JAVA 日期处理工具类 DateUtils
package com.genlot.common.utils;
import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import org.apache.log4j.Logger;
import com.genlot.common.utils.validate.ValidateUtils;
/**
* 日期工具类
* @date 2017-3-3 14:48:20
*/
public class DateUtils extends org.apache.commons.lang.time.DateUtils {
public static final String TIME_WITH_MINUTE_PATTERN = "HH:mm";
public static final long DAY_MILLI = 24 * 60 * 60 * 1000; // 一天的MilliSecond
// 取值范围：就是临界点包不包含等于
public final static int LEFT_OPEN_RIGHT_OPEN = 1;
public final static int LEFT_CLOSE_RIGHT_OPEN = 2;
public final static int LEFT_OPEN_RIGHT_CLOSE = 3;
public final static int LEFT_CLOSE_RIGHT_CLOSE = 4;
/**
* 比较日期的模式 --只比较日期，不比较时间
*/
public final static int COMP_MODEL_DATE = 1;
/**
* 比较日期的模式 --只比较时间，不比较日期
*/
public final static int COMP_MODEL_TIME = 2;
/**
* 比较日期的模式 --比较日期，也比较时间
*/
public final static int COMP_MODEL_DATETIME = 3;
private static Logger logger = Logger.getLogger(DateUtils.class);
/**
* 要用到的DATE Format的定义
*/
public static String DATE_FORMAT_DATEONLY = "yyyy-MM-dd"; // 年/月/日
public static String DATE_FORMAT_DATETIME = "yyyy-MM-dd HH:mm:ss"; // 年/月/日
public static SimpleDateFormat sdfDateTime = new SimpleDateFormat(DateUtils.DATE_FORMAT_DATETIME);
public static SimpleDateFormat sdfDateOnly = new SimpleDateFormat(DateUtils.DATE_FORMAT_DATEONLY);
public static final SimpleDateFormat formatTimestamp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public static final SimpleDateFormat SHORTDATEFORMAT = new SimpleDateFormat("yyyyMMdd");
public static final SimpleDateFormat SHORT_DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");
public static final SimpleDateFormat LONG_DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public static final SimpleDateFormat LONG_DATE_FORMAT_SSS = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
public static final SimpleDateFormat HMS_FORMAT = new SimpleDateFormat("HH:mm:ss");
/**
* 根据日期格式字符串解析日期字符串
*
* @param str
* 日期字符串
* @param parsePatterns
* 日期格式字符串
* @return 解析后日期
* @throws ParseException
*/
public static Date parseDate(String str, String parsePatterns) throws ParseException {
return parseDate(str, new String[] { parsePatterns });
}
/**
* 根据单位字段比较两个日期
*
* @param date
* 日期1
* @param otherDate
* 日期2
* @param withUnit
* 单位字段，从Calendar field取值
* @return 等于返回0值, 大于返回大于0的值 小于返回小于0的值
*/
public static int compareDate(Date date, Date otherDate, int withUnit) {
Calendar dateCal = Calendar.getInstance();
dateCal.setTime(date);
Calendar otherDateCal = Calendar.getInstance();
otherDateCal.setTime(otherDate);
switch (withUnit) {
case Calendar.YEAR:
dateCal.clear(Calendar.MONTH);
otherDateCal.clear(Calendar.MONTH);
case Calendar.MONTH:
dateCal.set(Calendar.DATE, 1);
otherDateCal.set(Calendar.DATE, 1);
case Calendar.DATE:
dateCal.set(Calendar.HOUR_OF_DAY, 0);
otherDateCal.set(Calendar.HOUR_OF_DAY, 0);
case Calendar.HOUR:
dateCal.clear(Calendar.MINUTE);
otherDateCal.clear(Calendar.MINUTE);
case Calendar.MINUTE:
dateCal.clear(Calendar.SECOND);
otherDateCal.clear(Calendar.SECOND);
case Calendar.SECOND:
dateCal.clear(Calendar.MILLISECOND);
otherDateCal.clear(Calendar.MILLISECOND);
case Calendar.MILLISECOND:
break;
default:
throw new IllegalArgumentException("withUnit 单位字段 " + withUnit + " 不合法！！");
}
return dateCal.compareTo(otherDateCal);
}
/**
* 根据单位字段比较两个时间
*
* @param date
* 时间1
* @param otherDate
* 时间2
* @param withUnit
* 单位字段，从Calendar field取值
* @return 等于返回0值, 大于返回大于0的值 小于返回小于0的值
*/
public static int compareTime(Date date, Date otherDate, int withUnit) {
