package util;
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import java.text.DateFormat;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.TimeZone;
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import org.apache.commons.lang.StringUtils;
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import org.springframework.util.Assert;
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public abstract class DateUtils {
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public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";
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public static final String DEFAULT_TIME_ZONE = "GMT-4:00";
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public static final String NORMAL_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
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/**
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* 根据yyyy-MM-dd HH:mm:ss格式返回指定时间
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*
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* @return
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*/
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public static final String formatOfDateTime(Date date) {
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return format(date, NORMAL_DATE_FORMAT);
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}
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/**
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* 根据yyyy-MM-dd HH:mm:ss格式返回当前时间
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*
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* @return
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*/
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public static final String formatOfDateTime() {
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return formatOfDateTime(new Date());
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}
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public static final String format(Date date, String pattern) {
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if (date == null) {
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throw new NullPointerException("时间不能为NULL!");
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}
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if (StringUtils.isEmpty(pattern)) {
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throw new IllegalArgumentException("格式pattern不能为空字符串!");
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}
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Calendar calendar = Calendar.getInstance();
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calendar.setFirstDayOfWeek(Calendar.MONDAY);
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DateFormat formater = new SimpleDateFormat(pattern);
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formater.setCalendar(calendar);
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return formater.format(date);
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}
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public static Date toDate(String string) {
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return toDate(string, DEFAULT_DATE_FORMAT);
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}
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public static Date toDate(String string, String pattern) {
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return toDate(string, pattern, TimeZone.getTimeZone(DEFAULT_TIME_ZONE));
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}
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public static Date toDate(String string, String pattern, TimeZone timeZone) {
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try {
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SimpleDateFormat sdf = (SimpleDateFormat) createDateFormat(pattern, timeZone);
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return sdf.parse(string);
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} catch (ParseException e) {
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throw new RuntimeException(e);
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}
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}
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public static String format(Date date, String pattern, TimeZone timeZone) {
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DateFormat df = createDateFormat(pattern, timeZone);
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return df.format(date);
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}
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public static DateFormat createDateFormat(String pattern) {
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return createDateFormat(pattern, TimeZone.getTimeZone(DEFAULT_TIME_ZONE));
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}
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public static DateFormat createDateFormat(String pattern, TimeZone timeZone) {
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SimpleDateFormat sdf = new SimpleDateFormat(pattern);
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TimeZone gmt = timeZone;
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sdf.setTimeZone(gmt);
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sdf.setLenient(true);
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return sdf;
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}
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public static int getYear(java.util.Date date) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(date);
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return calendar.get(Calendar.YEAR);
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}
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public static String getShortYear(java.util.Date date) {
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String year = getYear(date) + "";
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int length = year.length();
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return year.substring(length - 2, length);
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}
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public static int getMonth(java.util.Date date) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(date);
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return calendar.get(Calendar.MONTH) + 1;
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}
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public static int getDay(java.util.Date date) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(date);
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return calendar.get(Calendar.DAY_OF_MONTH);
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}
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public static int getHour(java.util.Date date) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(date);
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return calendar.get(Calendar.HOUR_OF_DAY);
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}
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public static int getMinute(java.util.Date date) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(date);
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return calendar.get(Calendar.MINUTE);
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}
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public static int getSecond(java.util.Date date) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(date);
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return calendar.get(Calendar.SECOND);
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}
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public static Date addMilliSecond(java.util.Date oldDate, int addMilliSecond) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.MILLISECOND, addMilliSecond);
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return calendar.getTime();
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}
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public static Date addSecond(java.util.Date oldDate, int addSecond) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.SECOND, addSecond);
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return calendar.getTime();
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}
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public static Date addMinute(java.util.Date oldDate, int addMinutes) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.MINUTE, addMinutes);
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return calendar.getTime();
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}
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public static Date addHour(java.util.Date oldDate, int addHours) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.HOUR, addHours);
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return calendar.getTime();
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}
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public static Date addDay(java.util.Date oldDate, int addDays) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.DATE, addDays);
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return calendar.getTime();
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}
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public static Date addMonth(java.util.Date oldDate, int addMonths) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.MONTH, addMonths);
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return calendar.getTime();
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}
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public static Date addYear(java.util.Date oldDate, int addYears) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.add(Calendar.YEAR, addYears);
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return calendar.getTime();
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}
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public static long calcTimeBetween(String unitType, Date startDate, Date endDate) {
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Assert.hasText(unitType);
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Assert.notNull(startDate);
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Assert.notNull(endDate);
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long between = endDate.getTime() - startDate.getTime();
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if (unitType.equals("ms")) {
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return between;
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} else if (unitType.equals("s")) {
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return between / 1000;// 返回秒
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} else if (unitType.equals("m")) {
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return between / 60000;// 返回分钟
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} else if (unitType.equals("h")) {
