西部数码网站管理助手搭建织梦,室内设计效果图一套,网站没有友情链接,免费模板的软件如图#xff1a; 注意#xff0c;评论时间戳的格式#xff0c;刚才#xff0c;几小时之前#xff0c;几天之前..... 实现需要一个时间格式的工具类#xff0c;如果用java.util.Date当然也可以实现#xff0c;这里说的是更方便的joda-time。 maven地址#xff1a;http:/…如图 注意评论时间戳的格式刚才几小时之前几天之前..... 实现需要一个时间格式的工具类如果用java.util.Date当然也可以实现这里说的是更方便的joda-time。 maven地址http://search.maven.org/#search%7Cga%7C1%7Cjoda-time 工具类如下 package com.chunsheng.me.timestamp;import java.util.Date;
import java.util.concurrent.TimeUnit;import org.joda.time.DateTime;
import org.joda.time.Days;
import org.joda.time.Hours;
import org.joda.time.Minutes;
import org.joda.time.Months;
import org.joda.time.Weeks;
import org.joda.time.Years;class TimeStampFormatter {/*** For use with java.util.Date*/public String format(Date timestamp) {long millisFromNow getMillisFromNow(timestamp);long minutesFromNow TimeUnit.MILLISECONDS.toMinutes(millisFromNow);if (minutesFromNow 1) {return just now;}long hoursFromNow TimeUnit.MILLISECONDS.toHours(millisFromNow);if (hoursFromNow 1) {return formatMinutes(minutesFromNow);}long daysFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow);if (daysFromNow 1) {return formatHours(hoursFromNow);}long weeksFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow) / 7;if (weeksFromNow 1) {return formatDays(daysFromNow);}long monthsFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow) / 30;if (monthsFromNow 1) {return formatWeeks(weeksFromNow);}long yearsFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow) / 365;if (yearsFromNow 1) {return formatMonths(monthsFromNow);}return formatYears(yearsFromNow);}private long getMillisFromNow(Date commentedAt) {long commentedAtMillis commentedAt.getTime();long nowMillis System.currentTimeMillis();return nowMillis - commentedAtMillis;}/*** For use with org.joda.DateTime*/public String format(DateTime commentedAt) {DateTime now DateTime.now();Minutes minutesBetween Minutes.minutesBetween(commentedAt, now);if (minutesBetween.isLessThan(Minutes.ONE)) {return just now;}Hours hoursBetween Hours.hoursBetween(commentedAt, now);if (hoursBetween.isLessThan(Hours.ONE)) {return formatMinutes(minutesBetween.getMinutes());}Days daysBetween Days.daysBetween(commentedAt, now);if (daysBetween.isLessThan(Days.ONE)) {return formatHours(hoursBetween.getHours());}Weeks weeksBetween Weeks.weeksBetween(commentedAt, now);if (weeksBetween.isLessThan(Weeks.ONE)) {return formatDays(daysBetween.getDays());}Months monthsBetween Months.monthsBetween(commentedAt, now);if (monthsBetween.isLessThan(Months.ONE)) {return formatWeeks(weeksBetween.getWeeks());}Years yearsBetween Years.yearsBetween(commentedAt, now);if (yearsBetween.isLessThan(Years.ONE)) {return formatMonths(monthsBetween.getMonths());}return formatYears(yearsBetween.getYears());}private String formatMinutes(long minutes) {return format(minutes, minute ago, minutes ago);}private String formatHours(long hours) {return format(hours, hour ago, hours ago);}private String formatDays(long days) {return format(days, day ago, days ago);}private String formatWeeks(long weeks) {return format(weeks, week ago, weeks ago);}private String formatMonths(long months) {return format(months, month ago, months ago);}private String formatYears(long years) {return format(years, year ago, years ago);}private String format(long hand, String singular, String plural) {if (hand 1) {return hand singular;} else {return hand plural;}}}PS Date之常用 private static Date date(String string) {try {return new SimpleDateFormat(yyyy-MM-dd HH:mm, Locale.UK).parse(string);} catch (ParseException e) {throw new IllegalArgumentException(e);}}private static Date dateIso(String string){try {SimpleDateFormat simpleDateFormat new SimpleDateFormat(yyyy-MM-ddTHH:mm:ssZ, Locale.getDefault());simpleDateFormat.setTimeZone(TimeZone.getTimeZone(GMT));return simpleDateFormat.parse(string);} catch (ParseException e) {throw new IllegalArgumentException(e);}}dateIso(2014-02-14T18:40:50Z)TimeStampFormatter t new TimeStampFormatter();//new SimpleDateFormat(yyyy-MM-dd HH:mm, Locale.UK).parse(string)try {System.out.println(t.format(new SimpleDateFormat(yyyy-MM-dd HH:mm, Locale.CHINA).parse(2016-02-14 09:00)));} catch (ParseException e) {// TODO Auto-generated catch blocke.printStackTrace();}PSDate实现 import java.util.Date;
import java.util.concurrent.TimeUnit;class TimeStampFormatter {/*** For use with java.util.Date*/public String format(Date timestamp) {long millisFromNow getMillisFromNow(timestamp);long minutesFromNow TimeUnit.MILLISECONDS.toMinutes(millisFromNow);if (minutesFromNow 1) {return just now;}long hoursFromNow TimeUnit.MILLISECONDS.toHours(millisFromNow);if (hoursFromNow 1) {return formatMinutes(minutesFromNow);}long daysFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow);if (daysFromNow 1) {return formatHours(hoursFromNow);}long weeksFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow) / 7;if (weeksFromNow 1) {return formatDays(daysFromNow);}long monthsFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow) / 30;if (monthsFromNow 1) {return formatWeeks(weeksFromNow);}long yearsFromNow TimeUnit.MILLISECONDS.toDays(millisFromNow) / 365;if (yearsFromNow 1) {return formatMonths(monthsFromNow);}return formatYears(yearsFromNow);}private long getMillisFromNow(Date commentedAt) {long commentedAtMillis commentedAt.getTime();long nowMillis System.currentTimeMillis();return nowMillis - commentedAtMillis;}private String formatMinutes(long minutes) {return format(minutes, minute ago, minutes ago);}private String formatHours(long hours) {return format(hours, hour ago, hours ago);}private String formatDays(long days) {return format(days, day ago, days ago);}private String formatWeeks(long weeks) {return format(weeks, week ago, weeks ago);}private String formatMonths(long months) {return format(months, month ago, months ago);}private String formatYears(long years) {return format(years, year ago, years ago);}private String format(long hand, String singular, String plural) {if (hand 1) {return hand singular;} else {return hand plural;}}