Calendar dateCal = Calendar.getInstance();
dateCal.setTime(date);
Calendar otherDateCal = Calendar.getInstance();
otherDateCal.setTime(otherDate);
dateCal.clear(Calendar.YEAR);
dateCal.clear(Calendar.MONTH);
dateCal.set(Calendar.DATE, 1);
otherDateCal.clear(Calendar.YEAR);
otherDateCal.clear(Calendar.MONTH);
otherDateCal.set(Calendar.DATE, 1);
switch (withUnit) {
case Calendar.HOUR:
dateCal.clear(Calendar.MINUTE);
otherDateCal.clear(Calendar.MINUTE);
case Calendar.MINUTE:
dateCal.clear(Calendar.SECOND);
otherDateCal.clear(Calendar.SECOND);
case Calendar.SECOND:
dateCal.clear(Calendar.MILLISECOND);
otherDateCal.clear(Calendar.MILLISECOND);
case Calendar.MILLISECOND:
break;
default:
throw new IllegalArgumentException("withUnit 单位字段 " + withUnit + " 不合法！！");
}
return dateCal.compareTo(otherDateCal);
}
/**
* 获得当前的日期毫秒
*
* @return
*/
public static long nowTimeMillis() {
return System.currentTimeMillis();
}
/**
* 获得当前的时间戳
*
* @return
*/
public static Timestamp nowTimeStamp() {
return new Timestamp(nowTimeMillis());
}
/**
* yyyy-MM-dd 当前日期
*
*/
public static String getReqDate() {
return SHORTDATEFORMAT.format(new Date());
}
/**
* yyyy-MM-dd 传入日期
*
* @param date
* @return
*/
public static String getReqDate(Date date) {
return SHORT_DATE_FORMAT.format(date);
}
/**
* yyyyMMdd 传入日期
*
* @param date
* @return
*/
public static String getReqDateyyyyMMdd(Date date) {
return SHORTDATEFORMAT.format(date);
}
/**
* yyyy-MM-dd 传入的时间戳
*
* @param date
* @return
*/
public static String TimestampToDateStr(Timestamp tmp) {
return SHORT_DATE_FORMAT.format(tmp);
}
/**
* HH:mm:ss 当前时间
*
* @return
*/
public static String getReqTime() {
return HMS_FORMAT.format(new Date());
}
/**
* 得到时间戳格式字串
*
* @param date
* @return
*/
public static String getTimeStampStr(Date date) {
return LONG_DATE_FORMAT.format(date);
}
/**
* 得到长日期格式字串
*
* @return
*/
public static String getLongDateStr() {
return LONG_DATE_FORMAT.format(new Date());
}
public static String getLongDateStr(Timestamp time) {
return LONG_DATE_FORMAT.format(time);
}
/**
* 得到短日期格式字串
*
* @param date
* @return
*/
public static String getShortDateStr(Date date) {
return SHORT_DATE_FORMAT.format(date);
}
public static String getShortDateStr() {
return SHORT_DATE_FORMAT.format(new Date());
}
/**
* 计算 second 秒后的时间
*
* @param date
* @param second
* @return
*/
public static Date addSecond(Date date, int second) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
;
calendar.add(Calendar.SECOND, second);
return calendar.getTime();
}
/**
* 计算 minute 分钟后的时间
*
* @param date
* @param minute
* @return
*/
public static Date addMinute(Date date, int minute) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.MINUTE, minute);
return calendar.getTime();
}
/**
* 计算 hour 小时后的时间
*
* @param date
* @param minute
* @return
*/
public static Date addHour(Date date, int hour) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.HOUR, hour);
return calendar.getTime();
}
/**
* 得到day的起始时间点。
*
* @param date
* @return
*/
public static Date getDayStart(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 得到day的终止时间点.
*
* @param date
* @return
*/
public static Date getDayEnd(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
calendar.add(Calendar.DAY_OF_MONTH, 1);
calendar.add(Calendar.MILLISECOND, -1);
return calendar.getTime();
}
/**
* 计算 day 天后的时间
*
* @param date
* @param day
* @return
*/
public static Date addDay(Date date, int day) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DAY_OF_MONTH, day);
return calendar.getTime();
}
/**
* 得到month的终止时间点.
