package com.ruoyi.order.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

/**
 * <h3>处理时间的工具类</h3>
 */
public class DateUtil {

	private static TimeZone tz = TimeZone.getTimeZone("GMT+8");

	//private static TimeZone tz = TimeZone.getTimeZone("Asia/Shanghai");


	/**
	 * 得到系统日期
	 * @return
	 */
	public static Date getDate() { 
		TimeZone.setDefault(tz);
		return new Date();
	}
	
	/**
     * 获取当然凌晨的时间
     * @return Date
     */
	public static Date getZero() {
		 Calendar calendar = Calendar.getInstance();
         calendar.setTime(new Date());
         calendar.set(Calendar.HOUR_OF_DAY, 0);
         calendar.set(Calendar.MINUTE, 0);
         calendar.set(Calendar.SECOND, 0);
         return calendar.getTime();
	}

	/**
     * 判断日期是否在from，to之内
     *"yyyy-MM-dd" 格式
     * @param time 指定日期 
     * @param from 开始日期
     * @param to   结束日期
     * @return true 在之间  false 不在之间
     */
    public static boolean belongCalendar(Date time, Date from, Date to) {
        Calendar date = Calendar.getInstance();
        date.setTime(time);

        Calendar after = Calendar.getInstance();
        after.setTime(from);

        Calendar before = Calendar.getInstance();
        before.setTime(to);

        if ( (date.after(after) && date.before(before)) || (time.compareTo(from)==0 || time.compareTo(to)==0) ) {
            return true;
        } else {
            return false;
        }
    }

	/**
	 * 两个时间之差
	 * @param startTime 
	 * @param endTime 
	 * @param format
	 * @return
	 * @throws ParseException 
	 */
	public static String dateDiff(String startTime, String endTime,
			String format) throws ParseException {
		// 按照传入的格式生成一个simpledateformate对象
		SimpleDateFormat sd = new SimpleDateFormat(format);
		long nd = 1000 * 24 * 60 * 60;// 一天的毫秒数
		long nh = 1000 * 60 * 60;// 一小时的毫秒数
		long nm = 1000 * 60;// 一分钟的毫秒数
		long ns = 1000;// 一秒钟的毫秒数
		long diff;
		long day = 0;
		long hour = 0;
		long min = 0;
		long sec = 0;
		//long time=0;
		String strTime="";
		// 获得两个时间的毫秒时间差异
		diff = sd.parse(endTime).getTime() - sd.parse(startTime).getTime();
		day = diff / nd;// 计算差多少天
		hour = diff % nd / nh + day * 24;// 计算差多少小时
		min = diff % nd % nh / nm + day * 24 * 60;// 计算差多少分钟
		sec = diff % nd % nh % nm / ns;// 计算差多少秒
		// 输出结果
		/*System.out.println("时间相差：" + day + "天" + (hour - day * 24) + "小时"
				+ (min - day * 24 * 60) + "分钟" + sec + "秒。");
		System.out.println("hour=" + hour + ",min=" + min);*/
		if(day==1){
			strTime="昨天";
		}
		else if(day>1){
			//strTime=day+"天前";
			strTime=startTime.substring(0, 10);
		}
		else if(hour>=1 && hour<24){
			strTime=hour+"小时前";
		}
		else{
			if(min==0){strTime=sec+"秒钟前";}else{
				strTime=min+"分钟前";
			}

		}
		// if (str.equalsIgnoreCase("h")) {
		// return hour;
		// } else {
		// return min;
		// }

		// if (str.equalsIgnoreCase("h")) {
		// return hour;
		// } else {
		// return min;
		// }
		return strTime;
	} 

	/**
	 * 得到系统Calendar日期
	 * @return
	 */
	public static Calendar getCalendar() {
		TimeZone.setDefault(tz);
		Calendar cal = Calendar.getInstance();
		return cal;
	}

	/**
	 * 获取当前时间
	 * @return
	 */
	public static long getMillisecond() {
		long millisecond = 0;
		TimeZone.setDefault(tz);
		Calendar cal = Calendar.getInstance();
		millisecond = cal.getTimeInMillis();
		return millisecond;
	}

