第一类：

package com.chinamcloud.spiderMember.util;import org.apache.commons.lang3.StringUtils;
import org.joda.time.DateTime;import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;/*** 日期工具类*/
@SuppressWarnings("ALL")
public class DateUtil {/*** 全局默认日期格式*/public static final String Format_Date = "yyyy-MM-dd";/*** 全局默认日期格式*/public static final String Format_Date_Dir = "yyyy/MM/dd";/*** 全局默认时间格式*/public static final String Format_Time = "HH:mm:ss";/*** 全局默认日期时间格式*/public static final String Format_DateTime = "yyyy-MM-dd HH:mm:ss";/*** 全局默认日期时间格式*/public static final String Format_DateTime1 = "yyyyMMddhhmmss";/*** 得到以yyyy-MM-dd格式表示的当前日期字符串*/public static String getCurrentDate() {return new SimpleDateFormat(Format_Date).format(new Date());}/*** 得到以yyyy/MM/dd格式表示的当前日期字符串dir*/public static String getCurrentDateDir() {return new SimpleDateFormat(Format_Date_Dir).format(new Date());}/*** 得到以yyyy/MM/dd格式表示的当前日期字符串dir*/public static String getCurrentDateDir(Date date) {return new SimpleDateFormat(Format_Date_Dir).format(date);}/*** 得到以format格式表示的当前日期字符串*/public static String getCurrentDate(String format) {SimpleDateFormat t = new SimpleDateFormat(format);return t.format(new Date());}/*** 得到以HH:mm:ss表示的当前时间字符串*/public static String getCurrentTime() {return new SimpleDateFormat(Format_Time).format(new Date());}/*** 得到以format格式表示的当前时间字符串*/public static String getCurrentTime(String format) {SimpleDateFormat t = new SimpleDateFormat(format);return t.format(new Date());}/*** 得到以yyyy-MM-dd HH:mm:ss表示的当前时间字符串*/public static String getCurrentDateTime() {String format = DateUtil.Format_Date + " " + DateUtil.Format_Time;return getCurrentDateTime(format);}/*** 今天是星期几** @return*/public static int getDayOfWeek() {Calendar cal = Calendar.getInstance();return cal.get(Calendar.DAY_OF_WEEK);}/*** 指定日期是星期几** @param date* @return*/public static int getDayOfWeek(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.DAY_OF_WEEK);}/*** 今天是本月的第几天** @return*/public static int getDayOfMonth() {Calendar cal = Calendar.getInstance();return cal.get(Calendar.DAY_OF_MONTH);}/*** 指定日期是当月的第几天** @param date* @return*/public static int getDayOfMonth(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.DAY_OF_MONTH);}/*** 获取某一个月的天数** @param date* @return*/public static int getMaxDayOfMonth(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.getActualMaximum(Calendar.DATE);}/*** 以yyyy-MM-dd格式获取某月的第一天** @param date* @return*/public static String getFirstDayOfMonth(String date) {Calendar cal = Calendar.getInstance();cal.setTime(parse(date));cal.set(Calendar.DAY_OF_MONTH, 1);return new SimpleDateFormat(Format_Date).format(cal.getTime());}/*** 今天是本年的第几天** @return*/public static int getDayOfYear() {Calendar cal = Calendar.getInstance();return cal.get(Calendar.DAY_OF_YEAR);}/*** 指定日期是当年的第几天** @param date* @return*/public static int getDayOfYear(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.DAY_OF_YEAR);}/*** 以yyyy-MM-dd解析字符串date，并返回其表示的日期是周几** @param date* @return*/public static int getDayOfWeek(String date) {Calendar cal = Calendar.getInstance();cal.setTime(parse(date));return cal.get(Calendar.DAY_OF_WEEK);}/*** 以yyyy-MM-dd解析字符串date，并返回其表示的日期是当月第几天** @param date* @return*/public static int getDayOfMonth(String date) {Calendar cal = Calendar.getInstance();cal.setTime(parse(date));return cal.get(Calendar.DAY_OF_MONTH);}/*** 以yyyy-MM-dd解析字符串date，并返回其表示的日期是当年第几天** @param date* @return*/public static int getDayOfYear(String date) {Calendar cal = Calendar.getInstance();cal.setTime(parse(date));return cal.get(Calendar.DAY_OF_YEAR);}/*** 以指定的格式返回当前日期时间的字符串** @param format* @return*/public static String getCurrentDateTime(String format) {SimpleDateFormat t = new SimpleDateFormat(format);return t.format(new Date());}/*** 以yyyy-MM-dd格式输出只带日期的字符串*/public static String toString(Date date) {if (date == null) {return "";}return new SimpleDateFormat(Format_Date).format(date);}/*** 以yyyy-MM-dd HH:mm:ss输出带有日期和时间的字符串*/public static String toDateTimeString(Date date) {if (date == null) {return "";}return new SimpleDateFormat(Format_DateTime).format(date);}/*** 以yyyy-MM-dd HH:mm:ss输出带有日期和时间的字符串*/public static String toDateTimeString(DateTime date) {if (date == null) {return "";}return  org.joda.time.format.DateTimeFormat.forPattern(Format_DateTime).print(date);}/*** 按指定的format输出日期字符串*/public static String toString(Date date, String format) {SimpleDateFormat t = new SimpleDateFormat(format);return t.format(date);}/*** 以HH:mm:ss输出只带时间的字符串*/public static String toTimeString(Date date) {if (date == null) {return "";}return new SimpleDateFormat(Format_Time).format(date);}/*** 以yyyy-MM-dd解析两个字符串，并比较得到的两个日期的大小** @param date1* @param date2* @return*/public static int compare(String date1, String date2) {return compare(date1, date2, Format_Date);}/*** 以HH:mm:ss解析两个字符串，并比较得到的两个时间的大小** @param time1* @param time2* @return*/public static int compareTime(String time1, String time2) {return compareTime(time1, time2, Format_Time);}/*** 以指定格式解析两个字符串，并比较得到的两个日期的大小** @param date1* @param date2* @param format* @return*/public static int compare(String date1, String date2, String format) {Date d1 = parse(date1, format);Date d2 = parse(date2, format);return d1.compareTo(d2);}/*** 以指定解析两个字符串，并比较得到的两个时间的大小** @param time1* @param time2* @param format* @return*/public static int compareTime(String time1, String time2, String format) {String[] arr1 = time1.split(":");String[] arr2 = time2.split(":");if (arr1.length < 2) {throw new RuntimeException("错误的时间值:" + time1);}if (arr2.length < 2) {throw new RuntimeException("错误的时间值:" + time2);}int h1 = Integer.parseInt(arr1[0]);int m1 = Integer.parseInt(arr1[1]);int h2 = Integer.parseInt(arr2[0]);int m2 = Integer.parseInt(arr2[1]);int s1 = 0, s2 = 0;if (arr1.length == 3) {s1 = Integer.parseInt(arr1[2]);}if (arr2.length == 3) {s2 = Integer.parseInt(arr2[2]);}if (h1 < 0 || h1 > 23 || m1 < 0 || m1 > 59 || s1 < 0 || s1 > 59) {throw new RuntimeException("错误的时间值:" + time1);}if (h2 < 0 || h2 > 23 || m2 < 0 || m2 > 59 || s2 < 0 || s2 > 59) {throw new RuntimeException("错误的时间值:" + time2);}if (h1 != h2) {return h1 > h2 ? 