*
* @param date
* @return
*/
public static Date getMonthEnd(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DAY_OF_MONTH, 1);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
calendar.add(Calendar.MONTH, 1);
calendar.add(Calendar.MILLISECOND, -1);
return calendar.getTime();
}
public static Date addYear(Date date, int year) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DAY_OF_YEAR, 365 * year);
return calendar.getTime();
}
public static Timestamp strToTimestamp(String dateStr) {
return Timestamp.valueOf(dateStr);
}
public static Timestamp strToTimestamp(Date date) {
return Timestamp.valueOf(formatTimestamp.format(date));
}
public static Timestamp getCurTimestamp() {
return Timestamp.valueOf(formatTimestamp.format(new Date()));
}
/**
* 取得两个日期之间的日数
*
* @return t1到t2间的日数，如果t2 在 t1之后，返回正数，否则返回负数
*/
public static long daysBetween(java.sql.Timestamp t1, java.sql.Timestamp t2) {
return (t2.getTime() - t1.getTime()) / DAY_MILLI;
}
/**
* 返回java.sql.Timestamp型的SYSDATE
*
* @return java.sql.Timestamp型的SYSDATE
* @since 1.0
* @history
*/
public static java.sql.Timestamp getSysDateTimestamp() {
return new java.sql.Timestamp(System.currentTimeMillis());
}
/**
* 利用缺省的Date格式(YYYY/MM/DD)转换String到java.sql.Timestamp
*
* @param sDate
* Date string
* @return
* @since 1.0
* @history
*/
public static java.sql.Timestamp toSqlTimestamp(String sDate) {
if (sDate == null) {
return null;
}
if (sDate.length() != DateUtils.DATE_FORMAT_DATEONLY.length()
&&sDate.length() != DateUtils.DATE_FORMAT_DATETIME.length()) {
return null;
}
return toSqlTimestamp(sDate,
sDate.length() == DateUtils.DATE_FORMAT_DATEONLY.length()
?DateUtils.DATE_FORMAT_DATEONLY
:DateUtils.DATE_FORMAT_DATETIME);
}
/**
* 利用缺省的Date格式(YYYY/MM/DD hh:mm:ss)转化String到java.sql.Timestamp
*
* @param sDate
* Date string
* @param sFmt
* Date format DATE_FORMAT_DATEONLY/DATE_FORMAT_DATETIME
* @return
* @since 1.0
* @history
*/
public static java.sql.Timestamp toSqlTimestamp(String sDate, String sFmt) {
String temp = null;
if (sDate == null || sFmt == null) {
return null;
}
if (sDate.length() != sFmt.length()) {
return null;
}
if (sFmt.equals(DateUtils.DATE_FORMAT_DATETIME)) {
temp = sDate.replace('/', '-');
temp = temp + ".000000000";
} else if (sFmt.equals(DateUtils.DATE_FORMAT_DATEONLY)) {
temp = sDate.replace('/', '-');
temp = temp + " 00:00:00.000000000";
} else {
return null;
}
return java.sql.Timestamp.valueOf(temp);
}
/**
* 以YYYY/MM/DD HH24:MI:SS格式返回系统日期时间
*
* @return 系统日期时间
* @since 1.0
* @history
*/
public static String getSysDateTimeString() {
return toString(new java.util.Date(System.currentTimeMillis()), DateUtils.sdfDateTime);
}
/**
* 根据指定的Format转化java.util.Date到String
*
* @param dt
* java.util.Date instance
* @param sFmt
* Date format , DATE_FORMAT_DATEONLY or DATE_FORMAT_DATETIME
* @return
* @since 1.0
* @history
*/
public static String toString(java.util.Date dt, String sFmt) {
if (dt == null || sFmt == null || "".equals(sFmt)) {
return "";
}
return toString(dt, new SimpleDateFormat(sFmt));
}
/**
* 利用指定SimpleDateFormat instance转换java.util.Date到String
*
* @param dt
* java.util.Date instance
* @param formatter
* SimpleDateFormat Instance
* @return
* @since 1.0
* @history
*/
private static String toString(java.util.Date dt, SimpleDateFormat formatter) {
String sRet = null;
try {
sRet = formatter.format(dt).toString();
} catch (Exception e) {
logger.error(e);
sRet = null;
}
return sRet;
}
/**
* 转换java.sql.Timestamp到String，格式为YYYY/MM/DD HH24:MI
*
* @param dt
* java.sql.Timestamp instance
* @return
* @since 1.0
* @history
*/
public static String toSqlTimestampString2(java.sql.Timestamp dt) {