	/**
	 * 获取本月1号的时间戳
	 * @return
	 */
	public static long getMillisecond_MONTH() {
		long millisecond = 0;
		TimeZone.setDefault(tz);
		Calendar cal = Calendar.getInstance();
		cal.set(Calendar.DAY_OF_MONTH, 1);
		millisecond = cal.getTimeInMillis();
		return millisecond;
	}

	/**
	 * 获取上个月1号的时间戳
	 * @return
	 */
	public static long getMillisecond_FRONTMONTH() {
		long millisecond = 0;
		Calendar cal = getCalendar();
		cal.set(Calendar.DAY_OF_MONTH, 1);
		cal.set(Calendar.MONTH, Calendar.MONTH-2);
		millisecond = cal.getTimeInMillis();
		return millisecond;
	}

	/**
	 * 获取当前毫秒数
	 * @return long
	 */
	public static long getCurMilli() { 
		long millisecond = 0;
		Calendar cal = Calendar.getInstance();
		millisecond = cal.getTimeInMillis();
		return millisecond;
	}


	/**
	 * 日期转毫秒
	 * @param date
	 * @return
	 */
	public static long getMillisecond(Date date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String newDate = "";
		if (!"".equals(date)) {
			newDate = sdf.format(date);
		} else {
			newDate = sdf.format(DateUtil.getDate());
		}
		long millisecond = 0;
		try {
			millisecond = sdf.parse(newDate).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return millisecond;
	}


	/**
	 * 日期转毫秒（加24小时,yyyy-MM-dd HH:mm:ss）
	 * @param date
	 * @return
	 */
	public static long getMillisecond_24h(Date date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String newDate = "";
		if (!"".equals(date)) {
			newDate = sdf.format(date);
		} else {
			newDate = sdf.format(DateUtil.getDate());
		}
		long millisecond = 24*3600*1000;
		try {
			millisecond += sdf.parse(newDate).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return millisecond;
	}

	/**
	 * 日期转毫秒（加N年）
	 * @param date
	 * @return
	 */
	public static long getMillisecond_year(String date, Integer year){
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String newDate = "";
		if ("".equals(date)) {
			newDate = sdf.format(DateUtil.getDate());
		} else {
			newDate = getDateTime(Long.parseLong(date));
		}
		Date dt = null;
		try {
			dt = sdf.parse(newDate);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		Calendar rightNow = Calendar.getInstance();
		rightNow.setTime(dt);
		rightNow.add(Calendar.YEAR, year);
		Date dt1 = rightNow.getTime();
		return dt1.getTime();
	}

	/**
	 * 日期转毫秒（加N天）
	 * @param date 毫秒字符串
	 * @return
	 */
	public static long getMillisecond_day(String date, Integer day){
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String newDate = "";
		if ("".equals(date)) {
			newDate = sdf.format(DateUtil.getDate());
		} else {
			newDate = getDateTime(Long.parseLong(date));
		}
		Date dt = null;
		try {
			dt = sdf.parse(newDate);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		Calendar rightNow = Calendar.getInstance();
		rightNow.setTime(dt);
		rightNow.add(Calendar.DATE, day);
		Date dt1 = rightNow.getTime();
		return dt1.getTime();
	}

	/**
	 * 日期转毫秒（加N月）
	 * @param date
	 * @return
	 */
	public static long getMillisecond_month(String date, Integer day){
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String newDate = "";
		if ("".equals(date)) {
			newDate = sdf.format(DateUtil.getDate());
		} else {
			newDate = getDateTime(Long.parseLong(date));
		}
		Date dt = null;
		try {
			dt = sdf.parse(newDate);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		Calendar rightNow = Calendar.getInstance();
		rightNow.setTime(dt);
		rightNow.add(Calendar.MONTH, day);
		Date dt1 = rightNow.getTime();
		return dt1.getTime();
	}

