文章标题

package cn.analysys.userradar.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;

import cn.analysys.userradar.context.IndexDateType;

public class DateUtil {

private final static Logger log = Logger.getLogger(DateUtil.class);public final static String DATE_FORMATER = "yyyy-MM-dd";public final static String DATE_SECOND_FORMATER = "yyyy-MM-dd hh:mm:ss";public final static String DATE_FORMATER_YYYYMM = "yyyyMM";public final static String DATE_FORMATER_YYYYMMDD_ZH = "yyyy年MM月dd日";public final static String DATE_FORMATER_YYYYMM_ZH = "yyyy年MM月";public static Date convertStringDate(String dateStr,String pattern) {    Date date = null;    if (StringUtils.isBlank(dateStr))        return date;    try {        date = new SimpleDateFormat(pattern).parse(dateStr);        return date;    } catch (ParseException e) {        log.error("解析字符串[" + dateStr + "]到日期错误!", e);    }    return date;}public static Date convertStringDate(String dateStr) {    Date date = null;    if (StringUtils.isBlank(dateStr))        return date;    try {        date = new SimpleDateFormat("yyyy-MM-dd").parse(dateStr);        return date;    } catch (ParseException e) {        log.error("解析字符串[" + dateStr + "]到日期错误!", e);    }    return date;}public static String getDateStr(Date date, String formate) {    return new SimpleDateFormat(formate).format(date);}public static String getYear(Date date) {    if (date == null)        date = new Date();    Calendar cal = Calendar.getInstance();    cal.setTime(date);    return cal.get(Calendar.YEAR) + "";}public static String getMonth(Date date) {    if (date == null)        date = new Date();    Calendar cal = Calendar.getInstance();    cal.setTime(date);    String month = cal.get(Calendar.MONTH) + 1 + "";    if (month.length() < 2)        month = "0" + month;    return month;}public static String getWeek(Date date) {    Calendar cl = Calendar.getInstance();    cl.setTime(date);    int week = cl.get(Calendar.WEEK_OF_YEAR);    return week + "";}/** * 获取当前月的周数 * <p> * <p> * <P> * Author : xiongzhengsheng * </P> * <P> * Date : 2014-3-26 * </P> *  * @param key * @throw * @return */public static List<Integer> getCurrentMonthWeeks(String dateStr) {    List<Integer> weeks = new ArrayList<Integer>();    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");    try {        Date date = format.parse(dateStr);        return getCurrentMonthWeeks(date);    } catch (ParseException e) {        log.error("日期字符串[" + dateStr + "]转换日期对象错误!", e);    }    return weeks;}public static List<Integer> getCurrentMonthWeeks(Date date) {    List<Integer> weeks = new ArrayList<Integer>();    if (date == null)        return weeks;    Calendar cal = Calendar.getInstance();    cal.setTime(date);    Date endDate = getLastDayOfMonth(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH) + 1);    int startWeeks = Integer.parseInt(getWeek(date));    int endWeeks = Integer.parseInt(getWeek(endDate));    while (startWeeks <= endWeeks) {        weeks.add(startWeeks);        startWeeks++;    }    return weeks;}public static Date getLastDayOfMonth(int year, int month) {    Calendar cal = Calendar.getInstance();    // 设置年份    cal.set(Calendar.YEAR, year);    // 设置月份    cal.set(Calendar.MONTH, month - 1);    // 获取某月最大天数    int lastDay = cal.getActualMaximum(Calendar.DAY_OF_MONTH);    // 设置日历中月份的最大天数    cal.set(Calendar.DAY_OF_MONTH, lastDay);    return cal.getTime();}public static String getQuarter(Date date) {    if (date == null)        date = new Date();    Calendar cal = Calendar.getInstance();    cal.setTime(date);    int month = cal.get(Calendar.MONTH) + 1;    int quarter = 1;    if (month >= 1 && month <= 3) {        quarter = 1;    } else if (month >= 4 && month <= 6) {        quarter = 2;    } else if (month >= 7 && month <= 9) {        quarter = 3;    } else if (month >= 10 && month <= 12) {        quarter = 4;    }    return quarter + "";}public static String getDay(Date date) {    Calendar cal = Calendar.getInstance();    cal.setTime(new Date());    int monthMaxDay = cal.getActualMaximum(Calendar.DAY_OF_MONTH);    