if (dt == null) {
return null;
}
String temp = toSqlTimestampString(dt, DateUtils.DATE_FORMAT_DATETIME);
return temp.substring(0, 16);
}
public static String toString(java.sql.Timestamp dt) {
return dt == null ? "" : toSqlTimestampString2(dt);
}
/**
* 根据指定的格式转换java.sql.Timestamp到String
*
* @param dt
* java.sql.Timestamp instance
* @param sFmt
* Date 格式，DATE_FORMAT_DATEONLY/DATE_FORMAT_DATETIME/
* DATE_FORMAT_SESSION
* @return
* @since 1.0
* @history
*/
public static String toSqlTimestampString(java.sql.Timestamp dt, String sFmt) {
String temp = null;
String out = null;
if (dt == null || sFmt == null) {
return null;
}
temp = dt.toString();
if (sFmt.equals(DateUtils.DATE_FORMAT_DATETIME) || // "YYYY/MM/DD
// HH24:MI:SS"
sFmt.equals(DateUtils.DATE_FORMAT_DATEONLY)) { // YYYY/MM/DD
temp = temp.substring(0, sFmt.length());
out = temp.replace('/', '-');
// }else if( sFmt.equals (DateUtils.DATE_FORMAT_SESSION ) ){
// //Session
// out =
// temp.substring(0,4)+temp.substring(5,7)+temp.substring(8,10);
// out += temp.substring(12,14) + temp.substring(15,17);
}
return out;
}
// 得到当前日期的星期
public static int getWeek() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
int w = cal.get(Calendar.DAY_OF_WEEK);
return w;
}
/**
* Timestamp 格式转换成yyyy-MM-dd timestampToSql(Timestamp 格式转换成yyyy-MM-dd)
*
* @param timestamp
* 时间
* @return createTimeStr yyyy-MM-dd 时间
* @Exception 异常对象
* @since V1.0
*/
public static String timestampToStringYMD(java.sql.Timestamp timestamp) {
SimpleDateFormat sdf = new SimpleDateFormat(DateUtils.DATE_FORMAT_DATEONLY);
String createTimeStr = sdf.format(timestamp);
return createTimeStr;
}
/**
* 判断一个时间是否在某个时间区间内
*
* @param now
* 目标时间
* @param start
* 时间区间开始
* @param end
* 时间区间结束
* @param model
* 区间模式
* @return 是否在区间内
*/
public static boolean isBetween(Date now, Date start, Date end, int model) {
return isBetween(now, start, end, model, LEFT_OPEN_RIGHT_OPEN);
}
/**
* 判断时间是否在制定的时间段之类
*
* @param date
* 需要判断的时间
* @param start
* 时间段的起始时间
* @param end
* 时间段的截止时间
* @param interModel
* 区间的模式
*
* <pre>
* 取值：
* LEFT_OPEN_RIGHT_OPEN
* LEFT_CLOSE_RIGHT_OPEN
* LEFT_OPEN_RIGHT_CLOSE
* LEFT_CLOSE_RIGHT_CLOSE
* </pre>
* @param compModel
* 比较的模式
*
* <pre>
* 取值：
* COMP_MODEL_DATE 只比较日期，不比较时间
* COMP_MODEL_TIME 只比较时间，不比较日期
* COMP_MODEL_DATETIME 比较日期，也比较时间
* </pre>
* @return
*/
public static boolean isBetween(Date date, Date start, Date end, int interModel, int compModel) {
if (date == null || start == null || end == null) {
throw new IllegalArgumentException("日期不能为空");
}
SimpleDateFormat format = null;
switch (compModel) {
case COMP_MODEL_DATE: {
format = new SimpleDateFormat("yyyyMMdd");
break;
}
case COMP_MODEL_TIME: {
format = new SimpleDateFormat("HHmmss");
break;
}
case COMP_MODEL_DATETIME: {
format = new SimpleDateFormat("yyyyMMddHHmmss");
break;
}
default: {
throw new IllegalArgumentException(String.format("日期的比较模式[%d]有误", compModel));
}
}
long dateNumber = Long.parseLong(format.format(date));
long startNumber = Long.parseLong(format.format(start));
long endNumber = Long.parseLong(format.format(end));
switch (interModel) {
case LEFT_OPEN_RIGHT_OPEN: {
if (dateNumber <= startNumber || dateNumber >= endNumber) {
return false;
} else {
return true;
}
}
case LEFT_CLOSE_RIGHT_OPEN: {
if (dateNumber < startNumber || dateNumber >= endNumber) {
return false;
} else {
return true;
}
}
case LEFT_OPEN_RIGHT_CLOSE: {
if (dateNumber <= startNumber || dateNumber > endNumber) {
return false;
} else {
return true;
}
}
case LEFT_CLOSE_RIGHT_CLOSE: {
if (dateNumber < startNumber || dateNumber > endNumber) {
return false;
} else {
return true;
