java日期工具類代碼示例

適用於各種日期函數方法,直接上代碼,大家對號入座:


package com.roncoo.pay.common.core.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;


/**
 * 日期工具類
 * 
 * @author zh
 * 
 */
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;
	/**
	 * 比較日期的模式 --只比較日期,不比較時間
	 */
	public final static int COMP_MODEL_DATE = 1;
	/**
	 * 比較日期的模式 --只比較時間,不比較日期
	 */
	public final static int COMP_MODEL_TIME = 2;
	/**
	 * 比較日期的模式 --比較日期,也比較時間
	 */
	public final static int COMP_MODEL_DATETIME = 3;

	private static Logger logger = Logger.getLogger(DateUtils.class);

	/**
	 * 要用到的DATE Format的定義
	 */
	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");

	/**
	 * 根據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 解析後日期
	 * @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;
		}
	}

	/**
	 * 根據單位字段比較兩個日期
	 * 
	 * @param date
	 *            日期1
	 * @param otherDate
	 *            日期2
	 * @param withUnit
	 *            單位字段,從Calendar field取值
	 * @return 等於返回0值, 大於返回大於0的值 小於返回小於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 單位字段 " + withUnit + " 不合法!!");
		}
		return dateCal.compareTo(otherDateCal);
	}

	/**
	 * 根據單位字段比較兩個時間
	 * 
	 * @param date
	 *            時間1
	 * @param otherDate
	 *            時間2
	 * @param withUnit
	 *            單位字段,從Calendar field取值
	 * @return 等於返回0值, 大於返回大於0的值 小於返回小於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 單位字段 " + withUnit + " 不合法!!");
		}
		return dateCal.compareTo(otherDateCal);
	}

	/**
	 * 獲得當前的日期毫秒
	 * 
	 * @return
	 */
	public static long nowTimeMillis() {
		return System.currentTimeMillis();
	}

	/**
	 * 獲得當前的時間戳
	 * 
	 * @return
	 */
	public static Timestamp nowTimeStamp() {
		return new Timestamp(nowTimeMillis());
	}

	/**
	 * yyyy-MM-dd 當前日期
	 * 
	 */
	public static String getReqDate() {
		return SHORTDATEFORMAT.format(new Date());
	}

	/**
	 * yyyy-MM-dd 傳入日期
	 * 
	 * @param date
	 * @return
	 */
	public static String getReqDate(Date date) {
		return SHORT_DATE_FORMAT.format(date);
	}

	/**
	 * yyyyMMdd 傳入日期
	 * 
	 * @param date
	 * @return
	 */
	public static String getReqDateyyyyMMdd(Date date) {
		return SHORTDATEFORMAT.format(date);
	}

	/**
	 * yyyy-MM-dd 傳入的時間戳
	 * 
	 * @param tmp
	 * @return
	 */
	public static String TimestampToDateStr(Timestamp tmp) {
		return SHORT_DATE_FORMAT.format(tmp);
	}

	/**
	 * HH:mm:ss 當前時間
	 * 
	 * @return
	 */
	public static String getReqTime() {
		return HMS_FORMAT.format(new Date());
	}

	/**
	 * 得到時間戳格式字串
	 * 
	 * @param date
	 * @return
	 */
	public static String getTimeStampStr(Date date) {
		return LONG_DATE_FORMAT.format(date);
	}

	/**
	 * 得到長日期格式字串
	 * 
	 * @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());
	}

	/**
	 * 計算 second 秒後的時間
	 * 
	 * @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();
	}

	/**
	 * 計算 minute 分鐘後的時間
	 * 
	 * @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();
	}

	/**
	 * 計算 hour 小時後的時間
	 * 
	 * @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的起始時間點。
	 * 
	 * @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的終止時間點.
	 * 
	 * @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();
	}

	/**
	 * 計算 day 天后的時間
	 * 
	 * @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的終止時間點.
	 * 
	 * @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()));
	}

	/**
	 * 取得兩個日期之間的日數
	 * 
	 * @return t1到t2間的日數,如果t2 在 t1之後,返回正數,否則返回負數
	 */
	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)轉換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)轉化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 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() 要求的格式必須爲yyyy-mm-dd hh:mm:ss.fffffffff
		return java.sql.Timestamp.valueOf(temp);
	}