return "" + monthMaxDay;}// 日期月份加减public static Date getMinusMonthDate(Date date, int n) {    Calendar cl = Calendar.getInstance();    cl.setTime(date);    cl.add(Calendar.MONTH, n);    date = cl.getTime();    return date;}public static Date getMinusYearDate(Date date, int n) {    Calendar cl = Calendar.getInstance();    cl.setTime(date);    cl.add(Calendar.YEAR, n);    date = cl.getTime();    return date;}public static Date getMinusDayDate(Date date, int n) {    Calendar cl = Calendar.getInstance();    cl.setTime(date);    cl.add(Calendar.DATE, n);    date = cl.getTime();    return date;}public static boolean checkInvalidateTime(Date startTime, Date endTime) {    Date currentDate = new Date();    if (startTime.compareTo(currentDate) <= 0 && endTime.compareTo(currentDate) >= 0) {        return true;    }    return false;}/** * 获取当前所有的月份 * <p> * DateUtil.getMonths() * <p> * <P> * Author : xiongzhengsheng * </P> * <P> * Date : 2014-3-26 * </P> *  * @param endDate //结束日期 * @param type // 0:取所有年下包含的月数 1:取当前年下包含的月数 * @throw * @return */public static List<Date> getMonths(Date endDate, String type) {    List<Date> dates = new ArrayList<Date>();    if (StringUtils.isBlank(type) || !("0".equals(type) || "1".equals(type)))        type = "0";    int year = Integer.parseInt(getYear(endDate));    while (endDate.compareTo(new Date()) >= 0) {        dates.add(endDate);        endDate = getMinusMonthDate(endDate, -1);        if ("1".equals(type)) {            int currentYear = Integer.parseInt(getYear(endDate));            if (currentYear < year)                break;        }    }    return dates;}/** * 获取当前所有的年数 * <p> * DateUtil.getYears() * <p> * <P> * Author : xiongzhengsheng * </P> * <P> * Date : 2014-3-26 * </P> *  * @param endDate //结束日期 * @param type // 0:取所有年下包含的月数 1:取当前年下包含的月数 * @throw * @return */public static List<Date> getYears(Date endDate, String type) {    List<Date> dates = new ArrayList<Date>();    if (StringUtils.isBlank(type) || !("0".equals(type) || "1".equals(type)))        type = "0";    dates.add(endDate);    if ("0".equals(type)) {        int endYear = Integer.parseInt(getYear(endDate)) - 1;        int startYear = Integer.parseInt(getYear(new Date()));        while (endYear >= startYear) {            dates.add(convertStringDate(endYear + "-12-01"));            endYear = endYear - 1;        }    }    return dates;}/** * 获取table表格下日期时间列表 * <p> * DateUtil.getDateLists() * <p> * <P> * Author : xiongzhengsheng * </P> * <P> * Date : 2014-3-26 * </P> *  * @param dateType 按日 按周 按月 按季 * @param dateValue 当前传入的日期值 * @param flag 按年 按月状态判断 * @throw * @return */public static List<Date> getDateLists(String dateType, String dateValue, boolean flag) {    List<Date> dateLists = new ArrayList<Date>();    Date start = new Date();    Date end = convertStringDate(dateValue);    if (end == null)        end = new Date();    if (StringUtils.isBlank(dateType))        dateType = IndexDateType.MONTH;    switch (dateType) {// 加载当前下的记录数据    case "day":        if (flag)            start = convertStringDate(getYear(end) + "-" + getMonth(end) + "-" + "01");        while (end.compareTo(start) >= 0) {            dateLists.add(end);            end = getMinusMonthDate(end, -1);        }        break;    case "week":        if (flag)            start = convertStringDate(getYear(end) + "-" + getMonth(end) + "-" + "01");        while (end.compareTo(start) >= 0) {            dateLists.add(end);            end = getMinusMonthDate(end, -1);        }        break;    case "month":// 按月显示年    case "quarter":// 按季显示年        if (flag)            start = convertStringDate(getYear(end) + "-" + getMonth(end) + "-" + "01");        while (end.compareTo(start) >= 0) {            dateLists.add(end);            end = getMinusMonthDate(end, -1);        }        break;    default:        break;    }    return dateLists;}public static String getDateTitle(Date date, String dateType) {    String dateTitle = "";    switch (dateType) {    case "month":        dateTitle = getYear(date) + "年" + getMonth(date) + "月";        break;    