}
}
default: {
throw new IllegalArgumentException(String.format("日期的区间模式[%d]有误", interModel));
}
}
}
/**
* 得到当前周起始时间
*
* @param date
* @return
*/
public static Date getWeekStart(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.get(Calendar.WEEK_OF_YEAR);
int firstDay = calendar.getFirstDayOfWeek();
calendar.set(Calendar.DAY_OF_WEEK, firstDay);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 得到当前周截止时间
*
* @param date
* @return
*/
public static Date getWeekEnd(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.get(Calendar.WEEK_OF_YEAR);
int firstDay = calendar.getFirstDayOfWeek();
calendar.set(Calendar.DAY_OF_WEEK, 8 - firstDay);
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 得到当月起始时间
*
* @param date
* @return
*/
public static Date getMonthStart(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DAY_OF_MONTH, 1);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 得到当前年起始时间
*
* @param date
* @return
*/
public static Date getYearStart(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.YEAR, calendar.get(Calendar.YEAR));
calendar.set(Calendar.MONTH, 0);
calendar.set(Calendar.DAY_OF_MONTH, 1);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 得到当前年最后一天
*
* @param date
* @return
*/
public static Date getYearEnd(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.YEAR, calendar.get(Calendar.YEAR));
calendar.set(Calendar.MONTH, 11);
calendar.set(Calendar.DAY_OF_MONTH, 31);
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 取得月天数
*
* @param date
* @return
*/
public static int getDayOfMonth(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.getActualMaximum(Calendar.DAY_OF_MONTH);
}
/**
* 取得月第一天
*
* @param date
* @return
*/
public static Date getFirstDateOfMonth(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
c.set(Calendar.DAY_OF_MONTH, c.getActualMinimum(Calendar.DAY_OF_MONTH));
return c.getTime();
}
/**
* 取得月最后一天
*
* @param date
* @return
*/
public static Date getLastDateOfMonth(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
c.set(Calendar.DAY_OF_MONTH, c.getActualMaximum(Calendar.DAY_OF_MONTH));
return c.getTime();
}
/**
* 取得季度第一天
*
* @param date
* @return
*/
public static Date getSeasonStart(Date date) {
return getDayStart(getFirstDateOfMonth(getSeasonDate(date)[0]));
}
/**
* 取得季度最后一天
*
* @param date
* @return
*/
public static Date getSeasonEnd(Date date) {
return getDayEnd(getLastDateOfMonth(getSeasonDate(date)[2]));
}
/**
* 取得季度月
*
* @param date
* @return
*/
public static Date[] getSeasonDate(Date date) {
Date[] season = new Date[3];
Calendar c = Calendar.getInstance();
c.setTime(date);
int nSeason = getSeason(date);
if (nSeason == 1) {// 第一季度
c.set(Calendar.MONTH, Calendar.JANUARY);
season[0] = c.getTime();
c.set(Calendar.MONTH, Calendar.FEBRUARY);
season[1] = c.getTime();
c.set(Calendar.MONTH, Calendar.MARCH);
season[2] = c.getTime();
} else if (nSeason == 2) {// 第二季度
c.set(Calendar.MONTH, Calendar.APRIL);
season[0] = c.getTime();
c.set(Calendar.MONTH, Calendar.MAY);
season[1] = c.getTime();
c.set(Calendar.MONTH, Calendar.JUNE);
season[2] = c.getTime();
} else if (nSeason == 3) {// 第三季度
c.set(Calendar.MONTH, Calendar.JULY);
season[0] = c.getTime();
c.set(Calendar.MONTH, Calendar.AUGUST);
season[1] = c.getTime();
c.set(Calendar.MONTH, Calendar.SEPTEMBER);
season[2] = c.getTime();
} else if (nSeason == 4) {// 第四季度
c.set(Calendar.MONTH, Calendar.OCTOBER);
season[0] = c.getTime();
c.set(Calendar.MONTH, Calendar.NOVEMBER);
season[1] = c.getTime();
c.set(Calendar.MONTH, Calendar.DECEMBER);
season[2] = c.getTime();
}
return season;
}
/**
*
* 1 第一季度 2 第二季度 3 第三季度 4 第四季度
*
