JAVA日期查詢：季度、月份、星期等時間資訊

package com.stt.dateChange;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;/** *  * @author zengms * @date 2012-12-27 *  */public class DateUtils {private static final Log logger = LogFactory.getLog(DateUtils.class);public static final String YYYYMMDD = "yyyy-MM-dd";public static final String YYYYMMDD_ZH = "yyyy年MM月dd日";public static final int FIRST_DAY_OF_WEEK = Calendar.MONDAY; // 中國周一是一周的第一天/** *  * @param strDate * @return */public static Date parseDate(String strDate) {return parseDate(strDate, null);}/** * parseDate *  * @param strDate * @param pattern * @return */public static Date parseDate(String strDate, String pattern) {Date date = null;try {if (pattern == null) {pattern = YYYYMMDD;}SimpleDateFormat format = new SimpleDateFormat(pattern);date = format.parse(strDate);} catch (Exception e) {logger.error("parseDate error:" + e);}return date;}/** * format date *  * @param date * @return */public static String formatDate(Date date) {return formatDate(date, null);}/** * format date *  * @param date * @param pattern * @return */public static String formatDate(Date date, String pattern) {String strDate = null;try {if (pattern == null) {pattern = YYYYMMDD;}SimpleDateFormat format = new SimpleDateFormat(pattern);strDate = format.format(date);} catch (Exception e) {logger.error("formatDate error:", e);}return strDate;}/** * 取得日期：年 *  * @param date * @return */public static int getYear(Date date) {Calendar c = Calendar.getInstance();c.setTime(date);int year = c.get(Calendar.YEAR);return year;}/** * 取得日期：年 *  * @param date * @return */public static int getMonth(Date date) {Calendar c = Calendar.getInstance();c.setTime(date);int month = c.get(Calendar.MONTH);return month + 1;}/** * 取得日期：年 *  * @param date * @return */public static int getDay(Date date) {Calendar c = Calendar.getInstance();c.setTime(date);int da = c.get(Calendar.DAY_OF_MONTH);return da;}/** * 取得當天日期是周幾 *  * @param date * @return */public static int getWeekDay(Date date) {Calendar c = Calendar.getInstance();c.setTime(date);int week_of_year = c.get(Calendar.DAY_OF_WEEK);return week_of_year - 1;}/** * 取得一年的第幾周 *  * @param date * @return */public static int getWeekOfYear(Date date) {Calendar c = Calendar.getInstance();c.setTime(date);int week_of_year = c.get(Calendar.WEEK_OF_YEAR);return week_of_year;}/** * getWeekBeginAndEndDate *  * @param date * @param pattern * @return */public static String getWeekBeginAndEndDate(Date date, String pattern) {Date monday = getMondayOfWeek(date);Date sunday = getSundayOfWeek(date);return formatDate(monday, pattern) + " - "+ formatDate(sunday, pattern);}/** * 根據日期取得對應周周一日期 *  * @param date * @return */public static Date getMondayOfWeek(Date date) {Calendar monday = Calendar.getInstance();monday.setTime(date);monday.setFirstDayOfWeek(FIRST_DAY_OF_WEEK);monday.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);return monday.getTime();}/** * 根據日期取得對應周周日日期 *  * @param date * @return */public static Date getSundayOfWeek(Date date) {Calendar sunday = Calendar.getInstance();sunday.setTime(date);sunday.setFirstDayOfWeek(FIRST_DAY_OF_WEEK);sunday.