【JAVA秒会技术之Joda-Time】满足你所有关于日期的处理

Joda-Time满足你所有关于日期的处理

 

      在日常的编程中，常常需要处理日期。但是使用 java.util.Calendar 类处理日期/时间，非常的麻烦。那么福音来了，博主给大家隆重的介绍一款新的类库Joda-Time！并且，已经将其封装成一个“日期处理万能工具类”。拿去直接用就好了，有没有很开心！

       在分享工具类之前，简单啰嗦几句关于“Joda-Time”的简单介绍：Joda-Time 令时间和日期值变得易于管理、操作和理解，事实上，易于使用是 Joda 的主要设计目标，其他目标包括可扩展性、完整的特性集以及对多种日历系统的支持，并且 Joda 与 JDK 是百分之百可互操作的，因此您无需替换所有 Java 代码，只需要替换执行日期/时间计算的那部分代码。

       好了，废话结束。直接上纯干货，Ctrl + C , Ctrl + V 拿走吧：

import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import java.util.Date;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.regex.Matcher;import java.util.regex.Pattern;import org.apache.log4j.Logger;import org.joda.time.DateTime;import org.joda.time.format.DateTimeFormat;import org.joda.time.format.DateTimeFormatter;/** * 日期处理万能工具类 * <p>Title: DateUtils</p>   * @author  Liyan   * @date    2017年10月26日 下午2:15:09 */public class DateUtils {private static Logger logger = Logger.getLogger(DateUtils.class);/** "yyyy-MM-dd HH:mm:ss"格式类型 */public final static String LONG_PATTERN = "yyyy-MM-dd HH:mm:ss";/** "yyyy-MM-dd HH:mm"格式类型 */public final static String MINUTE_PATTERN = "yyyy-MM-dd HH:mm";/** "yyyyMMddHHmmss"格式类型 */public final static String SHORT_PATTERN = "yyyyMMddHHmmss";/** "yyyy-MM-dd"格式类型 */public final static String PATTERN_THREE = "yyyy-MM-dd";/** "yyyyMM"格式类型 */public final static String PATTERN_FOUR = "yyyyMM";/** "HH:mm:ss"格式类型 */public final static String SHORTTIME_PATTERN = "HH:mm:ss";/** 常见日期类型数组 */public final static String[] normalDateFormatArray = new String[]{"yyyy-MM-dd","yyyy/MM/dd","yyyyMMdd"};/** 分钟类型 */public static final int MINITE_TYPE = 0;/** 小时类型 */public static final int HOUR_TYPE = 1;/** 日类型 */public static final int DAY_TYPE = 2;/** 月类型 */public static final int MONTH_TYPE = 3;/** 年类型 */public static final int YEAR_TYPE = 4;public static String formatTime(Date date) {if (null == date) {return "";}SimpleDateFormat sdf = new SimpleDateFormat(LONG_PATTERN);return sdf.format(date);}public static String formatShortTime(Date date) {if (null == date) {return "";}SimpleDateFormat sdf = new SimpleDateFormat(SHORTTIME_PATTERN);return sdf.format(date);}public static Date parseDate(String source) {return parseDate(source, PATTERN_THREE);}public static Date parseDate(String source, String pattern) {DateTimeFormatter fmt = DateTimeFormat.forPattern(pattern);return fmt.parseLocalDateTime(source).toDate();}public static Date parseTime(String source) {DateTimeFormatter fmt = DateTimeFormat.forPattern(LONG_PATTERN);return fmt.parseLocalDateTime(source).toDate();}/** * 日期类型字符串转换成日期 *  * @param strDate 日期的字符串 * @param pattern 日期的格式，如：yyyy/MM/dd yyyy-MM-dd yyyy-MM-dd HH:mm:ss. */public static Date stringToDate(String strDate, String pattern) {if (strDate == null || strDate.trim().length() <= 0)return null;SimpleDateFormat sdf = new SimpleDateFormat(pattern);try {return sdf.parse(strDate);} catch (ParseException e) {logger.warn("Parse date error! strDate [" + strDate + "], pattern [" + pattern + "].", e);return null;}}/** * 字符串，不指定格式的转换成日期. *  * @param strDate 日期的字符串 * @return the date 日期类，如：yyyy/MM/dd yyyy-MM-dd yyyy-MM-dd HH:mm:ss. */public static Date stringToDate(String strDate) {if (strDate == null || strDate.trim().length() <= 