1 : -1;} else {if (m1 == m2) {if (s1 == s2) {return 0;} else {return s1 > s2 ? 1 : -1;}} else {return m1 > m2 ? 1 : -1;}}}/*** 判断指定的字符串是否符合HH:mm:ss格式，并判断其数值是否在正常范围** @param time* @return*/public static boolean isTime(String time) {String[] arr = time.split(":");if (arr.length < 2) {return false;}try {int h = Integer.parseInt(arr[0]);int m = Integer.parseInt(arr[1]);int s = 0;if (arr.length == 3) {s = Integer.parseInt(arr[2]);}if (h < 0 || h > 23 || m < 0 || m > 59 || s < 0 || s > 59) {return false;}} catch (Exception e) {return false;}return true;}/*** 判断指定的字符串是否符合yyyy:MM:ss格式，但判断其数据值范围是否正常** @param date* @return*/public static boolean isDate(String date) {String[] arr = date.split("-");if (arr.length < 3) {return false;}try {int y = Integer.parseInt(arr[0]);int m = Integer.parseInt(arr[1]);int d = Integer.parseInt(arr[2]);if (y < 0 || m > 12 || m < 0 || d < 0 || d > 31) {return false;}} catch (Exception e) {return false;}return true;}/*** 判断指定日期是否是周末** @param date* @return*/public static boolean isWeekend(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);int t = cal.get(Calendar.DAY_OF_WEEK);if (t == Calendar.SATURDAY || t == Calendar.SUNDAY) {return true;}return false;}/*** 以yyyy-MM-dd解析指定字符串，并判断相应的日期是否是周末** @param str* @return*/public static boolean isWeekend(String str) {return isWeekend(parse(str));}/*** 将obj转换成Date* @param obj* @return*/public static Date getDate(Object obj){Date date =null;try{try{date = (Date)obj;}catch (Exception e) {try{date =parseDateTime(obj.toString());}catch (Exception e1) {// TODO: handle exception}}if(date==null){try{DateTime dateTime = (DateTime)obj;date = new Date(dateTime.getMillis());}catch (Exception e) {throw new RuntimeException(obj+"非标准时间格式");}}}catch (Exception e) {}return date;}/*** 将obj转换成getDateTime* @param obj* @return*/public static DateTime getDateTime(Object obj){DateTime dateTime =null;try{try{dateTime = (DateTime)obj;}catch (Exception e) {}if(dateTime==null){try{Date date=null;try{date = (Date)obj;}catch (Exception e) {try{date =parseDateTime(obj.toString());}catch (Exception e1) {// TODO: handle exception}}dateTime = new DateTime(date.getTime());}catch (Exception e) {throw new RuntimeException(obj+"非标准时间格式");}}}catch (Exception e) {}return dateTime;}/*** 以yyyy-MM-dd解析指定字符串，返回相应java.util.Date对象** @param str* @return*/public static Date parse(String str) {if (StringUtil.isEmpty(str)) {return null;}try {return new SimpleDateFormat(Format_Date).parse(str);} catch (ParseException e) {e.printStackTrace();return null;}}/*** 按指定格式解析字符串，并返回相应的java.util.Date对象** @param str* @param format* @return*/public static Date parse(String str, String format) {if (StringUtil.isEmpty(str)) {return null;}try {SimpleDateFormat t = new SimpleDateFormat(format);return t.parse(str);} catch (ParseException e) {//   e.printStackTrace();return null;}}/*** 以yyyy-MM-dd HH:mm:ss格式解析字符串，并返回相应的java.util.Date对象** @param str* @return*/public static Date parseDateTime(String str) {if (StringUtil.isEmpty(str)) {return null;}if (str.length() <= 10) {return parse(str);}try {return new SimpleDateFormat(Format_DateTime).parse(str);} catch (ParseException e) {//  e.printStackTrace();return null;}}/*** 以指定格式解析字符串，并返回相应的java.util.Date对象** @param str* @param format* @return*/public static Date parseDateTime(String str, String format) {if (StringUtil.isEmpty(str)) {return null;}try {SimpleDateFormat t = new SimpleDateFormat(format);return t.parse(str);} catch (ParseException e) {// e.printStackTrace();return null;}}/*** 日期date上加count分钟，count为负表示减*/public static Date addMinute(Date date, int count) {return new Date(date.getTime() + 60000L * count);}/*** 日期date上加count小时，count为负表示减*/public static Date addHour(Date date, int count) {return new Date(date.getTime() + 3600000L * count);}/*** 日期date上加count天，count为负表示减*/public static Date addDay(Date date, int count) {return new Date(date.getTime() + 86400000L * count);}/*** 日期date上加count星期，count为负表示减*/public static Date addWeek(Date date, int count) {Calendar c = Calendar.getInstance();c.setTime(date);c.add(Calendar.WEEK_OF_YEAR, count);return c.getTime();}/*** 日期date上加count月，count为负表示减*/public static Date addMonth(Date date, int count) {/* ${_ZVING_LICENSE_CODE_} */Calendar c = Calendar.getInstance();c.setTime(date);c.add(Calendar.MONTH, count);return c.getTime();}/*** 日期date上加count年，count为负表示减*/public static Date addYear(Date date, int count) {Calendar c = Calendar.getInstance();c.setTime(date);c.add(Calendar.YEAR, count);return c.getTime();}/*** 人性化显示时间日期,date格式为：yyyy-MM-dd HH:mm:ss** @param date* @return*/public static String toDisplayDateTime(String date) {if (StringUtil.isEmpty(date)) {return null;}try {if (isDate(date)) {return toDisplayDateTime(parse(date));} else {SimpleDateFormat t = new SimpleDateFormat(Format_DateTime);Date d = t.parse(date);return toDisplayDateTime(d);}} catch (ParseException e) {e.printStackTrace();return "不是标准格式时间!";}}/*** 人性化显示时间日期** @param date* @return*/public