JAVA日期查询：季度、月份、星期等时间信息

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; // 中国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;
    }
 
    /**
     * 取得当天日期是周几
     * 
     * @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;
    }
 
    /**
     * 取得一年的第几周
     * 
     * @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);
    }
 
    /**
     * 根据日期取得对应周周一日期
     * 
     * @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();
    }
 
    /**
     * 根据日期取得对应周周日日期
     * 
     * @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();
    }
 
    /**
     * 取得月的剩余天数
     * 
     * @param date
     * @return
     */
    public static int getRemainDayOfMonth(Date date) {
        int dayOfMonth = getDayOfMonth(date);
        int day = getPassDayOfMonth(date);
        return dayOfMonth - day;
    }
 
    /**
     * 取得月已经过的天数
     * 
     * @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 getFirstDateOfSeason(Date date) {
        return getFirstDateOfMonth(getSeasonDate(date)[0]);
    }
 
    /**
     * 取得季度最后一天
     * 
     * @param date
     * @return
     */
    public static Date getLastDateOfSeason(Date date) {
        return getLastDateOfMonth(getSeasonDate(date)[2]);
    }
 
    /**
     * 取得季度天数
     * 
     * @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;
    }
 
    /**
     * 取得季度剩余天数
     * 
     * @param date
     * @return
     */
    public static int getRemainDayOfSeason(Date date) {
        return getDayOfSeason(date) - getPassDayOfSeason(date);
    }
 
    /**
     * 取得季度已过天数
     * 
     * @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) {// 季度第一个月
            day = getPassDayOfMonth(seasonDates[0]);
        } else if (month == Calendar.FEBRUARY || month == Calendar.MAY
                || month == Calendar.AUGUST || month == Calendar.NOVEMBER) {// 季度第二个月
            day = getDayOfMonth(seasonDates[0])
                    + getPassDayOfMonth(seasonDates[1]);
        } else if (month == Calendar.MARCH || month == Calendar.JUNE
                || month == Calendar.SEPTEMBER || month == Calendar.DECEMBER) {// 季度第三个月
            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 + " 今天是哪个月？" + getMonth(date));
        System.out.println(strDate + " 今天是几号？" + getDay(date));
        System.out.println(strDate + " 今天是周几？" + getWeekDay(date));
        System.out.println(strDate + " 是一年的第几周？" + getWeekOfYear(date));
        System.out.println(strDate + " 所在周起始结束日期？"
                + 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 + " 当月第一天日期？"
                + formatDate(getFirstDateOfMonth(date)));
        System.out.println(strDate + " 当月最后一天日期？"
                + formatDate(getLastDateOfMonth(date)));
        System.out.println(strDate + " 当月天数？" + getDayOfMonth(date));
        System.out.println(strDate + " 当月已过多少天？" + getPassDayOfMonth(date));
        System.out.println(strDate + " 当月剩余多少天？" + getRemainDayOfMonth(date));
 
        System.out.println(strDate + " 所在季度第一天日期？"
                + formatDate(getFirstDateOfSeason(date)));
        System.out.println(strDate + " 所在季度最后一天日期？"
                + formatDate(getLastDateOfSeason(date)));
        System.out.println(strDate + " 所在季度天数？" + getDayOfSeason(date));
        System.out.println(strDate + " 所在季度已过多少天？" + getPassDayOfSeason(date));
        System.out
                .println(strDate + " 所在季度剩余多少天？" + getRemainDayOfSeason(date));
        System.out.println(strDate + " 是第几季度？" + 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"));
    }
}