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);return sunday.getTime();}/** * 取得月的剩餘天數 *  * @param date * @return */public static int getRemainDayOfMonth(Date date) {int dayOfMonth = getDayOfMonth(date);int day = getPassDayOfMonth(date);return dayOfMonth - day;}/** * 取得月已經過的天數 *  * @param date * @return */public static int getPassDayOfMonth(Date date) {Calendar c = Calendar.getInstance();c.setTime(date);return c.get(Calendar.DAY_OF_MONTH);}/** * 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 getFirstDateOfSeason(Date date) {return getFirstDateOfMonth(getSeasonDate(date)[0]);}/** * 取得季度最後一天 *  * @param date * @return */public static Date getLastDateOfSeason(Date date) {return getLastDateOfMonth(getSeasonDate(date)[2]);}/** * 取得季度天數 *  * @param date * @return */public static int getDayOfSeason(Date date) {int day = 0;Date[] seasonDates = getSeasonDate(date);for (Date date2 : seasonDates) {day += getDayOfMonth(date2);}return day;}/** * 取得季度剩餘天數 *  * @param date * @return */public static int getRemainDayOfSeason(Date date) {return getDayOfSeason(date) - getPassDayOfSeason(date);}/** * 取得季度已過天數 *  * @param date * @return */public static int getPassDayOfSeason(Date date) {int day = 0;Date[] seasonDates = getSeasonDate(date);Calendar c = Calendar.getInstance();c.setTime(date);int month = c.get(Calendar.MONTH);if (month == Calendar.JANUARY || month == Calendar.APRIL|| month == Calendar.JULY || month == Calendar.OCTOBER) {// 季度第一個月day = getPassDayOfMonth(seasonDates[0]);} else if (month == Calendar.FEBRUARY || month == Calendar.MAY|| month == Calendar.AUGUST || month == Calendar.NOVEMBER) {// 季度第二個月day = getDayOfMonth(seasonDates[0])+ getPassDayOfMonth(seasonDates[1]);} else if (month == Calendar.MARCH || month == Calendar.JUNE|| month == Calendar.SEPTEMBER || month == Calendar.DECEMBER) {// 季度第三個月day = getDayOfMonth(seasonDates[0]) + getDayOfMonth(seasonDates[1])+ getPassDayOfMonth(seasonDates[2]);}return day;}/** * 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 void main(String[] args) {String strDate = "2013-01-01";Date date = parseDate(strDate);System.out.println(strDate + " 今天是哪一年。" + getYear(date));System.out.println(strDate + " 今天是哪個月。" + getMonth(date));System.out.println(strDate + " 今天是幾號。" + getDay(date));System.out.println(strDate + " 今天是周幾。" + getWeekDay(date));System.out.println(strDate + " 是一年的第幾周。" + getWeekOfYear(date));System.out.println(strDate + " 所在周起始結束日期。"+ getWeekBeginAndEndDate(date, "yyyy年MM月dd日"));System.out.println(strDate + " 所在周周一是。"+ formatDate(getMondayOfWeek(date)));System.out.println(strDate + " 所在周周日是。"+ formatDate(getSundayOfWeek(date)));System.out.println(strDate + " 當月第一天日期。"+ formatDate(getFirstDateOfMonth(date)));System.out.println(strDate + " 當月最後一天日期。"+ formatDate(getLastDateOfMonth(date)));System.out.println(strDate + " 當月天數。" + getDayOfMonth(date));System.out.println(strDate + " 當月已過多少天。" + getPassDayOfMonth(date));System.out.println(strDate + " 當月剩餘多少天。" + getRemainDayOfMonth(date));System.out.println(strDate + " 所在季度第一天日期。"+ formatDate(getFirstDateOfSeason(date)));System.out.println(strDate + " 所在季度最後一天日期。"+ formatDate(getLastDateOfSeason(date)));System.out.println(strDate + " 所在季度天數。" + getDayOfSeason(date));System.out.println(strDate + " 所在季度已過多少天。" + getPassDayOfSeason(date));System.out.println(strDate + " 所在季度剩餘多少天。" + getRemainDayOfSeason(date));System.out.println(strDate + " 是第幾季度。" + getSeason(date));System.out.println(strDate + " 所在季度月份。"+ formatDate(getSeasonDate(date)[0], "yyyy年MM月") + "/"+ formatDate(getSeasonDate(date)[1], "yyyy年MM月") + "/"+ formatDate(getSeasonDate(date)[2], "yyyy年MM月"));}}