static String toDisplayDateTime(Date date) {long minite = (System.currentTimeMillis() - date.getTime()) / 60000L;if (minite < 60) {return toString(date, "yyyy-MM-dd") + " " + minite + "分钟前";}if (minite < 60 * 24) {return toString(date, "yyyy-MM-dd") + " " + minite / 60L + "小时前";} else {return toString(date, "yyyy-MM-dd") + " " + minite / 1440L + "天前";}}public static String convertChineseNumber(String strDate) {strDate = StringUtil.replaceEx(strDate, "一十一", "11");strDate = StringUtil.replaceEx(strDate, "一十二", "12");strDate = StringUtil.replaceEx(strDate, "一十三", "13");strDate = StringUtil.replaceEx(strDate, "一十四", "14");strDate = StringUtil.replaceEx(strDate, "一十五", "15");strDate = StringUtil.replaceEx(strDate, "一十六", "16");strDate = StringUtil.replaceEx(strDate, "一十七", "17");strDate = StringUtil.replaceEx(strDate, "一十八", "18");strDate = StringUtil.replaceEx(strDate, "一十九", "19");strDate = StringUtil.replaceEx(strDate, "二十一", "21");strDate = StringUtil.replaceEx(strDate, "二十二", "22");strDate = StringUtil.replaceEx(strDate, "二十三", "23");strDate = StringUtil.replaceEx(strDate, "二十四", "24");strDate = StringUtil.replaceEx(strDate, "二十五", "25");strDate = StringUtil.replaceEx(strDate, "二十六", "26");strDate = StringUtil.replaceEx(strDate, "二十七", "27");strDate = StringUtil.replaceEx(strDate, "二十八", "28");strDate = StringUtil.replaceEx(strDate, "二十九", "29");strDate = StringUtil.replaceEx(strDate, "十一", "11");strDate = StringUtil.replaceEx(strDate, "十二", "12");strDate = StringUtil.replaceEx(strDate, "十三", "13");strDate = StringUtil.replaceEx(strDate, "十四", "14");strDate = StringUtil.replaceEx(strDate, "十五", "15");strDate = StringUtil.replaceEx(strDate, "十六", "16");strDate = StringUtil.replaceEx(strDate, "十七", "17");strDate = StringUtil.replaceEx(strDate, "十八", "18");strDate = StringUtil.replaceEx(strDate, "十九", "19");strDate = StringUtil.replaceEx(strDate, "十", "10");strDate = StringUtil.replaceEx(strDate, "二十", "20");strDate = StringUtil.replaceEx(strDate, "三十", "20");strDate = StringUtil.replaceEx(strDate, "三十一", "31");strDate = StringUtil.replaceEx(strDate, "零", "0");strDate = StringUtil.replaceEx(strDate, "○", "0");strDate = StringUtil.replaceEx(strDate, "一", "1");strDate = StringUtil.replaceEx(strDate, "二", "2");strDate = StringUtil.replaceEx(strDate, "三", "3");strDate = StringUtil.replaceEx(strDate, "四", "4");strDate = StringUtil.replaceEx(strDate, "五", "5");strDate = StringUtil.replaceEx(strDate, "六", "6");strDate = StringUtil.replaceEx(strDate, "七", "7");strDate = StringUtil.replaceEx(strDate, "八", "8");strDate = StringUtil.replaceEx(strDate, "九", "9");return strDate;}/*** 传入秒数 返回 xx:xx:xx这种时间格式* @param second* @return*/public static String getTimeStr(long second) {String timsStr = "";String hourStr = String.valueOf(second / (60 * 60));long second1 = second % 3600;if (hourStr.length() == 1) {hourStr = "0" + hourStr;}String minite = String.valueOf(second1 / 60);if (minite.length() == 1) {minite = "0" + minite;}String second2 = String.valueOf(second1 % 60);if (second2.length() == 1) {second2 = "0" + second2;}timsStr = hourStr + ":" +minite + ":" + second2;return timsStr;}public static String getFormatTimeStr(String timeStr){String str = "";if(timeStr.length() != 0) {str = timeStr.replaceAll(":","'");}return str;}public static String getTotalSecond(String dateStr){String result = "";if(StringUtil.isNotEmpty(dateStr)&&dateStr.indexOf(":")>-1){String[] arr = dateStr.split(":");Long hour = Long.valueOf(arr[0])*60*60;Long min = Long.valueOf(arr[1])*60;Long second = Long.valueOf(arr[2]);result = String.valueOf(hour+min+second);}else{result = "0";}return result;}/*** 计算2个时间戳日期的天数差 date2 -date1* @param date1* @param date2* @return* @throws ParseException*/public static int getDaysDifference(Long date1, Long date2) throws ParseException{Date d1 = new Date(date1);Date d2 = new Date(date2);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");d1 = sdf.parse(sdf.format(d1));d2 = sdf.parse(sdf.format(d2));Calendar cal = Calendar.getInstance();cal.setTime(d1);Long time1 = cal.getTimeInMillis();cal.setTime(d2);Long time2 = cal.getTimeInMillis();long between_days=(time2-time1)/(1000*3600*24);return Integer.parseInt(String.valueOf(between_days));}public static void main(String []s){Date datemie = new Date();System.out.println(getDateTime(datemie));}/*** 得到一天的开始时间* @param date* @return*/public static Date getStartTimeOfDay(Date date){Calendar calendar = Calendar.getInstance();calendar.setTime(new Date());calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date start = calendar.getTime();return start;}/*** 得到一天的结束时间* @param date* @return*/public static Date getEndTimeOfDay(Date date){Calendar calendar = Calendar.getInstance();calendar.setTime(new Date());calendar.set(Calendar.HOUR_OF_DAY, 23);calendar.set(Calendar.MINUTE, 59);calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MILLISECOND, 999);Date end = calendar.getTime();return end;}/*** 判断当前时间距离第二天凌晨的秒数** @return 返回值单位为[s:秒]*/public static Long getSecondsNextEarlyMorning() {Calendar cal = Calendar.getInstance();cal.add(Calendar.DAY_OF_YEAR, 1);cal.set(Calendar.HOUR_OF_DAY, 0);cal.set(Calendar.SECOND, 0);cal.set(Calendar.MINUTE, 0);cal.set(Calendar.MILLISECOND, 0);return (cal.getTimeInMillis() - System.currentTimeMillis()) / 1000;}/*