	/**
	 * 字符串日期转毫秒
	 * @param date
	 * @return
	 */
	public static long getMillisecond_str(String date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		if ("".equals(date)) {
			date = sdf.format(DateUtil.getDate());
		} 
		long millisecond = 0;
		try {
			millisecond = sdf.parse(date).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return millisecond;
	}

	/**
	 * 字符串日期转毫秒
	 * @param date
	 * @return
	 */
	public static long getMillisecond_strYmd(String date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		if ("".equals(date)) {
			date = sdf.format(DateUtil.getDate());
		} 
		long millisecond = 0;
		try {
			millisecond = sdf.parse(date).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return millisecond;
	}

	/**
	 * 字符串日期转Date
	 * @param string
	 * @return date
	 * @throws ParseException 
	 */
	public static Date getStrToDate(String dateString) throws ParseException { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");  
		Date date = sdf.parse(dateString);
		return date;
	}

	/**
	 * 字符串日期转Date
	 * @param date
	 * @return
	 */
	public static Date getDate_str(String dateStr) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		sdf.setTimeZone(tz);
		if ("".equals(dateStr)) {
			dateStr = sdf.format(DateUtil.getDate());
		} 
		Date date = null;
		try {
			date = sdf.parse(dateStr);
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return date;
	}

	/**
	 * 字符串日期转Date yyyy-MM-dd HH:mm
	 * @param date
	 * @return
	 */
	public static Date getDate_str2(String dateStr) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
		sdf.setTimeZone(tz);
		if ("".equals(dateStr)) {
			dateStr = sdf.format(DateUtil.getDate());
		} 
		Date date = null;
		try {
			date = sdf.parse(dateStr);
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return date;
	}
	
	/**
	 * 字符串日期转Date yyyy-MM-dd HH:mm:ss
	 * @param date
	 * @return
	 */
	public static Date getDate_str3(String dateStr) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		sdf.setTimeZone(tz);
		if ("".equals(dateStr)) {
			dateStr = sdf.format(DateUtil.getDate());
		} 
		Date date = null;
		try {
			date = sdf.parse(dateStr);
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return date;
	}

	/**
	 * 字符串日期转Date
	 * @param date
	 * @return
	 */
	public static Date getDate_strYMd(Long dateStr) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		if (dateStr == null) {
			dateStr = DateUtil.getCurMilli();
		} 
		Date date = null;
		try {
			date = sdf.parse(sdf.format(new Date(dateStr)));
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return date;
	}

	/**
	 * 毫秒转Date
	 * @param date
	 * @return
	 */
	public static Date getDate_strYMdHms(Long dateStr) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		if (dateStr == null) {
			dateStr = DateUtil.getCurMilli();
		} 
		Date date = null;
		try {
			date = sdf.parse(sdf.format(new Date(dateStr)));
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return date;
	}

	/**
	 * 字符串日期转Date
	 * @param date
	 * @return
	 */
	public static Date getDate_strYMdHm(Long dateStr) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
		if (dateStr == null) {
			dateStr = DateUtil.getCurMilli();
		} 
		Date date = null;
		try {
			date = sdf.parse(sdf.format(new Date(dateStr)));
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return date;
	}

	/**
	 * 字符串日期转毫秒
	 * @param date
	 * @return
	 */
	public static long getMillisecond_strDmy(String date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
		if ("".equals(date)) {
			date = sdf.format(DateUtil.getDate());
		} 
		long millisecond = 0;
		try {
			millisecond = sdf.parse(date).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return millisecond;
	}

	/**
	 * 字符串日期转毫秒转毫秒（加24小时）
	 * @param date
	 * @return
	 */
	public static long getMillisecond_str_24h(String date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		if ("".equals(date)) {
			date = sdf.format(DateUtil.getDate());
		} 
		long millisecond = 24*3600*1000;
		try {
			millisecond += sdf.parse(date).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return millisecond;
	}

	/**
	 * 字符串日期转毫秒转毫秒（加24小时）
	 * @param date
	 * @return
	 */
	public static long getMillisecond_strYmd_24h(String date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		if ("".equals(date)) {
			date = sdf.format(DateUtil.getDate());
		} 
		long millisecond = 24*3600*1000;
		try {
			millisecond += sdf.parse(date).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return millisecond;
	}

