今天以前的日期离今天还剩的天数
* @param oldTime
* @return
*/
public static long amountLeaveBefore(Calendar oldTime){
Calendar newTime = Calendar.getInstance();
return (newTime.getTimeInMillis()-oldTime.getTimeInMillis())/1000/60/60/24;
}
/**
*
* @param date
* @param second
* @return
*/
public static Date getDateByOffset(Date date, int amount, TimeUnit timeUnit){
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
switch (timeUnit) {
case DAYS:
calendar.add(Calendar.DATE, amount);
break;
case HOURS:
calendar.add(Calendar.HOUR, amount);
break;
case MINUTES:
calendar.add(Calendar.MINUTE, amount);
break;
case SECONDS:
calendar.add(Calendar.SECOND, amount);
break;
case MILLISECONDS:
calendar.add(Calendar.MILLISECOND, amount);
break;
default:
break;
}
return calendar.getTime();
}
/**
* 求真实年龄
* @param birthDay
* @return
* @throws Exception
*/
public static int getAge(Date birthDay){
Calendar cal = Calendar.getInstance();
if (cal.before(birthDay)) {
throw new IllegalArgumentException(
"The birthDay is before Now.It's unbelievable!");
}
int yearNow = cal.get(Calendar.YEAR);
int monthNow = cal.get(Calendar.MONTH);
int dayOfMonthNow = cal.get(Calendar.DAY_OF_MONTH);
cal.setTime(birthDay);
int yearBirth = cal.get(Calendar.YEAR);
int monthBirth = cal.get(Calendar.MONTH);
int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);
int age = yearNow - yearBirth;
if (monthNow <= monthBirth) {
if (monthNow == monthBirth) {
//monthNow==monthBirth
if (dayOfMonthNow < dayOfMonthBirth) {
age--;
} else {
//do nothing
}
} else {
//monthNow>monthBirth
age--;
}
} else {
//monthNow<monthBirth
//donothing
}
return age;
}
public static boolean isToday(Calendar date){
Calendar today = Calendar.getInstance();
date.setFirstDayOfWeek(Calendar.MONDAY);
today.setFirstDayOfWeek(Calendar.MONDAY);
return date.get(Calendar.YEAR) == today.get(Calendar.YEAR)
&& date.get(Calendar.MONTH) == today.get(Calendar.MONTH)
&& date.get(Calendar.DATE) == today.get(Calendar.DATE);
}
public static boolean isThisWeek(Calendar date){
Calendar today = Calendar.getInstance();
date.setFirstDayOfWeek(Calendar.MONDAY);
today.setFirstDayOfWeek(Calendar.MONDAY);
return date.get(Calendar.YEAR) == today.get(Calendar.YEAR)
&& date.get(Calendar.WEEK_OF_YEAR) == today.get(Calendar.WEEK_OF_YEAR);
}
public static boolean isThisMonth(Calendar date){
Calendar today = Calendar.getInstance();
date.setFirstDayOfWeek(Calendar.MONDAY);
today.setFirstDayOfWeek(Calendar.MONDAY);
return date.get(Calendar.YEAR) == today.get(Calendar.YEAR)
&& date.get(Calendar.MONTH) == today.get(Calendar.MONTH);
}
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
Date d = new SimpleDateFormat("yyyy-MM-dd").parse("1976-11-21");
System.out.println(getAge(d));
}
}