* @param date
* @return
*/
public static int getSeason(Date date) {
int season = 0;
Calendar c = Calendar.getInstance();
c.setTime(date);
int month = c.get(Calendar.MONTH);
switch (month) {
case Calendar.JANUARY:
case Calendar.FEBRUARY:
case Calendar.MARCH:
season = 1;
break;
case Calendar.APRIL:
case Calendar.MAY:
case Calendar.JUNE:
season = 2;
break;
case Calendar.JULY:
case Calendar.AUGUST:
case Calendar.SEPTEMBER:
season = 3;
break;
case Calendar.OCTOBER:
case Calendar.NOVEMBER:
case Calendar.DECEMBER:
season = 4;
break;
default:
break;
}
return season;
}
public static int getWeekOfYear(Date date)
{
Calendar calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.setTime(date);
return calendar.get(Calendar.WEEK_OF_YEAR);
}
public static int getMonthOfYear(Date date)
{
Calendar calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.setTime(date);
return calendar.get(Calendar.WEEK_OF_MONTH);
}
/**
* 字符串转date
*
* @param dateString
* @return
*/
public static Date StringToDate(String dateString) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
Date date = null;
try {
date = sdf.parse(dateString);
} catch (ParseException e) {
logger.error(e);
}
return date;
}
/**
* 判断输入日期是一个星期中的第几天(星期天为一个星期第一天)
*
* @param date
* @return
*/
public static int getWeekIndex(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
return calendar.get(Calendar.DAY_OF_WEEK);
}
/**
* 当前时间的前几天，并且以例如2013/12/09 00:00:00 形式输出
*/
public static Date subDays(int days) {
Date date = addDay(new Date(), -days);
String dateStr = getReqDate(date);
Date date1 = null;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
try {
date1 = sdf.parse(dateStr);
} catch (ParseException e) {
logger.error(e);
}
return date1;
}
/**
* 判断开始时间和结束时间，是否超出了当前时间的一定的间隔数限制 如：开始时间和结束时间，不能超出距离当前时间90天
*
* @param startDate
* 开始时间
* @param endDate
* 结束时间按
* @param interval
* 间隔数
* @param dateUnit
* 单位(如：月，日),参照Calendar的时间单位
* @return
*/
public static boolean isOverIntervalLimit(Date startDate, Date endDate, int interval, int dateUnit) {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(dateUnit, interval * (-1));
Date curDate = getDayStart(cal.getTime());
if (getDayStart(startDate).compareTo(curDate) < 0 || getDayStart(endDate).compareTo(curDate) < 0) {
return true;
}
return false;
}
/**
* 判断开始时间和结束时间，是否超出了当前时间的一定的间隔数限制, 时间单位默认为天数 如：开始时间和结束时间，不能超出距离当前时间90天
*
* @param startDate
* 开始时间
* @param endDate
* 结束时间按
* @param interval
* 间隔数
* @return
*/
public static boolean isOverIntervalLimit(Date startDate, Date endDate, int interval) {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.DAY_OF_MONTH, interval * (-1));
Date curDate = getDayStart(cal.getTime());
if (getDayStart(startDate).compareTo(curDate) < 0 || getDayStart(endDate).compareTo(curDate) < 0) {
return true;
}
return false;
}
/**
* 判断开始时间和结束时间，是否超出了当前时间的一定的间隔数限制, 时间单位默认为天数 如：开始时间和结束时间，不能超出距离当前时间90天
*
* @param startDate
* 开始时间
* @param endDate
* 结束时间按
* @param interval
* 间隔数
* @return
*/
public static boolean isOverIntervalLimit(String startDateStr, String endDateStr, int interval) {
Date startDate = null;
Date endDate = null;
try {
startDate = DateUtils.parseDate(startDateStr, DateUtils.DATE_FORMAT_DATEONLY);
endDate = DateUtils.parseDate(endDateStr, DateUtils.DATE_FORMAT_DATEONLY);
} catch (ParseException e) {
logger.error(e);
return false;
}
return isOverIntervalLimit(startDate, endDate, interval);
}
/**
* 传入时间字符串及时间格式，返回对应的Date对象
*
* @param src
* 时间字符串
* @param pattern
* 时间格式
* @return Date
*/
public static java.util.Date getDateFromString(String src, String pattern) {
SimpleDateFormat f = new SimpleDateFormat(pattern);
try {
