Joda-Time
来源：互联网 发布：深入理解大数据 黄宜华 编辑：程序博客网 时间：2024/05/17 04:00
文章转载自 http://kanpiaoxue.iteye.com/blog/2086963
官网地址： http://www.joda.org/joda-time/
引用自： http://www.ibm.com/developerworks/cn/java/j-jodatime.html
DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyyMMdd"); DateTime dvDateTime = DateTime.parse(dataVersionDate, formatter); maven的pom.xml
<dependency> <groupId>joda-time</groupId> <artifactId>joda-time</artifactId> <version>2.3</version></dependency>import org.joda.time.DateTime;import org.joda.time.Days;import org.joda.time.Duration;import org.joda.time.Instant;import org.joda.time.LocalDate;import org.joda.time.LocalDate.Property;import org.joda.time.LocalTime;import com.google.common.base.Function;import com.google.common.base.Strings;import com.google.common.collect.FluentIterable;import com.google.common.collect.ImmutableList;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import java.util.List;import java.util.Locale;/** * <pre> * Test.java * @author kanpiaoxue<br> * @version 1.0 * Create Time 2014年6月30日 下午8:10:08<br> * Description : * </pre> */public class DateTimeExample { private static final String FORMATE_DATE = "yyyy-MM-dd"; private static final String FORMATE_SECONDS = "HH:mm:ss"; private static final String FORMATE_FULL = FORMATE_DATE.concat(" ").concat(FORMATE_SECONDS); /** * <pre> * @param args * </pre> */ public static void main(String[] args) { // 107天之后的日期 System.out.println(DateTime.now().dayOfYear().addToCopy(107) .toString("yyyy-MM-dd")); // 当前周的周一，周日 System.out.println(String.format( "min:%s, max:%s", DateTime.now().dayOfWeek().withMinimumValue() .toString("yyyy-MM-dd"), DateTime.now().dayOfWeek().withMaximumValue() .toString("yyyy-MM-dd"))); // 当前月的第一天和最后一天 System.out.println(String.format( "min:%s, max:%s", DateTime.now().dayOfMonth().withMinimumValue() .toString("yyyy-MM-dd"), DateTime.now().dayOfMonth().withMaximumValue() .toString("yyyy-MM-dd"))); // 当前年的第一天和最后一天 System.out.println(String.format( "min:%s, max:%s", DateTime.now().dayOfYear().withMinimumValue() .toString("yyyy-MM-dd"), DateTime.now().dayOfYear().withMaximumValue() .toString("yyyy-MM-dd"))); DateTime start = new DateTime(2014, 5, 30, 20, 11, 40); DateTime now = DateTime.now(); System.out.println("now:" + start.toString(FORMATE_DATE)); System.out.println("now format with Locale.CHINESE:" + now.toString(FORMATE_DATE, Locale.CHINESE)); System.out.println("before now 11 days:" + now.minusDays(11).toString(FORMATE_DATE)); System.out.println("before now 15 hours:" + now.minusHours(15).toString(FORMATE_DATE)); System.out.println("after now 30 days:" + now.plusDays(30).toString(FORMATE_DATE)); Duration duration = new Duration(start, now); System.out.println("duration.getStandardDays(): " + start.toString(FORMATE_FULL) + " 与 " + now.toString(FORMATE_FULL) + " 相差的天数：" + duration.getStandardDays()); System.out.println("duration.getStandardHours(): " + start.toString(FORMATE_FULL) + " 与 " + now.toString(FORMATE_FULL) + " 相差的小时数：" + duration.getStandardHours()); Calendar calendar = now.toCalendar(Locale.CHINESE); System.out.println("with JDK interact：" + new SimpleDateFormat(FORMATE_DATE).format(calendar.getTime())); Calendar calendar1 = Calendar.getInstance(); System.out.println("Calendar:" + new SimpleDateFormat(FORMATE_DATE).format(calendar1.getTime())); DateTime a = new DateTime(new Date()); System.out.println("格式化：" + a.toString(FORMATE_DATE, Locale.CHINESE)); DateTime b = new DateTime(2014, 1, 1, 0, 0); System.out.println("格式化：" + b.toString(FORMATE_DATE, Locale.CHINESE)); String timeString = "2006-01-26"; DateTime c = new DateTime(timeString); System.out.println("parse：" + c.toString(FORMATE_DATE, Locale.CHINESE)); LocalDate localDate = new LocalDate(2009, 9, 6);// September 6, 2009 System.out.println("LocalDate:" + localDate.toString(FORMATE_DATE, Locale.CHINESE)); LocalTime localTime = new LocalTime(13, 30, 26, 0);// 1:30:26PM