得到一天的开始时间*/public  static Date getStartTime(Date date){Calendar calendar = Calendar.getInstance();calendar.setTime(new Date());calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);Date start = calendar.getTime();return date;}/*得到一天的结束时间*/public  static Date getEndTime(Date date){Calendar calendar = Calendar.getInstance();calendar.setTime(new Date());calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.add(Calendar.DAY_OF_MONTH, 1);calendar.add(Calendar.SECOND, -1);Date end = calendar.getTime();return end;}public static String getTimeStrByFormat(Long timestamp, String format) {if (StringUtil.isEmpty(format)) {format = Format_DateTime;}if (timestamp == null || timestamp.longValue() == 0) {timestamp = System.currentTimeMillis();}SimpleDateFormat sformat = new SimpleDateFormat(format);String timeText = sformat.format(timestamp);return timeText;}public static String getDateStrByNowByFormat(Date date,String format) {if (date == null) {return null;}if (StringUtils.isBlank(format)){format = Format_DateTime;}SimpleDateFormat sdf = new SimpleDateFormat(format);String result = sdf.format(date);return result;}public static String getDateStrByNowByFormat(Date date) {if (date == null) {return null;}SimpleDateFormat sdf = new SimpleDateFormat(Format_DateTime);String result = sdf.format(date);return result;}/*** 获取过去第几天的日期** @param past* @return*/public static String getPastDate(int past, Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);calendar.set(Calendar.DATE, calendar.get(Calendar.DATE) - past);Date day = calendar.getTime();SimpleDateFormat sdf = new SimpleDateFormat(Format_Date);String result = sdf.format(day);return result;}public static String getYmdStrByNow(Date date) {if (date == null) {return null;}SimpleDateFormat sdf = new SimpleDateFormat(Format_Date);String result = sdf.format(date);return result;}//获取某段时间内的所有日期public static List<String> findDates(String startDate, String endDate) {Date dStart = parse(startDate);Date dEnd = parse(endDate);Calendar cStart = Calendar.getInstance();cStart.setTime(dStart);List dateList = new ArrayList();startDate = getYmdStrByNow(dStart);dateList.add(startDate);while (dEnd.after(cStart.getTime())) {cStart.add(Calendar.DAY_OF_MONTH, 1);Date current = cStart.getTime();dateList.add(toString(current));}return dateList;}public static String getDateStrBynowFormat() {Date date = new Date();SimpleDateFormat sdf = new SimpleDateFormat(Format_DateTime1);String result = sdf.format(date);return result;}/*** 获取指定日期前一天日期*/public static String getBefore(Date date) {SimpleDateFormat sdf = new SimpleDateFormat(Format_Date);Calendar calendar = Calendar.getInstance();calendar.setTime(date);calendar.add(Calendar.DATE, -1);String before = sdf.format(calendar.getTime());return before;}}

第二类：

import org.springframework.util.Assert;
import org.springframework.util.StringUtils;import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.*;import static java.util.Calendar.DAY_OF_MONTH;public class TimeUtils {public static final String DEFAULT_YYYYMMDD_HHMMSS = "yyyy/MM/dd HH:mm:ss";public static final String DEFAULT_YYYYMMDD_HHMMSS_SSS = "yyyy/MM/dd HH:mm:ss.SSS";public static final String YYYYMMDD_HHMMSS = "yyyy-MM-dd HH:mm:ss";public static final String YYYYMMDD_HHMMSS_SSS = "yyyy-MM-dd HH:mm:ss.SSS";public static final String YYYYMMDD_HH = "yyyy-MM-dd HH";public static final String YYYYMMDD_HH1 = "yyyyMMddHH";public static final String YYYYMMDD = "yyyy-MM-dd";public static final String YYYYMMDD2 = "yyyy年MM月dd日";public static final String YYYYMMDD3 = "yyyy/MM/dd";public static final String YYYYMMDD4 = "yyyy/MM";public static final String YYYYMMDD5 = "yyyyMMdd";public static final String YYYYMMDD_HHMMSS2 = "yyyyMMddHHmmss";public static final String YYYYMMDD_HHMMSS_SSS2 = "yyyyMMddHHmmssSSS";public static final String YYYYMMDD_HHMMSS3 = "yyyy年MM月dd日HH时mm分ss秒";public static final String YYYYMMDD_HHMMSS_SSS3 = "yyyy年MM月dd日HH时mm分ss秒SSS毫秒";public static final String DAY = "day";public static final String HOUR = "hour";public static final String MINUTE = "minute";public static final String SECOND = "second";public static final String MILLIS = "millis";/*** 新浪微博格式的处理器*/private static final SimpleDateFormat sinaSDF = new SimpleDateFormat("EEE MMM d HH:mm:ss Z yyyy", Locale.US);public static final String[] WEEK_DAYS = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};public static String[] DEFAULT_PATTERNS = {DEFAULT_YYYYMMDD_HHMMSS,DEFAULT_YYYYMMDD_HHMMSS_SSS,YYYYMMDD_HHMMSS_SSS,YYYYMMDD_HHMMSS_SSS2,YYYYMMDD_HHMMSS_SSS3,YYYYMMDD_HHMMSS,YYYYMMDD_HHMMSS2,YYYYMMDD_HHMMSS3,YYYYMMDD3,YYYYMMDD,YYYYMMDD_HH1,YYYYMMDD_HH,YYYYMMDD2,YYYYMMDD4,YYYYMMDD5};public static String[] TIME_PATTERNS = {DEFAULT_YYYYMMDD_HHMMSS,DEFAULT_YYYYMMDD_HHMMSS_SSS,YYYYMMDD_HHMMSS_SSS,YYYYMMDD_HHMMSS_SSS2,YYYYMMDD_HHMMSS_SSS3,YYYYMMDD_HHMMSS,YYYYMMDD_HHMMSS2,YYYYMMDD_HHMMSS3,YYYYMMDD_HH1,YYYYMMDD_HH};public static String[] DATE_PATTERNS = {YYYYMMDD3,YYYYMMDD,YYYYMMDD2,YYYYMMDD4,YYYYMMDD5};/*** 判断传入的字符串是否属于新浪微博格式（Sun Nov 14 12:19:13 +0800 2021）<BR>** @param inputStr 输入的字符串* @return <ul>* <li>true - 属于</li>* <li>false - 不属于</li>* </ul>*/public static boolean isSinaTime(String inputStr) {if (StringUtils.isEmpty(inputStr)) {return false;}sinaSDF.setLenient(false);//设置解析日期格式是否严格解析日期ParsePosition pos = new ParsePosition(0);sinaSDF.parse(inputStr, pos);if (pos.getIndex() == inputStr.length()) {return true;}return false;}/*** 判断传入的字符串是是否属于时间<BR>** @param inputStr 输入的字符串* @return <ul>* <li>true - 属于时间</li>* <li>false - 不属于时间</li>* </ul>*/public static boolean isTimeString(String inputStr) {if (StringUtils.isEmpty(inputStr)) {return false;}SimpleDateFormat df = new SimpleDateFormat();final String[] localDateFormats = TIME_PATTERNS;for (String pattern : localDateFormats) {df.applyPattern(pattern);//设置解析日期格式是否严格解析日期df.setLenient(false);ParsePosition pos = new ParsePosition(0);df.parse(inputStr, pos);if (pos.getIndex() == inputStr.length()) {return true;}}return false;}/*** 判断传入的字符串是是否属于日期<BR>** @param inputStr 输入的字符串* @return <ul>* <li>true - 属于日期</li>* <li>false - 不属于日期</li>* </ul>*/public static boolean isDateString(String inputStr) {if (StringUtils.isEmpty(inputStr)) {return false;}if (!isTimeString(inputStr)) {SimpleDateFormat df = new SimpleDateFormat();final String[] localDateFormats = DATE_PATTERNS;for (String pattern : localDateFormats) {df.applyPattern(pattern);//设置解析日期格式是否严格解析日期df.setLenient(false);ParsePosition pos = new ParsePosition(0);df.parse(inputStr, pos);if (pos.getIndex() == inputStr.length()) {return true;}}}return false;}/*** 将字符串日期转成另外一种格式的字符串日期** @param inputDate 输入时间* @return*/public static String stringToString(String inputDate) {return dateToString(stringToDate(inputDate), DEFAULT_YYYYMMDD_HHMMSS);}/*** 将字符串日期转成另外一种格式的字符串日期** @param inputDate   输入时间* @param outputRegex 返回的时间格式* @return*/public static String stringToString(String inputDate, String outputRegex) {return dateToString(stringToDate(inputDate), outputRegex);}/*** 将字符串日期转成另外一种格式的字符串日期** @param inputRegex  输入时间格式* @param inputDate   输入时间* @param outputRegex 返回的时间格式* @return*/public static String stringToString(String inputRegex, String inputDate, String outputRegex) {return dateToString(stringToDate(inputDate, inputRegex), outputRegex);}/*** 将输入的时间转成Date类型** @param inputDate 待转换时间* @return*/public static Date stringToDate(String inputDate) {return stringToDate(inputDate, null);}/*** 将字符串转成日期对象** @param dateString* @param dateFormat* @return*/public static Date stringToDate(String dateString, String dateFormat) {if (StringUtils.isEmpty(dateString)) {return null;}return parseDate(dateString, dateFormat);}/*** 将日期转为String对象** @param date* @return*/public static String dateToString(Date date) {return dateToString(date, DEFAULT_YYYYMMDD_HHMMSS);}/*** 将日期转为String对象** @param date      时间* @param timeRegex* @return*/public static String dateToString(Date date, String timeRegex) {Assert.isTrue(date != null, "传入的时间不能为空！");timeRegex = StringUtils.isEmpty(timeRegex) ? DEFAULT_YYYYMMDD_HHMMSS : timeRegex;return new SimpleDateFormat(timeRegex).format(date);}/*** 将日期转为String对象** @param dateLong 时间* @param* @return*/public static String longToString(long dateLong) {return longToString(dateLong, null);}public static String longToString(long dateLong, String dateFormat) {return dateToString(new Date(dateLong), dateFormat);}/*** 得到当天的日期** @return 返回当天的日期*/public static String getCurrentDate() {return getCurrentDate(null);}/*** 得到当天的日期** @return 返回当天的日期*/public static String getCurrentDate(String dateFormat) {return dateToString(new Date(), dateFormat);}/*** 获取当前日期几天前的日期** @param day 之前（负数）或之后（正数）的天数* @return*/public static String dateBefOrAft(int day) {return dateBefOrAft(day, DEFAULT_YYYYMMDD_HHMMSS);}/*** 获取当前日期几天前的日期** @param day 之前（负数）或之后（正数）的天数* @return*/public static String dateBefOrAft(int day, String returnRegex) {return dateBefOrAft(getCurrentDate(returnRegex), day, returnRegex);}/*** 获取几天前的日期** @param day 之前（负数）或之后（正数）的天数* @return*/public static String dateBefOrAft(String date, int day, String returnRegex) {return dateBefOrAft(date, day, null, returnRegex);}/*** 获取几天前的日期** @param day 之前（负数）或之后（正数）的天数* @return*/public static String dateBefOrAft(String date, int day, String timeRegex, String returnRegex) {returnRegex = StringUtils.isEmpty(returnRegex) ? timeRegex : returnRegex;return dateBefOrAft(stringToDate(date, timeRegex), day, returnRegex);}/*** 获取某日期的几天前的日期** @param date 日期* @param day  之前（负数）或之后（正数）的天数* @return*/public static String dateBefOrAft(Date date, int day) {return dateBefOrAft(date, day, DEFAULT_YYYYMMDD_HHMMSS);}/*** 获取某日期的几天前的日期** @param date 日期* @param day  之前（负数）或之后（正数）的天数* @return*/public static String dateBefOrAft(Date date, int day, String returnRegex) {return dateToString(befOrAft(date, day, DAY_OF_MONTH), returnRegex);}/*** 获取时间前/后几小时的时间** @param hour 时间* @param hour 之前（负数）或之后（正数）的小时数* @return*/public static String hourDefOrAft(int hour) {return hourDefOrAft(hour, DEFAULT_YYYYMMDD_HHMMSS);}/*** 获取时间前/后几小时的时间** @param hour 之前（负数）或之后（正数）的小时数* @return*/public static String hourDefOrAft(int hour, String timeRegex) {return hourDefOrAft(new Date(), hour, timeRegex);}/*** 获取时间前/后几小时的时间** @param date      时间* @param hour      之前（负数）或之后（正数）的小时数* @param timeRegex* @return*/public static String hourDefOrAft(String date, int hour, String timeRegex) {return hourDefOrAft(date, hour, null, timeRegex);}/*** 获取时间前/后几小时的时间** @param date      时间* @param hour      之前（负数）或之后（正数）的小时数* @param timeRegex* @return*/public static String hourDefOrAft(String date, int hour, String timeRegex, String returnRegex) {timeRegex = StringUtils.isEmpty(timeRegex) ? returnRegex : timeRegex;return hourDefOrAft(stringToDate(date, timeRegex), hour, returnRegex);}/*** 获取时间前/后几小时的时间** @param date      时间* @param hour      之前（负数）或之后（正数）的小时数* @param timeRegex* @return*/public static String hourDefOrAft(Date date, int hour, String timeRegex) {return dateToString(befOrAft(date, hour, Calendar.HOUR_OF_DAY), timeRegex);}/*** 获取时间前/后几天的日期** @param num 如果要获得前几天日期，该参数为负数；如果要获得后几天日期，该参数为正数* @return*/public static Date befOrAft(Date specifiedDate, int num, final int field) {Calendar cal = Calendar.getInstance();cal.setTime(specifiedDate);cal.add(field, num);return cal.getTime();}/*** 获取两个日期之间相隔的天数** @param startDate* @return*/public