	/**
	 * 以YYYY/MM/DD HH24:MI:SS格式返回系統日期時間
	 * 
	 * @return 系統日期時間
	 * @since 1.0
	 * @history
	 */
	public static String getSysDateTimeString() {
		return toString(new java.util.Date(System.currentTimeMillis()), DateUtils.sdfDateTime);
	}

	/**
	 * 根據指定的Format轉化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轉換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;
	}

	/**
	 * 轉換java.sql.Timestamp到String,格式爲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);
	}

	/**
	 * 根據指定的格式轉換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;
	}

	// 得到當前日期的星期
	public static int getWeek() {
		Calendar cal = Calendar.getInstance();
		cal.setTime(new Date());
		int w = cal.get(Calendar.DAY_OF_WEEK);
		return w;
	}

	/**
	 * Timestamp 格式轉換成yyyy-MM-dd timestampToSql(Timestamp 格式轉換成yyyy-MM-dd)
	 * 
	 * @param timestamp
	 *            時間
	 * @return createTimeStr yyyy-MM-dd 時間
	 * @Exception 異常對象
	 * @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;
	}

	/**
	 * 判斷一個時間是否在某個時間區間內
	 * 
	 * @param now
	 *            目標時間
	 * @param start
	 *            時間區間開始
	 * @param end
	 *            時間區間結束
	 * @param model
	 *            區間模式
	 * @return 是否在區間內
	 */
	public static boolean isBetween(Date now, Date start, Date end, int model) {
		return isBetween(now, start, end, model, LEFT_OPEN_RIGHT_OPEN);
	}

	/**
	 * 判斷時間是否在制定的時間段之類
	 * 
	 * @param date
	 *            需要判斷的時間
	 * @param start
	 *            時間段的起始時間
	 * @param end
	 *            時間段的截止時間
	 * @param interModel
	 *            區間的模式
	 * 
	 *            <pre>
	 * 		取值:
	 * 			LEFT_OPEN_RIGHT_OPEN
	 * 			LEFT_CLOSE_RIGHT_OPEN
	 * 			LEFT_OPEN_RIGHT_CLOSE
	 * 			LEFT_CLOSE_RIGHT_CLOSE
	 * </pre>
	 * @param compModel
	 *            比較的模式
	 * 
	 *            <pre>
	 * 		取值:
	 * 			COMP_MODEL_DATE		只比較日期,不比較時間
	 * 			COMP_MODEL_TIME		只比較時間,不比較日期
	 * 			COMP_MODEL_DATETIME 比較日期,也比較時間
	 * </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("日期不能爲空");
		}
		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("日期的比較模式[%d]有誤", 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("日期的區間模式[%d]有誤", interModel));
		}
		}
	}

	/**
	 * 得到當前周起始時間
	 * 
	 * @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();
	}

	/**
	 * 得到當前周截止時間
	 * 
	 * @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();
	}

	/**
	 * 得到當月起始時間
	 * 
	 * @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();
	}

	/**
	 * 得到當前年起始時間
	 * 
	 * @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();
	}

	/**
	 * 得到當前年最後一天
	 * 
	 * @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();
	}

	/**
	 * 取得月天數
	 * 
	 * @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();
	}

	/**
	 * 取得月最後一天
	 * 
	 * @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]));
	}

	/**
	 * 取得季度最後一天
	 * 
	 * @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;
	}

	/**
	 * 字符串轉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;
	}

	/**
	 * 判斷輸入日期是一個星期中的第幾天(星期天爲一個星期第一天)
	 * 
	 * @param date
	 * @return
	 */
	public static int getWeekIndex(Date date) {
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(date);
		return calendar.get(Calendar.DAY_OF_WEEK);
	}

	/**
	 * 當前時間的前幾天,並且以例如2013/12/09 00:00:00 形式輸出
	 */
	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;
	}

