DateUtils.java

時間 2019-11-18

標籤 dateutils.java dateutils java 欄目 Java 简体版

原文原文鏈接

/**
 * 獲取指定時間戳所在日期的零點時間戳
 * @param millis
 * @return
 */
public static long getDayZeroTimeInMillis(long millis){
	Calendar c = Calendar.getInstance();
	c.setTimeInMillis(millis);
	c.set(Calendar.HOUR_OF_DAY, 0);
	c.set(Calendar.MINUTE, 0);
	c.set(Calendar.SECOND, 0);
	c.set(Calendar.MILLISECOND, 0);
	return c.getTimeInMillis();
}
@Test
public void getDayZeroTimeInMillisTest() {
	System.out.println(System.currentTimeMillis());//1466388480064     當前系統時間
	System.out.println(getDayZeroTimeInMillis(System.currentTimeMillis()));//1466352000000  當天凌晨時間點
} 



/**
 * 返回n天后/前的日期時間戳[零點時間戳]
 * @param days
 * 能夠爲任何整數，負數表示前N天，正數表示後N天
 * @return TimeInMillis
 */
public static long getFutureInMillis(long current, int days) {
	current = current > 0 ? current : System.currentTimeMillis();
	Calendar c = Calendar.getInstance();
	c.setTimeInMillis(current);
	c.set(Calendar.DAY_OF_MONTH, c.get(Calendar.DAY_OF_MONTH) + days);
	c.set(Calendar.HOUR_OF_DAY, 0);
	c.set(Calendar.MINUTE, 0);
	c.set(Calendar.SECOND, 0);
	c.set(Calendar.MILLISECOND, 0);
	return c.getTimeInMillis();
}
@Test
public void testFutureInMillis() throws Exception {
	System.out.println(getFutureInMillis(System.currentTimeMillis(), -1));
}



/**
 * 將時間戳轉換爲格式化的字符串
 * 
 * @param format
 * @param millis
 * @return
 */
public static String getDateString(String format, long millis) {
	Date date = new Date(millis);
	if (isEmptyString(format))
		format = "yyyy-MM-dd HH:mm:ss";
	SimpleDateFormat dateFormat = new SimpleDateFormat(format);
	return dateFormat.format(date);

}
@Test
public void testGetDateString() {
	System.out.println(getDateString("yyyy-MM-dd HH:mm:ss", 1466388294000L));//2016-06-20 10:04:54
}

mysteeljava

package com.mysteel.mobile.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

import com.mysteel.mobile.entity.DesignOpRead;

public class DateUtil {

   //遍歷時間段中全部的日期
	
  public static List<Date> getAllDateInRange(Date startDate, Date endDate){
	  
	  List<Date> dateList = new ArrayList<Date>();
	  if (startDate.before(endDate)){
	    Long spi = endDate.getTime() - startDate.getTime();
	    Long step = spi / (24 * 60 * 60 * 1000);// 相隔天數

	    dateList.add(endDate);
	    for (int i = 1; i <= step; i++) {
	        dateList.add(new Date(dateList.get(i - 1).getTime()
	                - (24 * 60 * 60 * 1000)));// 比上一天減一
	    }
   }
	  return dateList;
  }

	public static List<String> getAllDateStrInRange(String startDate, String endDate, String dateType)
			throws Exception {
		Long oneDay = 1000 * 60 * 60 * 24l;
		List<String> resultList = new ArrayList<String>();
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd");
		SimpleDateFormat yearSdf = new SimpleDateFormat("yyyy");
		Date st = sdf.parse(startDate);
		Date et = sdf.parse(endDate);
		if (dateType.equals("week")) {
			long startTime = st.getTime();
			long endTime = et.getTime();
			while (startTime <= endTime + (7 * oneDay)) {
				Date date = new Date(startTime);
				DateTime jodaTime = new DateTime(date);
				int currWeek = jodaTime.getWeekOfWeekyear();
				if (currWeek < 10) {
					resultList.add(jodaTime.getYear() + "0" + currWeek + "");
				} else {
					resultList.add(jodaTime.getYear() + "" + currWeek + "");
				}
				startTime = jodaTime.plusWeeks(1).getMillis();
			}
		} else if (dateType.equals("month")) {
			long startTime = st.getTime();
			long endTime = et.getTime();
			int month = 0;
			while (startTime <= endTime) {
				Date date = new Date(startTime);
				DateTime jodaTime = new DateTime(date);
				// TODO
				int currMonth = jodaTime.getMonthOfYear();
				if (month != currMonth) {
					if ((currMonth + 1) <= 10) {
						resultList.add(jodaTime.getYear() + "0" + (currMonth));
					} else {
						resultList.add(jodaTime.getYear() + "" + (currMonth) + "");
					}
				}
				startTime = jodaTime.plusMonths(1).getMillis();
			}
		} else {
			long startTime = st.getTime();
			long endTime = et.getTime();
			while (startTime <= endTime) {
				Date d = new Date(startTime);
				//TODO YYYY-MM-DD 改 YYYYMMDD
				resultList.add(sdf2.format(d));
				startTime += oneDay;
			}
		}
		return resultList;
	}
	