static int getNumDay(String startDate, String endDate) {return getNumDay(stringToDate(startDate), stringToDate(endDate));}/*** 获取两个日期之间相隔的天数** @param startDate* @return*/public static int getNumDay(Date startDate, Date endDate) {return (int) getNumTime(startDate, endDate, DAY);}/*** 获取两个日期之间相隔的小时数** @param startDate* @return*/public static int getNumHour(String startDate, String endDate) {return getNumHour(stringToDate(startDate), stringToDate(endDate));}/*** 获取两个日期之间相隔的小时数** @param startDate* @return*/public static int getNumHour(Date startDate, Date endDate) {return (int) (getNumTime(startDate, endDate, HOUR));}/*** 获取两个时间之间相隔的分钟数** @param startDate 开始时间* @param endDate   结束时间* @return*/public static int getNumMinutes(String startDate, String endDate) {return getNumMinutes(stringToDate(startDate), stringToDate(endDate));}/*** 获取两个时间之间相隔的分钟数** @param startDate 开始时间* @param endDate   结束时间* @return*/public static int getNumMinutes(Date startDate, Date endDate) {return (int) (getNumTime(startDate, endDate, MINUTE));}/*** 获取两个时间之间相隔的秒数** @param startDate 开始时间* @param endDate   结束时间* @return*/public static long getNumSec(String startDate, String endDate) {return getNumSec(stringToDate(startDate), stringToDate(endDate));}/*** 获取两个时间之间相隔的秒数** @param startDate 开始时间* @param endDate   结束时间* @return*/public static long getNumSec(Date startDate, Date endDate) {return getNumTime(startDate, endDate, MINUTE);}/*** 获取两个时间之间相隔的毫秒数** @param endDate* @param startDate* @return*/public static Long getNumMs(String startDate, String endDate) {return getNumMs(stringToDate(startDate), stringToDate(endDate));}/*** 获取两个时间之间相隔的毫秒数** @param endDate* @param startDate* @return*/public static Long getNumMs(Date startDate, Date endDate) {return getNumTime(startDate, endDate, MILLIS);}private static long getNumTime(Date startDate, Date endDate, String type) {endDate = endDate == null ? new Date() : endDate;startDate = startDate == null ? new Date() : startDate;//一天的毫秒数long nd = 1000 * 24 * 60 * 60;//一小时的毫秒数long nh = 1000 * 60 * 60;//一分钟的毫秒数long nm = 1000 * 60;//一秒钟的毫秒数long ns = 1000;long num = 0L;long diff = endDate.getTime() - startDate.getTime();switch (type) {case DAY:num = diff / nd;break;case HOUR:num = diff % nd / nh;break;case MINUTE:num = diff % nd % nh / nm;break;case SECOND:num = diff % nd % nh % nm / ns;break;case MILLIS:num = diff;break;default:break;}return num;}/*** 判断某一时间是否在一个区间内** @param timeArea 时间区间,如[10:00,20:00]* @param curTime  需要判断的时间 如15:00* @return boolean*/public static boolean insideTimeRange(String timeArea, String curTime) {return insideTimeRange(timeArea, curTime, DEFAULT_YYYYMMDD_HHMMSS);}/*** 判断某一时间是否在一个区间内** @param timeArea 时间区间,如[10:00,20:00]* @param curTime  需要判断的时间 如15:00* @return boolean*/public static boolean insideTimeRange(String timeArea, String curTime, String timeRegex) {return insideTimeRange(timeArea, curTime, timeRegex, ",");}/*** 判断某一时间是否在一个区间内** @param timeArea 时间区间,如[10:00,20:00]* @param curTime  需要判断的时间 如10:00* @return boolean*/public static boolean insideTimeRange(String timeArea, String curTime, String timeRegex, String split) {//1.检查传来的时间是否符合规则Assert.isTrue(timeArea != null && timeArea.contains(split), "可用时间段格式不符合");Assert.isTrue(curTime != null, "当前时间格式不符合");String[] times = timeArea.split(",");SimpleDateFormat sdf = new SimpleDateFormat(timeRegex);try {//2.获取起始时间、截止时间long now = sdf.parse(curTime).getTime();long start = sdf.parse(times[0]).getTime();long end = sdf.parse(times[1]).getTime();if (now >= start && now <= end) {return true;} else {return false;}} catch (ParseException e) {throw new IllegalArgumentException("判断时间段报错:" + timeArea + e);}}/*** 判断时间大小** @param maxDate* @param minDate* @return*/public static boolean isMaxDate(String maxDate, String minDate) {return isMaxDate(stringToDate(maxDate), stringToDate(minDate));}/*** 判断时间大小** @param maxDate* @param minDate* @return*/public static boolean isMaxDate(Date maxDate, Date minDate) {if (maxDate.before(minDate)) {return false;}return true;}/*** 获取两个日期之间的所有日期** @param startTime* @param endTime* @return* @throws ParseException*/public static List<String> getDateList(String startTime, String endTime) {return getDateList(startTime, endTime, YYYYMMDD3);}public static List<String> getDateList(String startTime, String endTime, String returnFormat) {return getDateList(startTime, endTime, returnFormat, true);}/*** 获取两个日期之间的所有日期** @param startTime    开始时间* @param endTime      结束时间* @param allowOverNow 是否允许超过当前时间* @return List*/public static List<String> getDateList(String startTime, String endTime, String returnFormat, boolean allowOverNow) {return getDateList(startTime, endTime, null, returnFormat, allowOverNow, true);}/*** 获取两个日期之间的所有日期** @param startTime     开始时间* @param endTime       结束时间* @param allowOverNow  是否允许超过当前时间* @param containEndDay 是否允许包含结束时间* @return List*/public static List<String> getDateList(String startTime, String endTime, String dateFormat, String returnFormat, boolean allowOverNow, final boolean containEndDay) {if (StringUtils.isEmpty(startTime) || (StringUtils.isEmpty(endTime))) {return null;}Date startDate = stringToDate(startTime, dateFormat);Date endDate = stringToDate(endTime, dateFormat);//不允许结束时间超过当前时间if (!allowOverNow && endDate.getTime() > System.currentTimeMillis()) {endDate = new Date();}return findTimePeriod(startDate, endDate, DAY_OF_MONTH, returnFormat, containEndDay);}/*** 获取传入时间到当前时间之间的月份** @param beginDay 开始时间* @return 返回时间段的日期格式为yyyy/MM* @throws Exception*/public static List<String> findMonths(String