	/**
	 * 毫秒转日期
	 * @param millisecond
	 * @return
	 */
	public static String getDate(long millisecond) { 
		if (millisecond == 0) {
			millisecond = getCurMilli();
		}
		SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd");
		Calendar calendar = getCalendar();
		calendar.setTimeInMillis(millisecond);
		return dateformat.format(calendar.getTime());
	}
	/**
	 * 转换为指定格式的时间
	 * @return Date
	 */
	public static Date getDate(String date, String pattern)  {
		SimpleDateFormat format = new SimpleDateFormat(pattern);
		Date d = null;
		try {
			d = format.parse(date);
		} catch (ParseException ex) {
			return null;
		}
		return d;
	}

	/**
	 * 毫秒转日期
	 * @param millisecond
	 * @return
	 */
	public static String getDate_HH(long millisecond) { 
		if (millisecond == 0) {
			millisecond = getCurMilli();
		}
		SimpleDateFormat dateformat = new SimpleDateFormat("HH");
		Calendar calendar = getCalendar();
		calendar.setTimeInMillis(millisecond);
		return dateformat.format(calendar.getTime());
	}

	/**
	 * 毫秒转日期时间
	 * @param millisecond
	 * @return
	 */
	public static String getDateTime(long millisecond) { 
		if (millisecond == 0) {
			millisecond = getCurMilli();
		}
		SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		Calendar calendar = getCalendar();
		calendar.setTimeInMillis(millisecond);
		return dateformat.format(calendar.getTime());
	}

	/**
	 * 毫秒转年月日
	 * @param millisecond
	 * @return
	 */
	public static String getDateYMD(long millisecond) { 
		if (millisecond == 0) {
			millisecond = getCurMilli();
		}
		SimpleDateFormat dateformat = new SimpleDateFormat("yyyy年MM月dd日");
		Calendar calendar = getCalendar();
		calendar.setTimeInMillis(millisecond);
		return dateformat.format(calendar.getTime());
	}

	/**
	 * 两日期相差毫秒
	 * @param startDate
	 * @param endDate
	 * @return
	 */
	public static long getMinusMillisecond(Date startDate, Date endDate) { 
		long startMillisecond = getMillisecond(startDate);
		long endMillisecond = getMillisecond(endDate);
		long minusMillisecond = endMillisecond-startMillisecond;
		if (minusMillisecond < 0) {
			minusMillisecond = 0;
		}
		return minusMillisecond;
	}

	/**
	 * 两日期相差天数
	 * @param startDate
	 * @param endDate
	 * @return
	 */
	public static long getMinusDay(Date startDate, Date endDate) { 
		long startMillisecond = getMillisecond(startDate);
		long endMillisecond = getMillisecond(endDate);
		long minusMillisecond = endMillisecond-startMillisecond;
		long day = 0;
		if (minusMillisecond < 0) {
			day = 0;
		} else {
			day = minusMillisecond/(24*3600*1000); 
		}
		return day;
	}

	/**
	 * 前N天毫秒
	 * @param day
	 * @return
	 */
	public static long getRetreatDay_millisecond(int day) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		long nowMillisecond = 0; 
		try {
			nowMillisecond = sdf.parse(sdf.format(DateUtil.getDate())).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		}
		nowMillisecond += 24*3600*1000;
		long retreatMillisecond = 24*3600*1000*day;
		return nowMillisecond - retreatMillisecond;
	}
	
	
	/**
	 * 前N天时间
	 * @param day
	 * @return
	 */
	public static String getRetreatDay_millisecond1(int day) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		long nowMillisecond = 0; 
		try {
			nowMillisecond = sdf.parse(sdf.format(DateUtil.getDate())).getTime();
		} catch (ParseException e) {
			e.printStackTrace();
		}
		nowMillisecond += 24*3600*1000;
		long retreatMillisecond = 24*3600*1000*day;
		long s=nowMillisecond - retreatMillisecond;
		Date date = new Date(s);
		String res = sdf.format(date);
		return res;
	}