case "quarter":        String val = getQuarter(date);        switch (val) {        case "1":            dateTitle = getYear(date) + "年第一季度";            break;        case "2":            dateTitle = getYear(date) + "年第二季度";            break;        case "3":            dateTitle = getYear(date) + "年第三季度";            break;        case "4":            dateTitle = getYear(date) + "年第四季度";            break;        }        break;    case "week":        dateTitle = getYear(date) + "年" + getWeek(date) + "周";        break;    default:        break;    }    return dateTitle;}public static Date getWeekFirstDay(int weekNum) {    Calendar cal = Calendar.getInstance();    cal.set(Calendar.WEEK_OF_YEAR, weekNum);    cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);    // 分别取得当前日期的年、月、日    return cal.getTime();}/** * 获取某年第一天日期 * @param year 年份 * @return Date */public static Date getYearFirst( int year){    Calendar calendar = Calendar.getInstance();    calendar.clear();    calendar.set(Calendar.YEAR, year);    Date currYearFirst = calendar.getTime();    return currYearFirst;}public static String getYearMonth(String date) {    int b=0;    String  year=date.substring(0,4);    String  count=date.substring(5,7);    b=Integer.valueOf(count);    return year+'年'+b+'月';}public static String getYearMonth(Date date) {    return getDateStr(date, DATE_FORMATER);}public static String getRoundNumber(String date) {    Double number=Math.round(Double.parseDouble(date) * 10) * 0.1d;    return number.toString();}public static String getRoundNumberPercent(String date) {    Double number=Math.round(Double.parseDouble(date) * 1000) * 0.1d;    return number.toString()+"%";}/** * 返回指定日期的月的最后一天 * * @param year * @param month * @return */public static Date getLastDayOfMonth(Date date) {    Calendar calendar = Calendar.getInstance();    calendar.setTime(date);    calendar.set(calendar.get(Calendar.YEAR),                 calendar.get(Calendar.MONTH), 1);    calendar.roll(Calendar.DATE, -1);    return calendar.getTime();}public static Date addYear(Date date, int yearNum) {    GregorianCalendar gc = new GregorianCalendar();    gc.setTime(date);    gc.add(GregorianCalendar.YEAR, yearNum);    return gc.getTime();}public static Date addWeek(Date date, int num) {    GregorianCalendar gc = new GregorianCalendar();    gc.setTime(date);    gc.add(GregorianCalendar.WEEK_OF_YEAR, num);    return gc.getTime();}public static Date addDay(Date date, int num) {    GregorianCalendar gc = new GregorianCalendar();    gc.setTime(date);    gc.add(GregorianCalendar.DAY_OF_YEAR, num);    return gc.getTime();}public static Date addMonth(Date date, int num) {    GregorianCalendar gc = new GregorianCalendar();    gc.setTime(date);    gc.add(GregorianCalendar.MONTH, num);    return gc.getTime();}public static String getCurrentYearMonth(String foramt){    SimpleDateFormat sdf = new SimpleDateFormat(foramt);    return sdf.format(new Date());}/** * 返回指定日期的月的最后一天 * * @param year * @param month * @return */public static int getLastDayNumOfMonth(Date date) {    Calendar calendar = Calendar.getInstance();    calendar.setTime(date);    calendar.set(calendar.get(Calendar.YEAR),                 calendar.get(Calendar.MONTH), 1);    calendar.roll(Calendar.DATE, -1);    return calendar.get(Calendar.DAY_OF_MONTH);}public static void main(String[] args) {

// Double date=Math.round(5.244555 * 10) * 0.1d;
// System.out.println(“===============date:”+date);
Date d = new Date();
String currentYearMonth = getCurrentYearMonth(“yyyy年MM月”);
System.out.println(currentYearMonth);
//System.out.println(getQuarter(d));
//System.out.println(getQuarter(addMonth(d, -3)));

    System.out.println(DateUtil.getLastDayNumOfMonth(new Date()));}public static  String getNewYearMonth(String date) {    SimpleDateFormat sdf = new SimpleDateFormat(DateUtil.DATE_FORMATER_YYYYMM_ZH);    SimpleDateFormat sdf1 = new SimpleDateFormat(DateUtil.DATE_FORMATER);    try {        date = sdf1.format(sdf.parse(date));    } catch (ParseException e) {        e.printStackTrace();    }    return date;}

}