return f.parse(src);
} catch (ParseException e) {
return null;
}
}
/**
* 取季度
*
* @param date
* @return
*/
@SuppressWarnings("deprecation")
public static int getQuarter(Date date) {
if (date.getMonth() == 0 || date.getMonth() == 1 || date.getMonth() == 2) {
return 1;
} else if (date.getMonth() == 3 || date.getMonth() == 4 || date.getMonth() == 5) {
return 2;
} else if (date.getMonth() == 6 || date.getMonth() == 7 || date.getMonth() == 8) {
return 3;
} else if (date.getMonth() == 9 || date.getMonth() == 10 || date.getMonth() == 11) {
return 4;
} else {
return 0;
}
}
/**
* 取得通用日期时间格式字符串
*
* @param Date
* @return String
*/
public static String formatDate(Date date) {
if (date == null) {
return "";
}
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return dateFormat.format(date);
}
/**
* 获取当日的日期格式串
*
* @param
* @return String
*/
public static String today() {
return formatDate(new Date(), "yyyy-MM-dd");
}
/**
* 获取当前时间格式串
*
* @param
* @return String
*/
public static String currentTime() {
return formatDate(new Date(), "yyyyMMddhhmmssSSS");
}
/**
* 取得指定日期格式的字符串
*
* @param Date
* @return String
*/
public static String formatDate(Date date, String format) {
SimpleDateFormat dateFormat = new SimpleDateFormat(format);
return dateFormat.format(date);
}
/**
* 获取昨日的日期格式串
*
* @return Date
*/
public static String getYesterday() {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DATE, -1);
return formatDate(calendar.getTime(), "yyyy-MM-dd");
}
/**
* 判断当前时间是否在一定的时间范围内
*
* @param String
* @return boolean
*/
public static boolean isInBetweenTimes(String startTime, String endTime) {
Date nowTime = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
String time = sdf.format(nowTime);
if (time.compareTo(startTime) >= 0 && time.compareTo(endTime) <= 0) {
return true;
} else {
return false;
}
}
/**
* 字符转日期
*
* @param dateStr
* @return
*/
public static Date getDateByStr(String dateStr) {
SimpleDateFormat formatter = null;
if (dateStr == null) {
return null;
} else if (dateStr.length() == 10) {
formatter = new SimpleDateFormat("yyyy-MM-dd");
} else if (dateStr.length() == 16) {
formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm");
} else if (dateStr.length() == 19) {
formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
} else if (dateStr.length() > 19) {
dateStr = dateStr.substring(0, 19);
formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
} else {
return null;
}
try {
return formatter.parse(dateStr);
} catch (ParseException e) {
logger.error(e);
return null;
}
}
/**
* 根据传入的数字，输出相比现在days天的数据
*
* @param days
* @return Date
*/
public static Date getDate(int days) {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DATE, days);
return calendar.getTime();
}
/**
* 日期最大时间
*
* @param dt
* @return
*/
public static Date getMaxTime(Date dt) {
Date dt1 = null;
Calendar ca = Calendar.getInstance();
ca.setTime(dt);
ca.add(Calendar.DAY_OF_MONTH, 1);
dt1 = ca.getTime();
dt1 = DateUtils.getMinTime(dt1);
ca.setTime(dt1);
ca.add(Calendar.SECOND, -1);
dt1 = ca.getTime();
return dt1;
}
/**
* 日期最小时间
*
* @param dt
* @return
*/
public static Date getMinTime(Date dt) {
Date dt1 = null;
dt1 = DateUtils.getDateByStr(DateUtils.formatDate(dt, "yyyy-MM-dd"));
return dt1;
}
/**
* 月的最后一天
*
* @param sDate1
* @return
*/
@SuppressWarnings("deprecation")
public static Date getLastDayOfMonth(Date date) {
Calendar cDay1 = Calendar.getInstance();
cDay1.setTime(date);
int lastDay = cDay1.getActualMaximum(Calendar.DAY_OF_MONTH);
Date lastDate = cDay1.getTime();
lastDate.setDate(lastDay);
return lastDate;
}
/**
* 月的第一天
*
* @param date
* @return
*/
