DateUtils

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;


public class DateUtils {
   public static String[] timeFormat(long ms) {// 将毫秒数换算成x分x秒x毫秒
      String[] times = new String[2];
      int ss = 1000;
      int mi = ss * 60;
      long minute = (ms) / mi;
      long second = (ms - (minute * mi)) / ss;
      String strMinute = minute < 10 ? "0" + minute : "" + minute;
      String strSecond = second < 10 ? "0" + second : "" + second;
      times[0] = strMinute;
      times[1] = strSecond;
      return times;
   }

   /**
    * Java 毫秒转换为（天：时：分：秒）方法
    * 
    * @param ms
    *            毫秒
    * @return 一个装了天 时 分 秒的数组
    */
   public static String[] timeFormatMore(long ms) {// 将毫秒数换算成x天x时x分x秒x毫秒
      String[] times = new String[4];
      int ss = 1000;
      int mi = ss * 60;
      int hh = mi * 60;
      int dd = hh * 24;
      long day = ms / dd;
      long hour = (ms - day * dd) / hh;
      long minute = (ms - day * dd - hour * hh) / mi;
      long second = (ms - day * dd - hour * hh - minute * mi) / ss;
      String strDay = day < 10 ? "0" + day : "" + day;
      String strHour = hour < 10 ? "0" + hour : "" + hour;
      String strMinute = minute < 10 ? "0" + minute : "" + minute;
      String strSecond = second < 10 ? "0" + second : "" + second;
      times[0] = strDay;
      times[1] = strHour;
      times[2] = strMinute;
      times[3] = strSecond;
      return times;
   }

   /**
    * 获取当前时间
    * 
    * @param formatType
    *            yyyy-MM-dd HH:mm:ss
    * @return
    */
   public static String getCurTime(String formatType) {
      Calendar calendar = new GregorianCalendar();
      Date date = calendar.getTime();
      SimpleDateFormat format = new SimpleDateFormat(formatType);
      // SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss");
      return format.format(date);
   }

   /**
    * @param time
    * @param formatType
    *            yyyy/MM/dd
    * @return
    */
   public static String formatTime(Long time, String formatType) {
      String format;
      try {
         SimpleDateFormat formater = new SimpleDateFormat(formatType);
         format = formater.format(new Date(time));
         return format;
      } catch (Exception e) {
         e.printStackTrace();
         return null;
      }
   }

   /**
    * 获取当前时间+/-addDate天
    * 
    * @param addDate
    * @param formatType
    * @return
    */
   public static String getCurTimeAddND(int addDate, String formatType) {
      Calendar cal = new GregorianCalendar();
      cal.add(Calendar.DATE, addDate);
      Date date = cal.getTime();
      SimpleDateFormat format = new SimpleDateFormat(formatType);
      return format.format(date);
   }

   /**
    * 获取当前时间+/-hour
    * 
    * @param hour
    * @param formatType
    * @return
    */
   public static String getCurTimeAddH(int hour, String formatType) {
      Calendar cal = new GregorianCalendar();
      cal.add(Calendar.HOUR_OF_DAY, hour);
      Date date = cal.getTime();
      SimpleDateFormat format = new SimpleDateFormat(formatType);
      return format.format(date);
   }

   /**
    * 获取当前时间前30分钟
    * 
    * @return
    */
   public static String getCurTimeAdd30M() {
      Calendar cal = new GregorianCalendar();
      cal.add(Calendar.MINUTE, 30);
      Date date = cal.getTime();
      SimpleDateFormat format = new SimpleDateFormat("HHmm");
      return format.format(date);
   }

   /**
    * 获取当前时间前+20分钟
    * 
    * @return
    */
   public static String getCurTimeAdd20M() {
      Calendar cal = new GregorianCalendar();
      cal.add(Calendar.MINUTE, 20);
      Date date = cal.getTime();
      SimpleDateFormat format = new SimpleDateFormat("HHmm");
      return format.format(date);
   }

   /**
    * 获取当前时间前+40分钟
    * 
    * @return
    */
   public static String getCurTimeAdd40M() {
      Calendar cal = new GregorianCalendar();
      cal.add(Calendar.MINUTE, 40);
      Date date = cal.getTime();
      SimpleDateFormat format = new SimpleDateFormat("HHmm");
      return format.format(date);
   }

   /**
    * 
    * @param datestr
    *            2009-01-12 09:12:22
    * @return 星期几
    */
   public static String getweekdayBystr(String datestr) {
      if ("".equals(datestr)) {
         return "";
      }
      int y = Integer.valueOf(datestr.substring(0, 4));
      int m = Integer.valueOf(datestr.substring(5, 7)) - 1;
      int d = Integer.valueOf(datestr.substring(8, 10));