System.out.println("LocalTime:" + localTime.toString("HH:mm:ss", Locale.CHINESE)); LocalDate d = LocalDate.now(); LocalDate lastDayOfPreviousMonth = d.minusMonths(1).dayOfMonth().withMaximumValue(); System.out.println("我希望计算上一个月的最后一天:" + lastDayOfPreviousMonth.toString(FORMATE_DATE, Locale.CHINESE)); Property e = d.minusWeeks(1).dayOfWeek(); System.out.println("上周的周一：" + e.withMinimumValue().toString(FORMATE_DATE, Locale.CHINESE)); System.out.println("上周的周日：" + e.withMaximumValue().toString(FORMATE_DATE, Locale.CHINESE)); System.out.println(".dayOfWeek().getAsText(Locale.CHINESE):" + a.minusYears(1).dayOfWeek().getAsText(Locale.CHINESE)); System.out.println(".monthOfYear().getAsText(Locale.CHINESE):" + a.minusYears(1).monthOfYear().getAsText(Locale.CHINESE)); System.out.println(".dayOfMonth().getAsText(Locale.CHINESE):" + a.minusYears(1).dayOfMonth().getAsText(Locale.CHINESE)); System.out.println("Days.daysBetween:" + Days.daysBetween(DateTime.parse("2014-06-27"), DateTime.parse("2014-07-02")) .getDays()); DateTime one = DateTime.parse("2014-06-27T13:23:01"); System.out.println(one.minuteOfDay()// 转换到 minuteOfDay .setCopy(11)// 设置 minuteOfDay 的数值为 11，也就是 11 分钟 .toString(FORMATE_FULL)); System.out.println(one.hourOfDay().setCopy(0).toString(FORMATE_FULL)); System.out.println(one.hourOfDay().addToCopy(3)// 在 hourOfDay 上面增加 3个小时 .toString(FORMATE_FULL)); System.out.println("是否闰月:" + one.minusMonths(4)// 在"2014-06-27"减去4个月到"2014-02-27" .monthOfYear()// 转换到monthOfYear的模式 .isLeap()// 是否闰月 ); DateTime from = DateTime.parse("2014-06-27"); DateTime to = DateTime.parse("2014-07-02"); int count = Days.daysBetween(from, to).getDays() + 1; ImmutableList.Builder<String> builder = ImmutableList.builder(); for (int i = 0; i < count; i++) { builder.add(from.plusDays(i).toString(FORMATE_DATE)); } List<String> dateStringList = builder.build(); for (String str : dateStringList) { System.out.println(str); } /** * <pre> * --output: * 2014-06-27 * 2014-06-28 * 2014-06-29 * 2014-06-30 * 2014-07-01 * 2014-07-02 * </pre> */ // 对于给定日期 "2014-07-02" 得到该年2月的同一天，即：2014-02-02 // ====== start 这里给出了3种方法，当然不至于这些方法 DateTime two = DateTime.parse("2014-07-02"); String feb = two.monthOfYear().withMinimumValue().plusMonths(1).toString(FORMATE_DATE); System.out.println("with " + two.toString(FORMATE_DATE) + " to get " + feb); feb = two.monthOfYear().setCopy(2).toString(FORMATE_DATE); System.out.println("with " + two.toString(FORMATE_DATE) + " to get " + feb); feb = two.monthOfYear().addToCopy(-5).toString(FORMATE_DATE); System.out.println("with " + two.toString(FORMATE_DATE) + " to get " + feb); // ====== end for (int i = 0; i < 10; i++) { DateTime in = two.plusYears(i); if (in.year().isLeap()) { System.out.println(in.toString("yyyy") + " 是闰年"); } } System.out.println(Strings.repeat("=", 100)); DateTime temp = DateTime.parse("2014-07-02")// 当前日期 .monthOfYear()// 年的月份 .withMinimumValue()// 年的月份中最小的数值：一月 .plusMonths(1);// 在一月上面加上一个月，就是二月 List<Long> dateLongValues = getDaysOfMonth(temp);// 二月所有天数的毫秒数列表 List<String> dates = FluentIterable.from(dateLongValues) .transform(new Function<Long, String>() { public String apply(Long input) { DateTime d = new DateTime(input.longValue()); return d.toString(FORMATE_DATE); } }).toList(); /** * <pre> * -- output * 2014-02-01 * 2014-02-02 * 2014-02-03 * 2014-02-04 * 2014-02-05 * 2014-02-06 * 2014-02-07 * 2014-02-08 * 2014-02-09 * 2014-02-10 * 2014-02-11 * 2014-02-12 * 2014-02-13 * 2014-02-14 * 2014-02-15 * 2014-02-16 * 2014-02-17 * 2014-02-18 * 2014-02-19 * 2014-02-20 * 2014-02-21 * 2014-02-22 * 2014-02-23 * 2014-02-24 * 2014-02-25 * 2014-02-26 * 2014-02-27 * 2014-02-28 * </pre> */ for (String str : dates) { System.out.println(str); } List<Long> hourLongValues = getHoursTimeOfDate(DateTime.now()); List<String> hours = FluentIterable.from(hourLongValues) .transform(new Function<Long, String>() { public String apply(Long input) { DateTime d = new