	/**
	 * 日期转秒
	 * @param date
	 * @return
	 */
	public static long getDecond(Date date) { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String newDate = "";
		if (!"".equals(date)) {
			newDate = sdf.format(date);
		} else {
			newDate = sdf.format(DateUtil.getDate());
		}
		long second = 0; 
		try {
			second = sdf.parse(newDate).getTime()/1000;
		} catch (ParseException e) {
			e.printStackTrace();
		} 
		return second;
	}

	/**
	 * 日期转String
	 * @param date
	 * @return
	 * @throws ParseException 
	 */
	public static String getDateToString(Date date) throws ParseException { 
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		String newDate = sdf.format(date);	
		long millisecond = sdf.parse(newDate).getTime(); 
		Calendar calendar = getCalendar();
		calendar.setTimeInMillis(millisecond);
		return sdf.format(calendar.getTime());
	}

	/**
	 * 毫秒转星期XX
	 * @param millisecond
	 * @return
	 */
	public static int getDate_week(Long millisecond) { 
		if (millisecond == null) {
			millisecond = getCurMilli();
		}
		Calendar cal = getCalendar();
		cal.setTimeInMillis(millisecond);
		return cal.get(Calendar.DAY_OF_WEEK)-1;

	}

	/**
	 * 获取当前系统时间已yyyy-MM-dd HH:mm:ss格式化的字符串
	 */
	public static String nowStr(){

		SimpleDateFormat dateFormat = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
		return dateFormat.format(getDate());
	}

	/**
	 * 
	 * 获取之前几天日期
	 * @param pattern yyyy-MM-dd（默认）
	 * @param few 之前几天
	 */
	public static String beforeFewDayStr(String pattern, Integer few) {

		if(pattern == null || "".equals(pattern)){
			pattern = "yyyy-MM-dd";
		}
		Calendar c = getCalendar();
		c.add(Calendar.DATE,-few);
		return new SimpleDateFormat(pattern).format(c.getTime());
	}

	/**
	 * 获取今天日期
	 * @param pattern yyyy-MM-dd（默认）
	 */
	public static String todayStr(String pattern) {

		if(pattern == null || "".equals(pattern)){
			pattern = "yyyy-MM-dd";
		}
		return new SimpleDateFormat(pattern).format(getDate());
	}

	/**
	 * 获取当前系统时间戳字符串
	 */
	public static String nowDateLongStr(){

		return getDate().getTime()+"";
	}

	/**
	 * 获取当前系统时间
	 * @return
	 */
	public static Date now(){

		return getDate();
	}


	public static void main(String[] args) throws ParseException {
        //打印测试日期包含
        Date time1  = getDate_str("2017-3-11");
        Date time2 = getDate_str("2017-3-15");
        Date time3 = getDate_str("2017-3-17");
        Date time4 = getDate_str("2017-3-12");
        Date time5 = getDate_str("2017-3-16");
        Date from = getDate_str("2017-3-12");
        Date to= getDate_str("2017-3-16");
        System.out.println(belongCalendar(time1,from,to));
        System.out.println(belongCalendar(time2,from,to));
        System.out.println(belongCalendar(time3,from,to));
        System.out.println(belongCalendar(time4,from,to));
        System.out.println(belongCalendar(time5,from,to));
        System.out.println(nowStr());
        

	}

	/**
	 *  把日期往后增加一天. 正数往后推,负数往前移动
	 * @param day
	 * @return
	 */
	public static String getString(int day) {
		Date date=new Date();//取时间
		Calendar calendar = new GregorianCalendar();
		calendar.setTime(date);
		calendar.add(calendar.DATE,day);//把日期往后增加一天.整数往后推,负数往前移动
		date=calendar.getTime(); //这个时间就是日期往后推一天的结果 
		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
		String dateString = formatter.format(date);
		return dateString;
	}