      Calendar cal = Calendar.getInstance();
      cal.set(y, m, d);
      int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK) - 1;// 今天是星期几
      String wstr = null;
      switch (dayOfWeek) {
      case 1:
         wstr = "一";
         break;
      case 2:
         wstr = "二";
         break;
      case 3:
         wstr = "三";
         break;
      case 4:
         wstr = "四";
         break;
      case 5:
         wstr = "五";
         break;
      case 6:
         wstr = "六";
         break;
      case 0:
         wstr = "日";
         break;
      default:
         wstr = "";
         break;
      }
      return "星期" + wstr;
   }

   public static String getweekdayBystrNew(String datestr) {
      if ("".equals(datestr)) {
         return "";
      }
      int y = Integer.valueOf(datestr.substring(0, 4));
      int m = Integer.valueOf(datestr.substring(5, 7)) - 1;
      int d = Integer.valueOf(datestr.substring(8, 10));

      Calendar cal = Calendar.getInstance();
      cal.set(y, m, d);
      int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK) - 1;// 今天是星期几
      String wstr = null;
      switch (dayOfWeek) {
      case 1:
         wstr = "一";
         break;
      case 2:
         wstr = "二";
         break;
      case 3:
         wstr = "三";
         break;
      case 4:
         wstr = "四";
         break;
      case 5:
         wstr = "五";
         break;
      case 6:
         wstr = "六";
         break;
      case 0:
         wstr = "日";
         break;
      default:
         wstr = "";
         break;
      }
      return "周" + wstr;
   }

   /**
    * 今天的序号
    * 
    * @return
    */
   public static int getDayofWeekIndex() {
      Calendar cal = Calendar.getInstance();
      cal.setTime(new Date());
      int dayOfWeekIndex = cal.get(Calendar.DAY_OF_WEEK) - 1;// 今天是星期几
      return dayOfWeekIndex;
   }

   /**
    * 获取时间串
    * 
    * @param longstr
    *            秒
    * @return 1月前 1周前 1天前 1小时前 1分钟前
    */
   public static String getTimeStrByLong(String longstr) {

      Calendar calendar = new GregorianCalendar();
      Date date = calendar.getTime();
      Long clv = date.getTime();
      Long olv = Long.valueOf(longstr);

      calendar.setTimeInMillis(olv * 1000); // 转毫秒
      Date date2 = calendar.getTime();

      SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
      String curtime = format.format(date2);

      Long belv = clv - olv * 1000;
      String retStr = "";
      // 24 * 60 * 60 * 1000;
      Long daylong = Long.valueOf("86400000");
      Long hourlong = Long.valueOf("3600000");
      Long minlong = Long.valueOf("60000");

      if (belv >= daylong * 30) {// 月

         Long mul = belv / (daylong * 30);
         retStr = retStr + mul + "月";
         belv = belv % (daylong * 30);
         return retStr + "前";
      }
      if (belv >= daylong * 7) {// 周

         Long mul = belv / (daylong * 7);
         retStr = retStr + mul + "周";
         belv = belv % (daylong * 7);
         return retStr + "前";
      }
      if (belv >= daylong) {// 天

         Long mul = belv / daylong;
         retStr = retStr + mul + "天";
         belv = belv % daylong;
         return retStr + "前";
      }
      if (belv >= hourlong) {// 时
         Long mul = belv / hourlong;
         retStr = retStr + mul + "小时";
         belv = belv % hourlong;
         return retStr + "前";
      }
      if (belv >= minlong) {// 分
         Long mul = belv / minlong;
         retStr = retStr + mul + "分钟";
         return retStr + "前";
      }
      return "";
   }

   /**
    * 今天明天后天
    * 
    * @param todaystr
    * @return
    */
   public static String getTodayZh(String todaystr) {
      Calendar calendar = new GregorianCalendar();
      Date date = calendar.getTime();
      SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
      String today = format.format(date);
      if (today.equals(todaystr))
         return "今天";

      calendar = new GregorianCalendar();
      calendar.add(Calendar.DATE, 1);
      date = calendar.getTime();
      format = new SimpleDateFormat("yyyy-MM-dd");
      String tomorrow = format.format(date);
      if (tomorrow.equals(todaystr))
         return "明天";

      calendar = new GregorianCalendar();
      calendar.add(Calendar.DATE, 2);
      date = calendar.getTime();
      format = new SimpleDateFormat("yyyy-MM-dd");
      String aftertomo = format.format(date);
      if (aftertomo.equals(todaystr))
         return "后天";
      return "";
   }

   /**
    * 判断时间是否过期
    * 
    * @param deadLine
    * @return
    */
   public static boolean isDeadLine(String deadLine) {
      try {
         long currentTimeMillis = System.currentTimeMillis();
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
         Date date = sdf.parse(deadLine);
         long anotherTimeMillis = date.getTime();
         if ((currentTimeMillis - anotherTimeMillis) > 0) {// 大于
            return true;
         } else {
            return false;
         }
      } catch (ParseException e) {
         e.printStackTrace();
         return false;
      }
   }