DateTime(input.longValue()); return d.toString(FORMATE_FULL); } }).toList(); /** * <pre> * -- output * 2014-07-01 00:00:00 * 2014-07-01 01:00:00 * 2014-07-01 02:00:00 * 2014-07-01 03:00:00 * 2014-07-01 04:00:00 * 2014-07-01 05:00:00 * 2014-07-01 06:00:00 * 2014-07-01 07:00:00 * 2014-07-01 08:00:00 * 2014-07-01 09:00:00 * 2014-07-01 10:00:00 * 2014-07-01 11:00:00 * 2014-07-01 12:00:00 * 2014-07-01 13:00:00 * 2014-07-01 14:00:00 * 2014-07-01 15:00:00 * 2014-07-01 16:00:00 * 2014-07-01 17:00:00 * 2014-07-01 18:00:00 * 2014-07-01 19:00:00 * 2014-07-01 20:00:00 * 2014-07-01 21:00:00 * 2014-07-01 22:00:00 * 2014-07-01 23:00:00 * </pre> */ for (String str : hours) { System.out.println(str); } List<Long> monthLongValues = getMonthsOfYear(DateTime.now()); List<String> months = FluentIterable.from(monthLongValues) .transform(new Function<Long, String>() { public String apply(Long input) { DateTime d = new DateTime(input.longValue()); return d.monthOfYear().getAsText(Locale.CHINESE); } }).toList(); /** * <pre> * -- output * 一月 * 二月 * 三月 * 四月 * 五月 * 六月 * 七月 * 八月 * 九月 * 十月 * 十一月 * 十二月 * </pre> */ for (String str : months) { System.out.println(str); } System.out.println(Strings.repeat("=", 100)); run(); } /** * <pre> * @param date * @return date 所在天的小时列表 * 备注：这个方法的实际使用意义不大，因为每天都是24个小时，不会产生变化。 * 这里的例子就是为了展示DateTime的API * </pre> */ public static List<Long> getHoursTimeOfDate(DateTime date) { final ImmutableList.Builder<Long> hourTimeList = ImmutableList.builder(); DateTime firstHourTime = date.withTimeAtStartOfDay(); final DateTime nextDayFirstHourTime = firstHourTime.plusDays(1); while (firstHourTime.isBefore(nextDayFirstHourTime)) { hourTimeList.add(firstHourTime.getMillis()); firstHourTime = firstHourTime.plusHours(1); } return hourTimeList.build(); } /** * <pre> * @param date * @return date 所在月份的日期列表 * </pre> */ public static List<Long> getDaysOfMonth(DateTime date) { final ImmutableList.Builder<Long> dayList = ImmutableList.builder(); LocalDate firstDayOfMonth = date.toLocalDate().withDayOfMonth(1); final LocalDate nextMonthFirstDay = firstDayOfMonth.plusMonths(1); while (firstDayOfMonth.isBefore(nextMonthFirstDay)) { dayList.add(firstDayOfMonth.toDateTimeAtStartOfDay().getMillis()); firstDayOfMonth = firstDayOfMonth.plusDays(1); } return dayList.build(); } /** * <pre> * @param date * @return date 所在年份的月份列表 * 备注：这个方法的实际使用意义不大，因为每年都是12个月，不会产生变化。 * 这里的例子就是为了展示DateTime的API * </pre> */ public static List<Long> getMonthsOfYear(DateTime date) { final ImmutableList.Builder<Long> monthList = ImmutableList.builder(); LocalDate firstMonth = date.toLocalDate().withDayOfMonth(1).withMonthOfYear(1); final LocalDate nextYearFirstMonth = firstMonth.plusYears(1); while (firstMonth.isBefore(nextYearFirstMonth)) { monthList.add(firstMonth.toDateTimeAtStartOfDay().getMillis()); firstMonth = firstMonth.plusMonths(1); } return monthList.build(); } /** * <pre> * 官网的例子 * </pre> */ private static void run() { runInstant(); System.out.println(); runDateTime(); System.out.println(); } private static void runInstant() { System.out.println("Instant"); System.out.println("======="); System.out .println("Instant stores a point in the datetime continuum as millisecs from 1970-01-01T00:00:00Z"); System.out.println("Instant is immutable and thread-safe"); System.out.println(" in = new Instant()"); Instant in = new Instant(); System.out.println("Millisecond time: in.getMillis(): " + in.getMillis()); System.out.println("ISO string version: in.toString(): " + in.toString()); System.out.println("ISO chronology: in.getChronology(): " + in.getChronology()); System.out.println("UTC time zone: in.getDateTimeZone(): " + in.getZone()); System.out.println("Change millis: in.withMillis(0): " + in.withMillis(0L)); System.out.println(""); System.out.println("Convert to Instant: in.toInstant(): " + in.toInstant()); System.out.println("Convert to DateTime: in.toDateTime(): " + in.toDateTime()); System.out.println("Convert