beginDay) {return findMonths(beginDay, getCurrentDate(YYYYMMDD4));}/*** 获取传入时间到当前时间之间的月份** @param beginDay 开始时间* @return 返回时间段的日期格式为yyyy/MM* @throws Exception*/public static List<String> findMonths(String beginDay, String endDay) {return findMonths(beginDay, endDay, YYYYMMDD4, true);}/*** 获取传入时间到当前时间之间的月份** @param beginDay    开始时间* @param returnRegex 返回日期格式 形如yyyy/MM* @param desc        是否倒序排序* @return 返回时间段的日期格式为yyyy/MM/dd* @throws Exception*/public static List<String> findMonths(String beginDay, String endDay, String returnRegex, final boolean desc) {return findMonths(beginDay, endDay, returnRegex, desc, true);}/*** 获取传入时间到当前时间之间的月份** @param beginDay      开始时间* @param endDay        结束时间* @param returnRegex   返回日期格式 形如yyyy/MM* @param desc          是否倒序排序* @param containEndDay 是否允许包含结束时间* @return 返回时间段的日期格式为yyyy/MM/dd*/public static List<String> findMonths(String beginDay, String endDay, String returnRegex, final boolean desc, final boolean containEndDay) {return findMonths(beginDay, endDay, null, returnRegex, desc, containEndDay);}/*** 获取传入时间到当前时间之间的月份** @param beginDay      开始时间* @param endDay        结束时间* @param timeRegex     输入时间的格式* @param returnFormat  返回日期格式 形如yyyy/MM* @param desc          是否倒序排序* @param containEndDay 是否允许包含结束时间* @return 返回时间段的日期格式为yyyy/MM/dd*/public static List<String> findMonths(String beginDay, String endDay, String timeRegex, String returnFormat, final boolean desc, final boolean containEndDay) {//定义开始日期Date startDay = stringToDate(beginDay, timeRegex);//定义结束日期Date now = stringToDate(endDay, timeRegex);List<String> months = findTimePeriod(startDay, now, Calendar.MONTH, returnFormat, containEndDay);//时间排序sortTime(months, desc);return months;}/*** 获取一个时间段内的月份、日期、年份、分钟等** @param startDay* @param endDay* @param field     分段标志：月份、天、年* @param timeRegex* @return*/public static List<String> findTimePeriod(Date startDay, Date endDay, int field, String timeRegex, final boolean containEndDay) {List<String> dateList = new ArrayList<>();SimpleDateFormat dateFormat = new SimpleDateFormat(timeRegex);//定义日期实例Calendar dd = Calendar.getInstance();//设置日期起始时间dd.setTime(startDay);//判断是否需要包含结束日期if (containEndDay) {endDay = befOrAft(endDay, 1, DAY_OF_MONTH);}//判断是否到结束日期while (dd.getTime().before(endDay)) {dateList.add(dateFormat.format(dd.getTime()));//日期结果dd.add(field, 1);//进行当前日期月份加1}return dateList;}/*** 获取开始时间到今天的时间区间，分割成20个区间** @param beginDay 开始时间* @return*/public static List<String> findDatesRange(String beginDay) {return findDatesRange(beginDay, getCurrentDate());}/*** 获取开始时间和结束时间之间的时间区间，分割成20个区间** @param beginDay 开始时间* @param endDay   开始时间* @return*/public static List<String> findDatesRange(String beginDay, String endDay) {return findDatesRange(beginDay, endDay, YYYYMMDD3);}/*** 获取开始时间和结束时间之间的时间区间，分割成20个区间** @param beginDay     开始时间* @param endDay       结束时间* @param returnFormat 返回时间段的日期格式。 默认yyyy/MM/dd* @return*/public static List<String> findDatesRange(String beginDay, String endDay, String returnFormat) {return findDatesRange(beginDay, endDay, "->", returnFormat);}/*** 获取开始时间和结束时间之间的时间区间，分割成20个区间** @param beginDay     开始时间* @param endDay       结束时间* @param range        区间数* @param returnFormat 返回时间段的日期格式。 默认yyyy/MM/dd* @return List*/public static List<String> findDatesRange(String beginDay, String endDay, int range, String returnFormat) {return findDatesRange(beginDay, endDay, "->", range, returnFormat);}/*** 获取n个开始时间和结束时间之间的时间区间，默认分割成15个区间** @param beginDay     开始时间* @param endDay       开始时间* @param symbol       符号* @param returnFormat 返回时间段的日期格式。 默认yyyy/MM/dd* @return* @throws Exception*/public static List<String> findDatesRange(String beginDay, String endDay, String symbol, String returnFormat) {return findDatesRange(stringToDate(beginDay), stringToDate(endDay), symbol, returnFormat);}/*** 获取开始时间和结束时间之间的时间区间，分割成20个区间** @param beginDay     开始时间* @param endDay       结束时间* @param range        区间数* @param returnFormat 返回时间段的日期格式。 默认yyyy/MM/dd* @return List*/public static List<String> findDatesRange(String beginDay, String endDay, String symbol, int range, String returnFormat) {return findDatesRange(stringToDate(beginDay), stringToDate(endDay), symbol, range, returnFormat);}/*** 获取开始时间和结束时间之间的时间区间，分割成20个区间** @param beginDate    开始时间* @param endDate      结束时间* @param symbol       符号* @param returnFormat 返回时间段的日期格式。 默认yyyy/MM/dd* @return List*/public static List<String> findDatesRange(Date beginDate, Date endDate, String symbol, String returnFormat) {return findDatesRange(beginDate, endDate, symbol, 15, returnFormat);}/*** 获取n个开始时间和结束时间之间的时间区间，默认分割成15个区间** @param beginDate    开始时间* @param endDate      结束时间* @param symbol       连接符号* @param range        区间数* @param returnFormat 返回时间段的日期格式。 