/*
* Distributable under LGPL v3 license.
* See terms of license at https://github.com/Yunfeng/schotel/blob/master/LICENSE
*/
package cn.buk.util;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
public class DateUtil {
private DateUtil() {}
/**
* 按照指定的年月日数字生产Date对象
* @param year
* @param month
* @param date
* @return
*/
public static Date createDate(int year, int month, int date) {
GregorianCalendar calendar = new GregorianCalendar();
calendar.clear();
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, month - 1);
calendar.set(Calendar.DAY_OF_MONTH, date);
return calendar.getTime();
}
public static Date createDateTime(int year, int month, int date, int hourOfDay, int minute, int second) {
GregorianCalendar calendar = new GregorianCalendar();
calendar.clear();
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, month - 1);
calendar.set(Calendar.DAY_OF_MONTH, date);
calendar.set(Calendar.HOUR, hourOfDay);
calendar.set(Calendar.MINUTE, minute);
calendar.set(Calendar.SECOND, second);
return calendar.getTime();
}
/**
* 调整时间
* @param date
* @param hourOfDay
* @param minute
* @param second
* @return
*/
public static Date setTimeOnDate(Date date, int hourOfDay, int minute, int second) {
Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
c.set(Calendar.HOUR_OF_DAY, hourOfDay);
c.set(Calendar.MINUTE, minute);
c.set(Calendar.SECOND, second);
return c.getTime();
}
/**
* 获取当前日期时间
* @return
*/
public static Date getCurDateTime() {
return Calendar.getInstance().getTime();
}
public static Date getCurTime() {
Calendar c = Calendar.getInstance();
c.clear(Calendar.YEAR);
c.clear(Calendar.MONTH);
c.clear(Calendar.DAY_OF_MONTH);
return c.getTime();
}
public static String getCurDateTimeString() {
return getCurDateTimeString(null);
}
public static String getCurDateTimeString(String format) {
if (format == null) format = "yyyy年 MM月 dd日 HH时 mm分 ss秒";
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(getCurDateTime());
}
public static String formatDate(Date date, String format, Locale locale) {
SimpleDateFormat sdf = new SimpleDateFormat(format, locale);
return sdf.format(date);
}
public static String formatDate(Date date, String format) {
if (format == null) format = "yyyy-MM-dd HH:mm:ss";
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(date);
}
public static Date getCurDate() {
Calendar c = Calendar.getInstance();
c.set(Calendar.HOUR_OF_DAY, 0);
c.clear(Calendar.MINUTE);
c.clear(Calendar.SECOND);
c.clear(Calendar.MILLISECOND);
return c.getTime();
}
public static Date getSomedayAfterToday(int x) {
Calendar c = Calendar.getInstance();
//c.clear(Calendar.HOUR_OF_DAY);
c.set(Calendar.HOUR_OF_DAY, 0);
c.clear(Calendar.MINUTE);
c.clear(Calendar.SECOND);
c.clear(Calendar.MILLISECOND);
c.add(Calendar.DAY_OF_MONTH, x);
return c.getTime();
}
public static Date addDays(Date date, int x) {
Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
c.add(Calendar.DATE, x);
return c.getTime();
}
public static Date add(Date date, int x) {
return addDays(date, x);
}
public static Date addMonth(Date date, int x) {
Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
c.add(Calendar.MONTH, x);
return c.getTime();
}
/**
* 获取完整的起飞时间
* @param dDate 起飞日期 yyyy-MM-dd
* @param dTime 起飞时间 HH24:mm
* @return
*/
public static Date getFullDDate(Date dDate, String dTime) {
Calendar c = new GregorianCalendar();
c.clear();
c.setTime(dDate);
int dHour =0, dMinute=0;
try {
dHour = Integer.parseInt(dTime.substring(0, 2));
dMinute = Integer.parseInt(dTime.substring(3));