to MutableDT: in.toMutableDateTime(): " + in.toMutableDateTime()); System.out.println("Convert to Date: in.toDate(): " + in.toDate()); System.out.println(""); System.out.println(" in2 = new Instant(in.getMillis() + 10)"); Instant in2 = new Instant(in.getMillis() + 10); System.out.println("Equals ms and chrono: in.equals(in2): " + in.equals(in2)); System.out.println("Compare millisecond: in.compareTo(in2): " + in.compareTo(in2)); System.out.println("Compare millisecond: in.isEqual(in2): " + in.isEqual(in2)); System.out.println("Compare millisecond: in.isAfter(in2): " + in.isAfter(in2)); System.out.println("Compare millisecond: in.isBefore(in2): " + in.isBefore(in2)); } private static void runDateTime() { System.out.println("DateTime"); System.out.println("======="); System.out .println("DateTime stores a the date and time using millisecs from 1970-01-01T00:00:00Z internally"); System.out.println("DateTime is immutable and thread-safe"); System.out.println(" in = new DateTime()"); DateTime in = new DateTime(); System.out.println("Millisecond time: in.getMillis(): " + in.getMillis()); System.out.println("ISO string version: in.toString(): " + in.toString()); System.out.println("ISO chronology: in.getChronology(): " + in.getChronology()); System.out.println("Your time zone: in.getDateTimeZone(): " + in.getZone()); System.out.println("Change millis: in.withMillis(0): " + in.withMillis(0L)); System.out.println(""); System.out.println("Get year: in.getYear(): " + in.getYear()); System.out .println("Get monthOfYear: in.getMonthOfYear(): " + in.getMonthOfYear()); System.out.println("Get dayOfMonth: in.getDayOfMonth(): " + in.getDayOfMonth()); System.out.println("..."); System.out.println("Property access: in.dayOfWeek().get(): " + in.dayOfWeek().get()); System.out.println("Day of week as text: in.dayOfWeek().getAsText(): " + in.dayOfWeek().getAsText()); System.out.println("Day as short text: in.dayOfWeek().getAsShortText(): " + in.dayOfWeek().getAsShortText()); System.out.println("Day in french: in.dayOfWeek().getAsText(Locale.FRENCH):" + in.dayOfWeek().getAsText(Locale.FRENCH)); System.out.println("Max allowed value: in.dayOfWeek().getMaximumValue(): " + in.dayOfWeek().getMaximumValue()); System.out.println("Min allowed value: in.dayOfWeek().getMinimumValue(): " + in.dayOfWeek().getMinimumValue()); System.out.println("Copy & set to Jan: in.monthOfYear().setCopy(1): " + in.monthOfYear().setCopy(1)); System.out.println("Copy & add 14 months: in.monthOfYear().addCopy(14): " + in.monthOfYear().addToCopy(14)); System.out.println("Add 14 mnths in field:in.monthOfYear().addWrapFieldCopy(14): " + in.monthOfYear().addWrapFieldToCopy(14)); System.out.println("..."); System.out.println("Convert to Instant: in.toInstant(): " + in.toInstant()); System.out.println("Convert to DateTime: in.toDateTime(): " + in.toDateTime()); System.out.println("Convert to MutableDT: in.toMutableDateTime(): " + in.toMutableDateTime()); System.out.println("Convert to Date: in.toDate(): " + in.toDate()); System.out.println("Convert to Calendar: in.toCalendar(Locale.UK): " + in.toCalendar(Locale.UK).toString().substring(0, 46)); System.out.println("Convert to GregCal: in.toGregorianCalendar(): " + in.toGregorianCalendar().toString().substring(0, 46)); System.out.println(""); System.out.println(" in2 = new DateTime(in.getMillis() + 10)"); DateTime in2 = new DateTime(in.getMillis() + 10); System.out.println("Equals ms and chrono: in.equals(in2): " + in.equals(in2)); System.out.println("Compare millisecond: in.compareTo(in2): " + in.compareTo(in2)); System.out.println("Compare millisecond: in.isEqual(in2): " + in.isEqual(in2)); System.out.println("Compare millisecond: in.isAfter(in2): " + in.isAfter(in2)); System.out.println("Compare millisecond: in.isBefore(in2): " + in.isBefore(in2)); }} 0 0
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