0)return null;for(String df:normalDateFormatArray){SimpleDateFormat sdf = new SimpleDateFormat(df);try {return sdf.parse(strDate);} catch (ParseException e) {continue;}}logger.warn("Parse date error! strDate [" + strDate + "], pattern [yyyy-MM-dd][yyyy/MM/dd][yyyyMMdd].");return null;}/** * 检验日期字符串，是否为"yyyy-MM-dd"格式 *  * @param strDate 日期字符串 * @return true 是  */public static boolean checkDate(String strDate) {if (strDate == null || strDate.length() == 0)return true;try {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");sdf.parse(strDate);} catch (ParseException e) {logger.info("Wrong strDate [" + strDate + "], pattern [yyyy-MM-dd].");return false;}return true;}/** * 日期类转换成指定日期格式的字符串 *  * @param date 日期 * @param pattern 日期格式 * @return the string 日期字符串 */public static String dateToString(Date date, String pattern) {if (date == null)return null;SimpleDateFormat sdf = new SimpleDateFormat(pattern);return sdf.format(date);}/** * 对日期的【秒】进行加 *  * @param date 日期 —— new Date() * @param addSeconds 需要对【秒】进行加减的天数 * @return the date 增/减几秒后的日期 */public static Date dateAddSeconds(Date date, int addSeconds) {DateTime dateTime = new DateTime(date);return dateTime.plusSeconds(addSeconds).toDate();}/** * 对日期的【分】进行加 *  * @param date 日期 —— new Date() * @param addMinutes 需要对【分】进行加减的天数 * @return the date 增/减几分后的日期 */public static Date dateAddMinutes(Date date, int addMinutes) {DateTime dateTime = new DateTime(date);return dateTime.plusMinutes(addMinutes).toDate();}/** * 对日期的【小时】进行加 *  * @param date 日期 —— new Date() * @param addMinutes 需要对【小时】进行加减的天数 * @return the date 增/减几小时后的日期 */public static Date dateAddHours(Date date, int addHours) {DateTime dateTime = new DateTime(date);return dateTime.plusHours(addHours).toDate();}/** * 对日期的【日】进行加 *  * @param date 日期 —— new Date() * @param addDays 需要对【日】进行加减的天数 * @return the date 增/减几天后的日期 */public static Date dateAddDays(Date date, int addDays) {DateTime dateTime = new DateTime(date);return dateTime.plusDays(addDays).toDate();}/** * 对日期的【月】进行加 *  * @param date 日期 —— new Date() * @param addMonths 需要对【月】进行加减的天数。 * @return the date 增/减几【月】后的日期 */public static Date dateAddMonths(Date date, int addMonths) {if (date == null)return null;Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.MONTH, addMonths);return cal.getTime();}/** * 对日期的【周】进行加 *  * @param date 日期 —— new Date() * @param addWeeks 需要对【周】进行加减的天数。 * @return the date 增/减几【周】后的日期 */public static Date dateAddWeeks(Date date, int addWeeks) {if (date == null)return null;Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.WEEK_OF_YEAR, addWeeks);return cal.getTime();}/** * 对日期的【年】进行加 *  * @param date —— new Date() * @param addYears 需要对【年】进行加减的天数。 * @return the date 增/减几【年】后的日期 */public static Date dateAddYears(Date date, int addYears) {if (date == null)return null;Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.YEAR, addYears);return cal.getTime();}/** * 计算两个日期之间的间隔时间 *  * @param beginDate 起始日期 * @param endDate 结束日期 * @return the date length 间隔时间 */public static int getDateLength(Date beginDate, Date endDate) {int length = 0;if (beginDate == null || endDate == null)return length;length = (int) ((endDate.getTime() - beginDate.getTime()) / (1000 * 60 * 60 * 24));length++;return length;}/** * 