	/**
	 * 判斷開始時間和結束時間,是否超出了當前時間的一定的間隔數限制 如:開始時間和結束時間,不能超出距離當前時間90天
	 * 
	 * @param startDate
	 *            開始時間
	 * @param endDate
	 *            結束時間按
	 * @param interval
	 *            間隔數
	 * @param dateUnit
	 *            單位(如:月,日),參照Calendar的時間單位
	 * @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;
	}

	/**
	 * 判斷開始時間和結束時間,是否超出了當前時間的一定的間隔數限制, 時間單位默認爲天數 如:開始時間和結束時間,不能超出距離當前時間90天
	 * 
	 * @param startDate
	 *            開始時間
	 * @param endDate
	 *            結束時間按
	 * @param interval
	 *            間隔數
	 * @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;
	}

	/**
	 * 判斷開始時間和結束時間,是否超出了當前時間的一定的間隔數限制, 時間單位默認爲天數 如:開始時間和結束時間,不能超出距離當前時間90天
	 * 
	 * @param startDateStr
	 *            開始時間
	 * @param endDateStr
	 *            結束時間按
	 * @param interval
	 *            間隔數
	 * @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);
	}

	/**
	 * 傳入時間字符串及時間格式,返回對應的Date對象
	 * 
	 * @param src
	 *            時間字符串
	 * @param pattern
	 *            時間格式
	 * @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;

		}
	}

	/**
	 * 取得通用日期時間格式字符串
	 * 
	 * @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);
	}

	/**
	 * 獲取當日的日期格式串
	 * 
	 * @param
	 * @return String
	 */
	public static String today() {
		return formatDate(new Date(), "yyyy-MM-dd");
	}

	/**
	 * 獲取當前時間格式串
	 * 
	 * @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);
	}

	/**
	 * 獲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");
	}

	/**
	 * 判斷當前時間是否在一定的時間範圍內
	 * 
	 * @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;
		}
	}

	/**
	 * 字符轉日期
	 * 
	 * @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;
		}
	}

	/**
	 * 根據傳入的數字,輸出相比現在days天的數據
	 * 
	 * @param days
	 * @return Date
	 */
	public static Date getDate(int days) {
		Calendar calendar = Calendar.getInstance();
		calendar.add(Calendar.DATE, days);
		return calendar.getTime();
	}

	/**
	 * 日期最大時間
	 * 
	 * @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;
	}

	/**
	 * 日期最小時間
	 * 
	 * @param dt
	 * @return
	 */
	public static Date getMinTime(Date dt) {
		Date dt1 = null;
		dt1 = DateUtils.getDateByStr(DateUtils.formatDate(dt, "yyyy-MM-dd"));
		return dt1;
	}

	/**
	 * 月的最後一天
	 * 
	 * @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);// 設爲當前月的1號
		lastDate.add(Calendar.MONTH, -1);// 減一個月,變爲下月的1號
		return getMinTime(lastDate.getTime());
	}

	/**
	 * 上月最後一天
	 * 
	 * @return
	 */
	public static Date getPreviousMonthLastDay() {
		Calendar lastDate = Calendar.getInstance();
		lastDate.set(Calendar.DATE, 1);// 設爲當前月的1號
		lastDate.add(Calendar.DATE, -1);
		return getMinTime(lastDate.getTime());
	}

	/**
	 * 兩個日期相關天數
	 * 
	 * @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;
	}

	/**
	 * 返回天數
	 * @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;
	}

	/**
	 * 判斷兩個時間的相差年數
	 * @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);
	}

	/**
	 * 獲取兩個時間的毫秒數
	 * @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;
	}

	/*
	 * 判斷兩個時間是不是在一個週中
	 */
	public static boolean isSameWeekWithToday(Date date) {

		if (date == null) {
			return false;
		}

		// 0.先把Date類型的對象轉換Calendar類型的對象
		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,說明是同一年
		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
	 *            格式時間
	 * @param date
	 *            時間
	 * @return
	 */
	public static String getStrFormTime(String form, Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat(form);
		return sdf.format(date);
	}

	/**
	 * 獲取幾天內日期 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;
	}

	/**
	 * 對時間進行格式化
	 * 
	 * @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;
	}

}

 

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