日期工具类「建议收藏」

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下面的为一个工具类，具体就是处理时间的，我相信总有一个会帮到你

package com.tomorrowgold.common.util;

import org.apache.log4j.Logger;

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;

/**

* 日期工具类

*

*/

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

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);

// Global SimpleDateFormat object

public static SimpleDateFormat sdfDateOnly = new SimpleDateFormat(DateUtils.DATE_FORMAT_DATEONLY);

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 HMS_FORMAT = new SimpleDateFormat(“HH:mm:ss”);

public static final SimpleDateFormat formatTimestamp = new SimpleDateFormat(“yyyy-MM-dd 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) {

try {

return parseDate(str, new String[] { parsePatterns });

} catch (ParseException e) {

logger.error(e);

return null;

}

}

/**

* 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 tmp

* @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 hour

* @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(Timestamp t1, 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 Timestamp getSysDateTimestamp() {

return new 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 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 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 if( sFmt.equals (DateUtils.DATE_FORMAT_SESSION )){

// //Format: 200009301230

// temp =

// sDate.substring(0,4)+”-“+sDate.substring(4,6)+”-“+sDate.substring(6,8);

// temp += ” ” + sDate.substring(8,10) + “:” +

// sDate.substring(10,12) + “:00.000000000”;

} else {

return null;

}

// java.sql.Timestamp.value() 要求的格式必须为yyyy-mm-dd hh:mm:ss.fffffffff

return 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 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(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(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(Timestamp dt) {

if (dt == null) {

return null;

}

String temp = toSqlTimestampString(dt, DateUtils.DATE_FORMAT_DATETIME);

return temp.substring(0, 16);

}

public static String toString(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(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(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;

}

/**

* 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 startDateStr

* 开始时间

* @param endDateStr

* 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;

startDate = DateUtils.parseDate(startDateStr, DateUtils.DATE_FORMAT_DATEONLY);

endDate = DateUtils.parseDate(endDateStr, DateUtils.DATE_FORMAT_DATEONLY);

if (startDate == null || endDate == null){

return true;

}

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 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 startTime

* @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() == 14) {

formatter = new SimpleDateFormat(“yyyyMMddHHmmss”);

}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 date

* @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;

}

/**

* 返回天数

* @param date1

* @param date2

* @return

*/

public static long getDateDiff(Date date1, Date date2) {

if (date1 == null || date2 == null) {

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;

}

/**

* 判断两个时间的相差年数

* @param date1

* @param date2

* @return

*/

public static int getYearDiff(Date date1, Date date2){

if (date1 == null || date2 == null) {

return 0;

}

Calendar calendar1 = Calendar.getInstance();

calendar1.setTime(date1);

int year1 = calendar1.get(Calendar.YEAR);

Calendar calendar2 = Calendar.getInstance();

calendar2.setTime(date2);

int year2 = calendar2.get(Calendar.YEAR);

return Math.abs( year1 – year2);

}

/**

* 获取两个时间的毫秒数

* @param date1

* @param date2

* @return

*/

public static long getTimeDiff(Date date1, Date date2){

if (date1 == null || date1 == null) {

return 0L;

}

long diff = (date1.getTime() – date2.getTime()) > 0 ? (date1.getTime() – date2

.getTime()) : (date2.getTime() – date1.getTime()) ;

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: <br/>

*

* @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 boolean isSameDayWithToday(Date date) {

if (date == null) {

return false;

}

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);

int subMouth = todayCal.get(Calendar.MONTH) – dateCal.get(Calendar.MONTH);

int subDay = todayCal.get(Calendar.DAY_OF_MONTH) – dateCal.get(Calendar.DAY_OF_MONTH);

if (subYear == 0 && subMouth == 0 && subDay == 0) {

return true;

}

return false;

}

public static Integer currentUnixTime(){

return (int)(System.currentTimeMillis()/1000);

}

//时间字符串转时间戳

public static Integer dateTimeStamp(String date_str,String format){

try {

SimpleDateFormat sdf = new SimpleDateFormat(format);

Long time = sdf.parse(date_str).getTime()/1000;

return time.intValue();

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

/**

* 将当前时间转化为10位的时间戳

*

* @param

* @return

**/

public static Integer convertTimeStamp(){

//将13位时间戳转化为字符串类型的10位时间戳

String timestamp = String.format(“%010d”, System.currentTimeMillis()/1000);

//将字符串类型的10位时间戳转化为int类型的10位时间戳

Integer stamp = Integer.valueOf(timestamp);

return stamp;

}

}