}fromhttp://blog.blundellapps.co.uk/creating-comments-with-timestamps-like-youtube/ import java.util.Date;
import java.util.concurrent.TimeUnit;import org.junit.Test;import static org.junit.Assert.assertEquals;public class JavaUtilDate_TimeStampFormatterTest {private static final int DAYS_IN_A_WEEK 7;private static final int AVERAGE_DAYS_IN_A_MONTH 30;private static final int DAYS_IN_YEAR 365; // We dont need the level of accuracy of leap yearsTestpublic void givenCommentedUnder60SecondsAgo_thenFormatSaysJustNow() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusSeconds(59, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(just now, commentedAtFormatted);}Testpublic void givenCommented1MinuteAgo_thenFormatSays1MinuteAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusMinutes(1, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(1 minute ago, commentedAtFormatted);}Testpublic void givenCommentedUnder60MinuteAgo_thenFormatSaysXMinutesAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusMinutes(59, minusSeconds(59, now()));String commentedAtFormatted formatter.format(commentedAt);assertEquals(59 minutes ago, commentedAtFormatted);}Testpublic void givenCommented1HourAgo_thenFormatSays1HourAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusHours(1, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(1 hour ago, commentedAtFormatted);}Testpublic void givenCommentedUnder24HoursAgo_thenFormatSaysXHoursAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusHours(23, minusMinutes(59, now()));String commentedAtFormatted formatter.format(commentedAt);assertEquals(23 hours ago, commentedAtFormatted);}Testpublic void givenCommented1DayAgo_thenFormatSays1DayAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusDays(1, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(1 day ago, commentedAtFormatted);}Testpublic void givenCommentedLessThan7DayAgo_thenFormatSaysXDaysAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusDays(6, minusHours(23, minusMinutes(59, now())));String commentedAtFormatted formatter.format(commentedAt);assertEquals(6 days ago, commentedAtFormatted);}Testpublic void givenCommented1WeekAgo_thenFormatSays1WeekAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusWeeks(1, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(1 week ago, commentedAtFormatted);}Testpublic void givenCommentedLessThan4WeeksAgo_thenFormatSaysXWeeksAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusWeeks(3, minusDays(6, minusHours(23, minusMinutes(59, now()))));String commentedAtFormatted formatter.format(commentedAt);assertEquals(3 weeks ago, commentedAtFormatted);}Testpublic void givenCommented1MonthAgo_thenFormatSays1MonthAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusMonths(1, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(1 month ago, commentedAtFormatted);}Testpublic void givenCommentedLessThan1YearAgo_thenFormatSaysXMonthsAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusMonths(11, minusWeeks(3, minusDays(6, minusHours(23, minusMinutes(59, now())))));String commentedAtFormatted formatter.format(commentedAt);assertEquals(11 months ago, commentedAtFormatted);}Testpublic void givenCommented1YearAgo_thenFormatSays1YearAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusYears(1, now());String commentedAtFormatted formatter.format(commentedAt);assertEquals(1 year ago, commentedAtFormatted);}Testpublic void givenCommentedOver1YearAgo_thenFormatSaysXYearsAgo() throws Exception {TimeStampFormatter formatter new TimeStampFormatter();Date commentedAt minusYears(2, minusMonths(11, minusWeeks(3, minusDays(6, minusHours(23, minusMinutes(59, now()))))));String commentedAtFormatted formatter.format(commentedAt);assertEquals(2 years ago, commentedAtFormatted);}private Date minusSeconds(int seconds, Date date) {return minus(date, TimeUnit.SECONDS.toMillis(seconds));}private Date minusMinutes(int minutes, Date date) {return minus(date, TimeUnit.MINUTES.toMillis(minutes));}private Date minusHours(int hours, Date date) {return minus(date, TimeUnit.HOURS.toMillis(hours));}private Date minusDays(int days, Date date) {return minus(date, TimeUnit.DAYS.toMillis(days));}private Date minusWeeks(int weeks, Date date) {return minus(date, TimeUnit.DAYS.toMillis(weeks * DAYS_IN_A_WEEK));}private Date minusMonths(int months, Date date) {return minus(date, TimeUnit.DAYS.toMillis(months * AVERAGE_DAYS_IN_A_MONTH));}private Date minusYears(int years, Date date) {return minus(date, TimeUnit.DAYS.toMillis(years * DAYS_IN_YEAR));}private Date minus(Date date, long minutesInMillis) {date.setTime(date.getTime() - minutesInMillis);return date;}private Date now() {return new Date();}
}