   /**
    * 是否是今天
    * 
    * @param timeStr
    * @param pattern
    * @return
    */
   public static boolean isToday(String timeStr, String pattern) {
      try {
         SimpleDateFormat formater = new SimpleDateFormat(pattern);
         Date date1 = formater.parse(timeStr);
         Date date = new Date();
         String otherStr = formater.format(date1);
         String curtimeStr = formater.format(date);
         if (otherStr.equals(curtimeStr)) {
            return true;
         }
         return false;
      } catch (ParseException e) {
         e.printStackTrace();
         return false;
      }
   }

   /**
    * 日期格式化转换
    * 
    * @param oldDateStr
    * @param oldPattern
    * @param newPattern
    * @return
    */
   public static String changeFormater(String oldDateStr, String oldPattern, String newPattern) {
      if ("".equals(oldDateStr)) {
         return "";
      }
      try {
         SimpleDateFormat oldFormater = new SimpleDateFormat(oldPattern);
         SimpleDateFormat newFormater = new SimpleDateFormat(newPattern);
         Date date = oldFormater.parse(oldDateStr);
         return newFormater.format(date);
      } catch (ParseException e) {
         e.printStackTrace();
         return "";
      }
   }

   /**
    * @return {week=周三, date=2月25日}
    */
   public static List<WeekDateObj> getWeekDateList() {
      List<WeekDateObj> result = new ArrayList<WeekDateObj>();
      Calendar cal = Calendar.getInstance();
      cal.setTime(new Date());
      int curDayOfWeek = cal.get(Calendar.DAY_OF_WEEK) - 1;
      System.out.println(curDayOfWeek);
      for (int i = curDayOfWeek; i < curDayOfWeek + 7; i++) {
         int temp = i % 7;
         int step = 0;
         if (i != curDayOfWeek) {
            step = 1;
         }
         cal.add(Calendar.DAY_OF_MONTH, step);
         String wstr = null;
         switch (temp) {
         case 0:
            wstr = "日";
            break;
         case 1:
            wstr = "一";
            break;
         case 2:
            wstr = "二";
            break;
         case 3:
            wstr = "三";
            break;
         case 4:
            wstr = "四";
            break;
         case 5:
            wstr = "五";
            break;
         case 6:
            wstr = "六";
            break;

         default:
            wstr = "";
            break;
         }
         SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
         String format = dateFormat.format(cal.getTime());
         WeekDateObj seatGalleryObj = new WeekDateObj("周" + wstr, format);
         result.add(seatGalleryObj);
      }
      return result;
   }

   /**
    * 一个星期后的7天
    * @return
    */
   public static String getNextWeekDayStrNew() {
      StringBuffer sb = new StringBuffer();
      Calendar cal = Calendar.getInstance();
      cal.setTime(new Date());
      cal.add(Calendar.DAY_OF_MONTH, 7);
      int day = cal.get(Calendar.DAY_OF_MONTH);
      sb.append(day + "日");
      sb.append("-");
      cal.add(Calendar.DAY_OF_MONTH, 6);
      day = cal.get(Calendar.DAY_OF_MONTH);
      sb.append(day + "日");
      return sb.toString();
   }

   public static String getCurWeekDayStrNew() {
      StringBuffer sb = new StringBuffer();
      Calendar cal = Calendar.getInstance();
      cal.setTime(new Date());
      int day = cal.get(Calendar.DAY_OF_MONTH);
      sb.append(day + "日");
      sb.append("-");
      cal.add(Calendar.DAY_OF_MONTH, 6);
      day = cal.get(Calendar.DAY_OF_MONTH);
      sb.append(day + "日");
      return sb.toString();
   }

   /**
    * 多少时间之前
    * 
    * @param time
    *            "operatorTime":"2014-02-18 16:39:37"
    * @return
    */
   public static String diffCurTime(String time, String curTime) {
      try {
         SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         Date date2 = df.parse(curTime);
         Date date1 = df.parse(time);
         long l = date2.getTime() - date1.getTime();
         long day = l / (24 * 60 * 60 * 1000);
         long hour = (l / (60 * 60 * 1000) - day * 24);
         long min = ((l / (60 * 1000)) - day * 24 * 60 - hour * 60);
         long s = (l / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
         StringBuffer sBuffer = new StringBuffer();
         if (day > 0) {
            sBuffer.append(day + "天");
         }
         if (hour > 0) {
            sBuffer.append(hour + "小时");
         }
         if (min > 0) {
            sBuffer.append(min + "分");
         }
         if (s > 0) {
            sBuffer.append(s + "秒");
         }
         return sBuffer.toString();
      } catch (ParseException e) {
         e.printStackTrace();
      }
      return "";
   }
}

---

public class WeekDateObj {
   private String week;
   private String date;

   public String getWeek() {
      return week;
   }

   public void setWeek(String week) {
      this.week = week;
   }

   public String getDate() {
      return date;
   }

   public void setDate(String date) {
      this.date = date;
   }

   public WeekDateObj(String week, String date) {
      super();
      this.week = week;
      this.date = date;
   }

   @Override
   public String toString() {
      return "SelectSeatGalleryObj [week=" + week + ", date=" + date + "]";
   }

}