	
    /** 
    * 根据当前日期获得所在周的日期区间（周一和周日日期） 
    *  
    * @return 
    * @author zhaoxuepu 
    * @throws ParseException 
    */  
    public static String getTimeInterval(Date date) {
    	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
         Calendar cal = Calendar.getInstance();  
         cal.setTime(date);  
         // 判断要计算的日期是否是周日，如果是则减一天计算周六的，否则会出问题，计算到下一周去了  
         int dayWeek = cal.get(Calendar.DAY_OF_WEEK);// 获得当前日期是一个星期的第几天  
         if (1 == dayWeek) {  
            cal.add(Calendar.DAY_OF_MONTH, -1);  
         }  
         // System.out.println("要计算日期为:" + sdf.format(cal.getTime())); // 输出要计算日期  
         // 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一  
         cal.setFirstDayOfWeek(Calendar.MONDAY);  
         // 获得当前日期是一个星期的第几天  
         int day = cal.get(Calendar.DAY_OF_WEEK);  
         // 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值  
         cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);  
         String imptimeBegin = sdf.format(cal.getTime());  
         // System.out.println("所在周星期一的日期：" + imptimeBegin);  
         cal.add(Calendar.DATE, 6);  
         String imptimeEnd = sdf.format(cal.getTime());  
         // System.out.println("所在周星期日的日期：" + imptimeEnd);  
         return imptimeBegin + "," + imptimeEnd;  
    }  
      
      
    /** 
    * 根据当前日期获得上周的日期区间（上周周一和周日日期） 
    *  
    * @return 
    * @author zhaoxuepu 
    */  
    public static String getLastTimeInterval() {  
    	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
         Calendar calendar1 = Calendar.getInstance();  
         Calendar calendar2 = Calendar.getInstance();  
         int dayOfWeek = calendar1.get(Calendar.DAY_OF_WEEK) - 1;  
         int offset1 = 1 - dayOfWeek;  
         int offset2 = 7 - dayOfWeek;  
         calendar1.add(Calendar.DATE, offset1 - 7);  
         calendar2.add(Calendar.DATE, offset2 - 7);  
         // System.out.println(sdf.format(calendar1.getTime()));// last Monday  
         String lastBeginDate = sdf.format(calendar1.getTime());  
         // System.out.println(sdf.format(calendar2.getTime()));// last Sunday  
         String lastEndDate = sdf.format(calendar2.getTime());  
         return lastBeginDate + "," + lastEndDate;  
    }

	
    
    
    
    
    public static String DateYUE(){
    SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
    Calendar c = Calendar.getInstance();    
           c.add(Calendar.MONTH, 0);
           c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天 
           String first = format.format(c.getTime());
           
           //获取当前月最后一天
           Calendar ca = Calendar.getInstance();    
           ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));  
           String last = format.format(ca.getTime());
		   return first+","+last;
    }
    
    
    
    
    
   
  public static String  getBeforeFirstMonthdate(){
    SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
    Calendar calendar=Calendar.getInstance();
    Calendar calendar1=Calendar.getInstance();
    calendar.add(Calendar.MONTH, -1);
    calendar.set(Calendar.DAY_OF_MONTH, 1);
    
    int month=calendar1.get(Calendar.MONTH);
    calendar1.set(Calendar.MONTH, month-1);
    calendar1.set(Calendar.DAY_OF_MONTH, calendar1.getActualMaximum(Calendar.DAY_OF_MONTH));
    String str=format.format(calendar.getTime());
    String str1=format.format(calendar1.getTime());
    
	return str+","+str1;
    }
    
  
  /** 
   * 获取某年第一天和最后一天日期 
   * @param year 年份 
   * @return Date 
   */  
  
  public static String getYearFirst(int year){  
	  SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
      Calendar calendar = Calendar.getInstance();  
      calendar.clear();  
      calendar.set(Calendar.YEAR, year);  
      
      
      Calendar calendar1 = Calendar.getInstance();  
      calendar1.clear();  
      calendar1.set(Calendar.YEAR, year);  
      calendar1.roll(Calendar.DAY_OF_YEAR, -1);  
   
      
      String str=format.format(calendar.getTime());
      String str1=format.format(calendar1.getTime());
      
      
      return str+","+str1;  
  }  
    	
	

}