} catch(Exception ex) {
ex.printStackTrace();
}
c.set(Calendar.HOUR_OF_DAY, dHour);
c.set(Calendar.MINUTE, dMinute);
return c.getTime();
}
public static Date getOnlyDate(Date date) {
Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
c.set(Calendar.HOUR_OF_DAY, 0);
c.set(Calendar.MINUTE, 0);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
return c.getTime();
}
public static boolean isGreaterThan0230() {
Calendar c = Calendar.getInstance();
return c.get(Calendar.HOUR_OF_DAY) >= 2 && c.get(Calendar.MINUTE) >= 30;
}
public static int getPastDays(Date thenDate) {
return getPastDays(DateUtil.getCurDateTime(), thenDate);
}
public static int getPastDays(Date nowDate, Date thenDate) {
long ms = nowDate.getTime()-thenDate.getTime();
long seconds = ms/1000;
long minutes = seconds/60;
long hours = minutes/60;
int days = (int)(hours/24);
return days;
}
public static int getPastHours(Date pastDate) {
long seconds = getPastTime(pastDate) /1000;
int hours= (int) (seconds / 3600);
return hours;
}
public static int getPastMinutes(Date pastDate) {
long seconds = getPastTime(pastDate) / 1000;
int minutes = (int) seconds / 60;
return minutes;
}
/**
* 计算指定时刻距离当前的时间长短，单位为毫秒ms
* @param pastDate
*
* @return
*/
public static int getPastTime(Date pastDate) {
if (pastDate == null) return 0;
long ms = (getCurDateTime().getTime() - pastDate.getTime());
return (int)ms;
}
public static Date getDate(String dateString, String format) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.parse(dateString);
}
public static int getDayOfWeek(Date aDate) {
Calendar c = new GregorianCalendar();
c.clear();
c.setTime(aDate);
return c.get(Calendar.DAY_OF_WEEK);
}
public static String getDayOfWeekDesc(Date aDate) {
Calendar c = new GregorianCalendar();
c.clear();
c.setTime(aDate);
int x = c.get(Calendar.DAY_OF_WEEK);
switch (x)
{
case Calendar.SUNDAY: return "日";
case Calendar.MONDAY: return "一";
case Calendar.TUESDAY: return "二";
case Calendar.WEDNESDAY: return "三";
case Calendar.THURSDAY: return "四";
case Calendar.FRIDAY: return "五";
case Calendar.SATURDAY: return "六";
default: return "";
}
}
/**
* 比较dateNow和dateThen的天数差, dateNow - dateThen
* @param dateNow
* @param dateThen
* @return
*/
public static int getDaySpan(Date dateNow, Date dateThen){
long seconds = (dateNow.getTime() - dateThen.getTime() ) / 1000;
int days = (int)seconds / (60 * 60 * 24);
return days;
}
public static int getDaysSpan(Date dateNow, Date dateThen){
return getDaySpan(dateNow, dateThen);
}
public static String getUpdateTimeDesc(Date updateTime) {
long seconds = (getCurDateTime().getTime() - updateTime.getTime() ) / 1000;
int minutes = (int) seconds / 60;
if (minutes<0)
return "时间还没到呢";
else if (minutes<5)
return "刚刚";
else if (minutes >= 60) {
int hours = minutes / 60;
return hours + "小时前";
}
else
return minutes + "分钟前";
}
/**
* 是否小于等于当前日期时间
* @param date
* @return
*/
public static boolean isLowerEqualDate(Date date) {
long ms = date.getTime() - getCurDateTime().getTime();
return ms <= 0;
}
/**
* 是否大于等于当前时间
* @param date
* @return
*/
public static boolean isGreaterEqualOnlyTime(Date date) {
long ms = date.getTime() - getCurTime().getTime();
return ms >= 0;
}
/**
* 是否小于等于当前时间
* @param date
* @return
*/
public static boolean isLowerEqualOnlyTime(Date date) {
long ms = date.getTime() - getCurTime().getTime();
return ms <= 0;
}
/**
* 是否大于等于当前日期时间
* @param date
* @return
*/
public static boolean isGreaterEqualDate(Date date) {
long ms = date.getTime() - getCurDateTime().getTime();