获取某天的起始时间 *  * @param strDateSegment 字符串类型的日期 * @return the date begin 字符串类型的日期 + " 00:00:00" */public static String getDateBegin(String strDateSegment) {if (strDateSegment == null || strDateSegment.length() <= 0)return null;return strDateSegment + " 00:00:00";}/** * 获取某天的结束时间 *  * @param strDateSegment 字符串类型的日期 * @return the date end 字符串类型的日期 + " 23:59:59" */public static String getDateEnd(String strDateSegment) {if (strDateSegment == null || strDateSegment.length() <= 0)return null;return strDateSegment + " 23:59:59";}/** * 检查录入的日期格式（yyyyMMdd-yyyyMMdd或yyyyMMdd）. *  * @param strDate 待检验的日期字符串 * @return true, if successful */public static boolean checkLongDatePattern(String strDate) {String ps = "^\\d{4}\\d{1,2}\\d{1,2}-\\d{4}\\d{1,2}\\d{1,2}$|^\\d{4}\\d{1,2}\\d{1,2}$";Pattern p = Pattern.compile(ps);Matcher m = p.matcher(strDate);if (!m.matches()) {return false;}return true;}/** * 检查录入的日期格式（yyyy-MM-dd）. *  * @param strDate 待检验的日期字符串 * @return true, if successful */public static boolean checkDatePattern(String strDate) {String ps = "^\\d{4}-\\d{1,2}-\\d{1,2}$";Pattern p = Pattern.compile(ps);Matcher m = p.matcher(strDate);if (!m.matches()) {return false;}return true;}/** * 检查和格式化日期 param:strDate  * 如:2007-06-01--2007-12-01, * 2007-06-18,20070601--20071201,20070718.  * return:HashMap 格式化以后的date对象：beginDate和endDate  * throws  ParseException 输入的日期格式错误 *  * @param strDate the str date * @return the list * @throws ParseException 输入的日期格式错误 */public static List<Date> transformStrDateToListDate(String strDate) throws ParseException {List<Date> dateList = new ArrayList<Date>();String[] tempStrDate = strDate.split(",");for (int i = 0; i < tempStrDate.length; i++) {// 将字符串格式化为“yyyy-MM-dd--yyyy-MM-dd”Date tempDate = stringToDate(tempStrDate[i], "yyyy-MM-dd");dateList.add(tempDate);}return dateList;}/** * 检查和格式化日期 param:strDate 如:2007-06-01--2007-12-01,2007-06-18,20070601--20071201,20070718 return:HashMap 格式化以后String型的日期：beginDate和endDate throws * ParseException 输入的日期格式错误 *  * @param strDate the str date * @return the hash map * @throws ParseException he parse exception */public static HashMap<String, String> formatStrDateToDateMap(String strDate) throws ParseException {HashMap<String, String> dateMap = new HashMap<String, String>();Date beginDate = null;Date endDate = null;if (strDate == null || strDate.trim().length() == 0)return null;if (strDate.indexOf("--") > 0) {String[] tempDate = strDate.split("--");if (tempDate.length == 2) {if (tempDate[0].indexOf("-") > 0) {beginDate = stringToDateThrowsExe(tempDate[0], "yyyy-MM-dd");} else {beginDate = stringToDateThrowsExe(tempDate[0], "yyyyMMdd");}if (tempDate[1].indexOf("-") > 0) {endDate = stringToDateThrowsExe(tempDate[1], "yyyy-MM-dd");} else {endDate = stringToDateThrowsExe(tempDate[1], "yyyyMMdd");}} else if (tempDate.length == 1) {if (tempDate[0].indexOf("-") > 0) {beginDate = stringToDateThrowsExe(tempDate[0], "yyyy-MM-dd");endDate = stringToDateThrowsExe(tempDate[0], "yyyy-MM-dd");} else {beginDate = stringToDateThrowsExe(tempDate[0], "yyyyMMdd");endDate = stringToDateThrowsExe(tempDate[0], "yyyyMMdd");}}} else {if (strDate.indexOf("-") > 0) {beginDate = stringToDateThrowsExe(strDate, "yyyy-MM-dd");endDate = stringToDateThrowsExe(strDate, "yyyy-MM-dd");} else {beginDate = stringToDateThrowsExe(strDate, "yyyyMMdd");endDate = stringToDateThrowsExe(strDate, "yyyyMMdd");}}dateMap.put("beginDate", dateToString(beginDate, "yyyy-MM-dd"));dateMap.put("endDate", dateToString(endDate, "yyyy-MM-dd"));return dateMap;}/** * String to date throws exe. *  * @param strDate the str date * @param pattern the pattern * @return the java.util. date * @throws ParseException the parse exception */public static Date stringToDateThrowsExe(String strDate, String pattern) throws ParseException {if (strDate == null || strDate.trim().length() <= 0)return null;SimpleDateFormat sdf = new SimpleDateFormat(pattern);return sdf.parse(strDate);}/** * 检查日期的先后顺序 param:beginDate endDate return:boolean boolean beginDate<=endDate 返回true；beginDate>endDate返回false *  * @param beginDate the begin date * @param endDate the end date * @return true, if successful */public static boolean compareDate(String beginDate, String endDate) {if (endDate == null || endDate.trim().length() == 0)endDate = beginDate;Date bDate = stringToDate(beginDate, "yyyy-MM-dd");Date eDate = stringToDate(endDate, "yyyy-MM-dd");if (bDate == null || eDate == null)return true;if (!bDate.after(eDate))return true;return false;}/** * 检查输入的日期字符串中的重复日期 param:strDate 格式如：2007-06-01--2007-12-01,2007-06-18,20070601--20071201,20070618 return:list 字符串日期列表 *  * @param strDate the str date * @return the list * @throws ParseException the parse exception */public static List<String> checkRepeatDate(String strDate) throws ParseException {List<String> repeatDateList = new ArrayList<String>();Map<Date, String> mediaPlanDateMap = new HashMap<Date, String>();String[] tempStrDate = strDate.split(",");for (int k = 0; k < tempStrDate.length; k++) {HashMap<String, String> dateMap = new HashMap<String, String>();dateMap = DateUtils.formatStrDateToDateMap(tempStrDate[k]);if (dateMap == null)continue;String strBeginDate = (String) dateMap.get("beginDate");String strEndDate = (String) dateMap.get("endDate");if (strEndDate == null || strEndDate.length() == 0) {strEndDate = strBeginDate;}// 检查同一个媒介计划有没有重复日期Date tmpBeginDate = null;Date tmpEndDate = null;if (strBeginDate.indexOf("-") > 0) {tmpBeginDate = DateUtils.stringToDate(strBeginDate, "yyyy-MM-dd");tmpEndDate = DateUtils.stringToDate(strEndDate, "yyyy-MM-dd");} else {tmpBeginDate = DateUtils.stringToDate(strBeginDate, "yyyyMMdd");tmpEndDate = DateUtils.stringToDate(strEndDate, "yyyyMMdd");}int len = DateUtils.getDateLength(tmpBeginDate, tmpEndDate);Date tmpDate = null;for (int j = 0; j < len; j++) {tmpDate = DateUtils.dateAddDays(tmpBeginDate, j);if (mediaPlanDateMap.size() > 0) {if ("1".equals(mediaPlanDateMap.get(tmpDate))) {repeatDateList.add(DateUtils.dateToString(tmpDate, "yyyy-MM-dd"));} else {mediaPlanDateMap.put(tmpDate, "1");}} else {mediaPlanDateMap.put(tmpDate, "1");}}}return repeatDateList;}/** * 获得给定日期中的【年】. *  * @param date 日期 * @return 日期中的 年 */public static String parseYear(Date date) {return new SimpleDateFormat(SHORT_PATTERN, java.util.Locale.CHINA).format(date).substring(0, 4);}/** * 获得当前日期中的【年】. *  * @return 日期中的 年 */public static String parseYear() {Date date = Calendar.getInstance().getTime();return new