public static Date getFirstDayOfMonth(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DATE, calendar.getActualMinimum(Calendar.DATE));
return calendar.getTime();
}
/**
* 上月第一天
*
* @return
*/
public static Date getPreviousMonthFirstDay() {
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.MONTH, -1);// 减一个月，变为下月的1号
return getMinTime(lastDate.getTime());
}
/**
* 上月最后一天
*
* @return
*/
public static Date getPreviousMonthLastDay() {
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.DATE, -1);
return getMinTime(lastDate.getTime());
}
/**
* 两个日期相关天数
*
* @param startDate
* @param endDate
* @return
*/
public static long getDateDiff(String startDate, String endDate) {
long diff = 0;
try {
Date date1 = new SimpleDateFormat("yyyy-MM-dd").parse(startDate);
Date date2 = new SimpleDateFormat("yyyy-MM-dd").parse(endDate);
diff = (date1.getTime() - date2.getTime()) / (24 * 60 * 60 * 1000) > 0 ? (date1.getTime() - date2.getTime())
/ (24 * 60 * 60 * 1000)
: (date2.getTime() - date1.getTime()) / (24 * 60 * 60 * 1000);
} catch (ParseException e) {
}
return diff;
}
public static long getDateDiff(Date date1, Date date2) {
if (ValidateUtils.isEmpty(date1) || ValidateUtils.isEmpty(date1)) {
return 0L;
}
long diff = (date1.getTime() - date2.getTime()) / (24 * 60 * 60 * 1000) > 0 ? (date1.getTime() - date2
.getTime()) / (24 * 60 * 60 * 1000) : (date2.getTime() - date1.getTime()) / (24 * 60 * 60 * 1000);
return diff;
}
/*
* 判断两个时间是不是在一个周中
*/
public static boolean isSameWeekWithToday(Date date) {
if (date == null) {
return false;
}
// 0.先把Date类型的对象转换Calendar类型的对象
Calendar todayCal = Calendar.getInstance();
Calendar dateCal = Calendar.getInstance();
todayCal.setTime(new Date());
dateCal.setTime(date);
int subYear = todayCal.get(Calendar.YEAR) - dateCal.get(Calendar.YEAR);
// subYear==0,说明是同一年
if (subYear == 0) {
if (todayCal.get(Calendar.WEEK_OF_YEAR) == dateCal.get(Calendar.WEEK_OF_YEAR))
return true;
} else if (subYear == 1 && dateCal.get(Calendar.MONTH) == 11 && todayCal.get(Calendar.MONTH) == 0) {
if (todayCal.get(Calendar.WEEK_OF_YEAR) == dateCal.get(Calendar.WEEK_OF_YEAR))
return true;
} else if (subYear == -1 && todayCal.get(Calendar.MONTH) == 11 && dateCal.get(Calendar.MONTH) == 0) {
if (todayCal.get(Calendar.WEEK_OF_YEAR) == dateCal.get(Calendar.WEEK_OF_YEAR))
return true;
}
return false;
}
/**
* getStrFormTime:
*
* @param form
* 格式时间
* @param date
* 时间
* @return
*/
public static String getStrFormTime(String form, Date date) {
SimpleDateFormat sdf = new SimpleDateFormat(form);
return sdf.format(date);
}
/**
* 获取几天内日期 return 2014-5-4、2014-5-3
*/
public static List<String> getLastDays(int countDay) {
List<String> listDate = new ArrayList<String>();
for (int i = 0; i < countDay; i++) {
listDate.add(DateUtils.getReqDateyyyyMMdd(DateUtils.getDate(-i)));
}
return listDate;
}
/**
* 对时间进行格式化
*
* @param date
* @return
*/
public static Date dateFormat(Date date) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date value = new Date();
try {
value = sdf.parse(sdf.format(date));
} catch (ParseException e) {
e.printStackTrace();
}
return value;
}
public static void main(String[] args) {
Date date3 = DateUtils.addMinutes(new Date(), 5);
System.out.println(new Date().after(DateUtils.addMinute(new Date(), -10)));
Date date1 = DateUtils.addMinutes(new Date(), -1);
Date date2 = DateUtils.addMinutes(date1, 5);
System.out.println(date1);
System.out.println(date2);
System.out.println(DateUtils.isBetween(new Date(), date1, date2, DateUtils.COMP_MODEL_TIME));
Integer a = 1;
int b = 1;
System.out.println(a == b);
}
}
转自：https://www.cnblogs.com/kangds/p/6496674.html