return ms >= 0;
}
/*
* yyyy-MM-dd HH:mm:ss
*/
public static Date convertToDate(String val, String format) throws ParseException {
SimpleDateFormat sdf=new SimpleDateFormat(format);
return sdf.parse(val);
}
public static Date convertToDate(String val) throws ParseException {
return convertToDate(val, "yyyy-MM-dd");
}
public static Date convertToDateTime(String val) throws ParseException {
return convertToDate(val, "yyyy-MM-dd hh:mm:ss");
}
public static String FormateDate(Date date, String format) {
SimpleDateFormat f = new SimpleDateFormat(format);
return f.format(date);
}
public static boolean isValidateData(String val) {
try {
convertToDate(val, "yyyy-MM-dd");
return true;
} catch(Exception ex) {
return false;
}
}
public static String convertEtermDate(String val, String dayOfWeek, Date baseTime) {
String day = val.substring(0, 2);
String month = val.substring(2,5);
if (month.compareToIgnoreCase("JAN") == 0)
month = "01";
else if (month.compareToIgnoreCase("FEB") == 0)
month = "02";
else if (month.compareToIgnoreCase("MAR") == 0)
month = "03";
else if (month.compareToIgnoreCase("APR") == 0)
month = "04";
else if (month.compareToIgnoreCase("MAY") == 0)
month = "05";
else if (month.compareToIgnoreCase("JUN") == 0)
month = "06";
else if (month.compareToIgnoreCase("JUL") == 0)
month = "07";
else if (month.compareToIgnoreCase("AUG") == 0)
month = "08";
else if (month.compareToIgnoreCase("SEP") == 0)
month = "09";
else if (month.compareToIgnoreCase("OCT") == 0)
month = "10";
else if (month.compareToIgnoreCase("NOV") == 0)
month = "11";
else if (month.compareToIgnoreCase("DEC") == 0)
month = "12";
else
month = "00";
if (val.length() == 7) {
return "20" + val.substring(5) + "-" + month + "-" + day;
}
if (baseTime == null) baseTime = getCurDateTime();
Calendar c = Calendar.getInstance();
c.setTime(baseTime);
int curMonth = c.get(Calendar.MONTH);
int curYear = c.get(Calendar.YEAR);
int calcYear = curYear;
if (curMonth > Integer.parseInt(month))
calcYear++;
if (dayOfWeek != null && dayOfWeek.length() == 2) {
try {
int nextYear = curYear + 1;
int prevYear = curYear - 1;
boolean succeeded = false;
Date calcDate = convertToDate(nextYear + "-" + month + "-" + day);
String calcDayOfWeek = DateUtil.formatDate(calcDate, "E", Locale.ENGLISH);
calcDayOfWeek = calcDayOfWeek.toUpperCase();
if (calcDayOfWeek.indexOf(dayOfWeek) == 0) {
succeeded = true;
calcYear = nextYear;
}
if (succeeded == false) {
calcDate = convertToDate(curYear + "-" + month + "-" + day);
calcDayOfWeek = DateUtil.formatDate(calcDate, "E", Locale.ENGLISH);
calcDayOfWeek = calcDayOfWeek.toUpperCase();
if (calcDayOfWeek.indexOf(dayOfWeek) == 0) {
succeeded = true;
calcYear = curYear;
}
}
if (succeeded == false) {
calcDate = convertToDate(prevYear + "-" + month + "-" + day);
calcDayOfWeek = DateUtil.formatDate(calcDate, "E", Locale.ENGLISH);
calcDayOfWeek = calcDayOfWeek.toUpperCase();
if (calcDayOfWeek.indexOf(dayOfWeek) == 0) {
//successed = true;
calcYear = prevYear;
}
}
} catch (ParseException e) {
e.printStackTrace();
}
}
return Integer.toString(calcYear) + "-" + month + "-" + day;
}
public static Date addMinutes(Date date, int minutes) {
Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
c.add(Calendar.MINUTE, minutes);
return c.getTime();
}
public static Date getDateOnMinute(Date date) {
Calendar c = Calendar.getInstance();
c.clear();
c.setTime(date);
c.clear(Calendar.MILLISECOND);
c.clear(Calendar.SECOND);
return c.getTime();
}
}