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return between / 3600000;// 返回小时
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} else if (unitType.equals("d")) {
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return between / 86400000;// 返回天数
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} else {
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throw new IllegalArgumentException("the unitType is unknown");
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}
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}
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public static long calcTimeBetweenInMillis(Date startDate, Date endDate) {
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return calcTimeBetween("ms", startDate, endDate);
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}
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public static long calcTimeBetweenInSecond(Date startDate, Date endDate) {
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return calcTimeBetween("s", startDate, endDate);
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}
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public static long calcTimeBetweenInMinute(Date startDate, Date endDate) {
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return calcTimeBetween("m", startDate, endDate);
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}
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public static long calcTimeBetweenInHour(Date startDate, Date endDate) {
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return calcTimeBetween("h", startDate, endDate);
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}
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public static long calcTimeBetweenInDay(Date startDate, Date endDate) {
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return calcTimeBetween("d", startDate, endDate);
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}
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public static Date roundYear(Date date) {
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return org.apache.commons.lang.time.DateUtils.round(date, Calendar.YEAR);
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}
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public static Date roundMonth(Date date) {
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return org.apache.commons.lang.time.DateUtils.round(date, Calendar.MONTH);
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}
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public static Date roundDay(Date date) {
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return org.apache.commons.lang.time.DateUtils.round(date, Calendar.DATE);
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}
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public static Date roundHour(Date date) {
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return org.apache.commons.lang.time.DateUtils.round(date, Calendar.HOUR);
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}
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public static Date roundMinute(Date date) {
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return org.apache.commons.lang.time.DateUtils.round(date, Calendar.MINUTE);
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}
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public static Date roundSecond(Date date) {
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return org.apache.commons.lang.time.DateUtils.round(date, Calendar.SECOND);
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}
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public static Date truncateYear(Date date) {
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return org.apache.commons.lang.time.DateUtils.truncate(date, Calendar.YEAR);
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}
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public static Date truncateMonth(Date date) {
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return org.apache.commons.lang.time.DateUtils.truncate(date, Calendar.MONTH);
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}
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public static Date truncateDay(Date date) {
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return org.apache.commons.lang.time.DateUtils.truncate(date, Calendar.DATE);
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}
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public static Date truncateHour(Date date) {
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return org.apache.commons.lang.time.DateUtils.truncate(date, Calendar.HOUR);
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}
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public static Date truncateMinute(Date date) {
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return org.apache.commons.lang.time.DateUtils.truncate(date, Calendar.MINUTE);
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}
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public static Date truncateSecond(Date date) {
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return org.apache.commons.lang.time.DateUtils.truncate(date, Calendar.SECOND);
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}
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public static Date setHour(Date oldDate, int newHour) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.set(Calendar.HOUR, newHour);
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return calendar.getTime();
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}
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public static Date setMinute(Date oldDate, int newMinute) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.set(Calendar.MINUTE, newMinute);
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return calendar.getTime();
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}
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public static Date setSecond(Date oldDate, int newSecond) {
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Calendar calendar = (Calendar) Calendar.getInstance().clone();
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calendar.setTime(oldDate);
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calendar.set(Calendar.SECOND, newSecond);
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return calendar.getTime();
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}
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/**
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*
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* @param dt Date
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* @return boolean
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*/
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@SuppressWarnings("deprecation")
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public static boolean isRYear(Date dt) {
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return (isRYear(1900 + dt.getYear()));
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}
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/**
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*
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* @param y int
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* @return boolean
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*/
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public static boolean isRYear(int y) {
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return (y % 400 == 0 || (y % 4 == 0 && y % 100 != 0));
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}
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/**
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* 获取一个日期的时间字符串
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*
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* @param dt Date
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* @return String
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*/
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public static String getTimeStr(Date dt) {
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return new SimpleDateFormat("HH:mm:ss").format(dt);
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}
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/**
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* 获取一个日期值的日期字符串
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*
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* @param dt Date
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* @return String
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*/
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public static String getDateStr(Date dt) {
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return new SimpleDateFormat("yyyy-MM-dd").format(dt);
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}
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/**
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* 获取一个日期值的带时间日期字符串
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*
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* @param dt Date
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* @return String
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*/
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public static String getLongDate(Date dt) {
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return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(dt);
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}
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/**
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*
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* @param dt Date
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* @return String
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*/
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public static String toString(Date dt) {
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return format(dt, "yyyy-MM-dd HH:mm:ss");
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}
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/**
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*
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* @param date Date
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* @return Timestamp added by jiayc
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*/
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public static java.sql.Timestamp dateToTimeStamp(java.util.Date date) {
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if (date == null) {
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return null;
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} else {
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return new java.sql.Timestamp(date.getTime());
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}
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}
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}
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