默认yyyy/MM/dd* @return List*/public static List<String> findDatesRange(Date beginDate, Date endDate, String symbol, int range, String returnFormat) {Assert.isTrue(range != 0, "findDatesRange执行失败,传入的时间区间不能等于0!");Assert.isTrue(beginDate != null && endDate != null, "findDatesRange执行失败,传入的开始时间或结束时间不能为空!");Assert.isTrue(beginDate.before(endDate), "findDatesRange执行失败,开始时间不能大于结束时间!");int defferentDays = getNumDay(beginDate, endDate);int count = 0;int intervalTime = defferentDays / range;int lastIntervalTime = defferentDays % range; //最后一个时间区间,List<String> result = new ArrayList<>();SimpleDateFormat sdf = returnFormat != null ? new SimpleDateFormat(returnFormat) : new SimpleDateFormat(YYYYMMDD3);Calendar cal = Calendar.getInstance();// 使用给定的 Date 设置此 Calendar 的时间cal.setTime(beginDate);String rangeStartTime = dateToString(beginDate, returnFormat);while (true) {//当if (intervalTime == 0) {result.add(rangeStartTime + symbol + sdf.format(endDate));break;}// 根据日历的规则，为给定的日历字段添加或减去指定的时间量cal.add(Calendar.DAY_OF_MONTH, count == range - 1 && lastIntervalTime != 0 ? lastIntervalTime + intervalTime : intervalTime - 1);// 测试此日期是否在指定日期之后if (endDate.after(cal.getTime()) || endDate.equals(cal.getTime())) {result.add(rangeStartTime + symbol + sdf.format(cal.getTime()));//当前结束时间的后一天为下个区间的开始时间rangeStartTime = dateBefOrAft(cal.getTime(), 1, returnFormat);cal.add(Calendar.DAY_OF_MONTH, 1);count++;} else {break;}}return result;}/*** 判断今天星期数** @return*/public static String getWeekOfDate() {return getWeekOfDate(new Date());}/*** 判断星期数** @param time* @return*/public static String getWeekOfDate(String time) {return getWeekOfDate(stringToDate(time));}/*** 判断星期数** @param date 时间* @return*/public static String getWeekOfDate(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);int w = cal.get(Calendar.DAY_OF_WEEK) - 1;if (w < 0) {w = 0;}return WEEK_DAYS[w];}/*** 获取本月的周末** @return*/public static List<String> getCurMonthWeekdays() {return getCurMonthWeekdays(YYYYMMDD3);}/*** 获取本月的周末** @return*/public static List<String> getCurMonthWeekdays(String timeRegex) {Calendar cal = Calendar.getInstance();return getWeekdays(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH) + 1, timeRegex);}/*** 获取某年某月的周末** @param time* @return*/public static List<String> getWeekdays(String time) {return getWeekdays(time, YYYYMMDD3);}public static List<String> getWeekdays(String time, String timeRegex) {Calendar cal = Calendar.getInstance();cal.setTime(stringToDate(time));return getWeekdays(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY) + 1, timeRegex);}/*** 获取某年某月的周末** @param year* @param month* @return*/public static List<String> getWeekdays(int year, int month) {return getWeekdays(year, month, YYYYMMDD3);}/*** 获取某年某月的周末** @param year* @param month* @return*/public static List<String> getWeekdays(int year, int month, String timeRegex) {SimpleDateFormat sdf = new SimpleDateFormat(timeRegex);List<String> weekDayList = new ArrayList<>();// 1.获得当前日期对象Calendar cal = Calendar.getInstance();// 2.清除信息cal.clear();//3.设置年、月cal.set(Calendar.YEAR, year);// 3.1 1月从0开始cal.set(Calendar.MONTH, month - 1);// 3.2 当月1号cal.set(DAY_OF_MONTH, 1);int count = cal.getActualMaximum(DAY_OF_MONTH);for (int j = 1; j <= count; j++) {//4. 判断是否是周末if (cal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY || cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {weekDayList.add(sdf.format(cal.getTime()));}//5.增加一天cal.add(DAY_OF_MONTH, 1);}return weekDayList;}/*** 获取上个月的开始日期和结束日期时间戳* @param index 0为开始时间 其他为结束时间* @return*/public static Long getDayOfLastMonth(int index) {Calendar calendar = Calendar.getInstance();int month = calendar.get(Calendar.MONTH);if (index == 0) {//将小时至0calendar.set(Calendar.HOUR_OF_DAY, 0);//将分钟至0calendar.set(Calendar.MINUTE, 0);//将秒至0calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MONTH, month-1);calendar.set(Calendar.DAY_OF_MONTH, 1);} else {//将小时至23calendar.set(Calendar.HOUR_OF_DAY, 23);//将分钟至59calendar.set(Calendar.MINUTE, 59);//将秒至59calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MONTH, month-1);calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));}return calendar.getTime().getTime();}/*** 获取本月开始时间和结束时间时间戳* @param index 0为开始时间 其他为结束时间* @return*/public static Long getDayOfMonth(int index) {Calendar calendar = Calendar.getInstance();int month = calendar.get(Calendar.MONTH);if (index == 0) {//将小时至0calendar.set(Calendar.HOUR_OF_DAY, 0);//将分钟至0calendar.set(Calendar.MINUTE, 0);//将秒至0calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MONTH, month);calendar.set(Calendar.DAY_OF_MONTH, 1);} else {//将小时至23calendar.set(Calendar.HOUR_OF_DAY, 23);//将分钟至59calendar.set(Calendar.MINUTE, 59);//将秒至59calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MONTH, month);calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));}return calendar.getTimeInMillis();}/*** 将输入的时间转成Date类型** @param inputDate 待转换时间* @param patterns  带转换时间的可能格式 空则在默认格式中找* @return 时间*/private static Date parseDate(String inputDate, String patterns) {SimpleDateFormat df = new SimpleDateFormat();final String[] localDateFormats = patterns != null ? new String[]{patterns} : DEFAULT_PATTERNS;for (String pattern : localDateFormats) {df.applyPattern(pattern);//设置解析日期格式是否严格解析日期df.setLenient(false);ParsePosition pos = new ParsePosition(0);Date date = df.parse(inputDate, pos);if (pos.getIndex() == inputDate.length()) {return date;}}// 看看是否是微博的格式进行相关处理//设置解析日期格式是否严格解析日期sinaSDF.setLenient(false);ParsePosition pos = new ParsePosition(0);Date date = sinaSDF.parse(inputDate, pos);if (pos.getIndex() == inputDate.length()) {return date;}// 对于传入的时间戳进行兼容if (StringUtils.isEmpty(patterns)) {try {return new Date(Long.valueOf(inputDate));} catch (NumberFormatException e) {}}String msg;if (!StringUtils.isEmpty(patterns)) {msg = String.format("%s的时间格式与传入的%s格式不匹配", inputDate, patterns);} else {msg = String.format("%s的时间格式与内置格式不匹配", inputDate);}throw new IllegalArgumentException(msg);}/*** 对时间进行排序** @param timeList 时间列表* @param desc     ture 倒序排列*/private static void sortTime(List<String> timeList, final boolean desc) {Collections.sort(timeList, new Comparator<Object>() {@Overridepublic int compare(Object o1, Object o2) {return desc ? String.valueOf(o2).compareTo(String.valueOf(o1)) : -String.valueOf(o2).compareTo(String.valueOf(o1));}});}
}

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