SimpleDateFormat(SHORT_PATTERN, java.util.Locale.CHINA).format(date).substring(0, 4);}/** * 获取"yyyy-MM-dd"格式的日期字符串 *  * @param date 需要转换成"yyyy-MM-dd"的日期类 * @return the string 转换后的字符串 */public static String dateToSimpleString(java.util.Date date) {SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");return format.format(date);}/** * 获取"yyyy-MM-dd"格式的日期 *  * @param String the date 需要转换成"yyyy-MM-dd"的日期字符串 * @return the java.util. date 转换后的日期类 */public static java.util.Date stringSimpleToDate(String date) {try {SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");return (java.util.Date) format.parseObject(date);} catch (Exception e) {e.printStackTrace();return null;}}/** * 获取月份所属季度 *  * @param month 月份 * @return the quarter by month 所属季度 */public static int getQuarterByMonth(int month) {if (month >= 1 && month <= 12) {return ((month + 2) / 3);} else {return -1;}}/** * 得到date所在周的周日（第一天）. *  * @param date the date * @return the sunday * @return */@SuppressWarnings("static-access")public static Date getSunday(Date date) {try {Calendar c = Calendar.getInstance();c.setTime(date);int intWeek = c.get(c.DAY_OF_WEEK);c.add(c.DATE, -(intWeek - 1));date = (c.getTime());} catch (Exception e) {System.err.println("ReportGatekeeper.java--getSunday:" + e);}return date;}/** * * 得到date所在周，周六（最后一天）. *  * @param date the date * @return the saturday * @return */@SuppressWarnings("static-access")public static Date getSaturday(Date date) {try {Calendar c = Calendar.getInstance();c.setTime(getSunday(date));c.add(c.DATE, 6);date = (c.getTime());} catch (Exception e) {System.err.println("ReportGatekeeper.java--getSunday:" + e);}return date;}/** * 得到某月的第一天 *  * @param date the date * @return the first day in month */public static Date getFirstDayInMonth(Date date) {String dateString = DateUtils.dateToSimpleString(date);dateString = dateString.substring(0, 8);dateString = dateString.concat("01");date = DateUtils.stringToDate(dateString);return date;}/** * 得到某个季度的第一天 *  * @param date the date * @return the first day in quarter */public static Date getFirstDayInQuarter(Date date) {String dateString = DateUtils.dateToSimpleString(date);String t = dateString.substring(5, 7);dateString = dateString.substring(0, 5);int i = new Integer(t).intValue();int q = getQuarterByMonth(i);int month = (q - 1) * 3 + 1;if (month < 10)dateString = dateString.concat("0" + month);elsedateString = dateString.concat("" + month);dateString = dateString.concat("-01");date = DateUtils.stringToDate(dateString);return date;}/** * 得到某年的第一天 *  * @param date the date * @return the first day in year */public static Date getFirstDayInYear(Date date) {String dateString = DateUtils.dateToSimpleString(date);String t = dateString.substring(0, 4);dateString = t.concat("-01-01");date = DateUtils.stringToDate(dateString);return date;}/** * 得到某年的最后一天 *  * @param date the date * @return the last day in year */public static Date getLastDayInYear(Date date) {Date tmp = DateUtils.getFirstDayInYear(date);tmp = DateUtils.dateAddYears(tmp, 1);tmp = DateUtils.dateAddDays(tmp, -1);return tmp;}/** * 得到某月的最后一天 *  * @param firstDayInMonth the first day in month * @return the last day in month */public static Date getLastDayInMonth(Date firstDayInMonth) {Date tmp = DateUtils.dateAddMonths(firstDayInMonth, 1);tmp = DateUtils.getFirstDayInMonth(tmp);tmp = DateUtils.dateAddDays(tmp, -1);return tmp;}/** * 得到某个季度的最后一天 *  * @param value the value * @return the last day in quarter */public static Date getLastDayInQuarter(Date value) {Date tmp = DateUtils.getFirstDayInQuarter(value);tmp = DateUtils.dateAddMonths(tmp, 3);tmp = DateUtils.dateAddDays(tmp, -1);return tmp;}/** * 获取一周的第一天 周一为第一天 *  * @param date * @return Date */public static Date getFirstDayOfWeek(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;if (dayOfWeek == 0) {dayOfWeek = 7;}return org.apache.commons.lang.time.DateUtils.addDays(date, 1 - dayOfWeek);}/** * 获取一周最后一天 周一为第一天 *  * @param date * @return Date */public static Date getLastDayOfWeek(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;if (dayOfWeek == 0) {dayOfWeek = 7;}return org.apache.commons.lang.time.DateUtils.addDays(date, 7 - dayOfWeek);}public static String formatDate(Date date) {if (null == date) {return "";}String dateStr = new SimpleDateFormat(PATTERN_THREE, java.util.Locale.CHINA).format(date);return dateStr;}/** * 返回当前日期的格式化字符串. *  * @param tag 0:yyyy-MM-dd HH:mm:ss;1:yyyyMMddHHmmss;2:yyyy-MM-dd;3:yyyyMM * @return 格式化成字符串的日期 */public static String formatDate(int tag) {Date date = Calendar.getInstance().getTime();String dateStr = null;switch (tag) {case 0:dateStr = new SimpleDateFormat(LONG_PATTERN, java.util.Locale.CHINA).format(date);break;case 1:dateStr = new SimpleDateFormat(SHORT_PATTERN, java.util.Locale.CHINA).format(date);break;case 2:dateStr = new SimpleDateFormat(PATTERN_THREE, java.util.Locale.CHINA).format(date);break;case 3:dateStr = new SimpleDateFormat(PATTERN_FOUR, java.util.Locale.CHINA).format(date);break;default:dateStr = new SimpleDateFormat(LONG_PATTERN, java.util.Locale.CHINA).format(date);break;}return dateStr;}public static boolean dateCompare(Date date1, Date date2) {if (date1.getTime() < date2.getTime()) {return true;}return false;}/** * 计算两个日期间的差值，返回指定单位类型 *  * @param startdate 起始日期 * @param enddate 急速日期 * @param iType 0-分钟；1-小时；2-天；3-月；4-年。 */public static int dateCal(Date startdate, Date enddate, int iType) {Calendar calBegin = parseDateTime(startdate);Calendar calEnd = parseDateTime(enddate);long lBegin = calBegin.getTimeInMillis();long lEnd = calEnd.getTimeInMillis();int ss = (int) ((lEnd - lBegin) / 1000L);int min = ss / 60;int hour = min / 60;int day = hour / 24;if (iType == MINITE_TYPE)return min;if (iType == HOUR_TYPE)return hour;if (iType == DAY_TYPE)return day;elsereturn -1;}public static Calendar parseDateTime(Date d) {Calendar cal = Calendar.getInstance();int yy = 0, mm = 0, dd = 0, hh = 0, mi = 0, ss = 0;cal.setTime(d);yy = cal.get(Calendar.YEAR);mm = cal.get(Calendar.MONTH);dd = cal.get(Calendar.DAY_OF_MONTH);hh = cal.get(Calendar.HOUR_OF_DAY);mi = cal.get(Calendar.MINUTE);ss = cal.get(Calendar.SECOND);cal.set(yy, mm, dd, hh, mi, ss);return cal;}/** * 测试main函数 *  * @param args the arguments * @throws ParseException  */public static void main(String args[]) throws ParseException {//测试获取当前时间，分位+1Date dateAddMinutes = DateUtils.dateAddMinutes(new Date(),1);String dateToString = DateUtils.dateToString(dateAddMinutes, LONG_PATTERN);System.out.println(dateToString);}}