	/**
	 * 把YYYYMMDD格式轉爲YYYY-MM-DD
	 * @return
	 * @throws ParseException 
	 */
	public static String covertDay(String date) throws ParseException{
		SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMdd");
		SimpleDateFormat sdf2=new SimpleDateFormat("yyyy-MM-dd");
		Date day=sdf.parse(date);
		return sdf2.format(day);
	}
  public static List<String> getAllDateWithoutHoliday(String startDate, String endDate,List<String> holidayList,String dateType)throws Exception{
	  /*List<String> resultList = new ArrayList<String>();
	  SimpleDateFormat sdf= new SimpleDateFormat("yyyyMMdd");
	  SimpleDateFormat sdf2= new SimpleDateFormat("yyyy-MM-dd");
	  Date st = sdf.parse(startDate);
	  Date et = sdf.parse(endDate);
	  Long oneDay = 1000 * 60 * 60 * 24l;
	  long startTime=st.getTime();
	  long endTime=et.getTime();
	  while(startTime<=endTime){
		  Date d = new Date(startTime);
		  String dateStr=sdf2.format(d);
		  if(!holidayList.contains(dateStr)){
			  resultList.add(dateStr);
		   }
		  startTime += oneDay; 
	  }
	  return resultList;*/
	  Long oneDay = 1000 * 60 * 60 * 24l;
		List<String> resultList = new ArrayList<String>();
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd");
		SimpleDateFormat yearSdf = new SimpleDateFormat("yyyy");
		Date st = sdf.parse(startDate);
		Date et = sdf.parse(endDate);
		if (dateType.equals("week")) {
			long startTime = st.getTime();
			long endTime = et.getTime();
			while (startTime <= endTime + (7 * oneDay)) {
				Date date = new Date(startTime);
				DateTime jodaTime = new DateTime(date);
				int currWeek = jodaTime.getWeekOfWeekyear();
				if (currWeek < 10) {
					resultList.add(jodaTime.getYear() + "0" + currWeek + "");
				} else {
					resultList.add(jodaTime.getYear() + "" + currWeek + "");
				}
				startTime = jodaTime.plusWeeks(1).getMillis();
			}
		} else if (dateType.equals("month")) {
			long startTime = st.getTime();
			long endTime = et.getTime();
			int month = 0;
			while (startTime <= endTime) {
				Date date = new Date(startTime);
				DateTime jodaTime = new DateTime(date);
				// TODO
				int currMonth = jodaTime.getMonthOfYear();
				if (month != currMonth) {
					if ((currMonth + 1) <= 10) {
						resultList.add(jodaTime.getYear() + "0" + (currMonth));
					} else {
						resultList.add(jodaTime.getYear() + "" + (currMonth) + "");
					}
				}
				startTime = jodaTime.plusMonths(1).getMillis();
			}
		} else {
			long startTime = st.getTime();
			long endTime = et.getTime();
			while (startTime <= endTime) {
				if(holidayList.contains(sdf.format(startTime))){
					startTime += oneDay;
					continue;
				}
				Date d = new Date(startTime);
				//TODO YYYY-MM-DD 改 YYYYMMDD
				resultList.add(sdf2.format(d));
				startTime += oneDay;
			}
		}
	  return resultList;
  }
  public static List<String> getAllHourInDay(){
	  List<String> resultList = new ArrayList<String>();
	  for(int i=0;i<24;i++){
		  if(i<10){
			  resultList.add("0"+i+":00");
		  }else{
			  resultList.add(i+":00");
		  }
	  }
	  return resultList;
  }
//新圖標X軸格式是這樣的00:00-01:00 偶數跳過 
  public static List<String> getNewAllHourInDay(){
	  List<String> resultList = new ArrayList<String>();
	  for(int i=0;i<24;i++){
		  String hour="";
			  //拼00:00-01:00
			  if(i+1!=10&&i<10){
				  hour="0"+i+":00-0"+(i+1)+":00";
			  }else if(i+1>=10){
				  hour=i+":00-"+(i+1)+":00";
			  }
		  resultList.add(hour);
		  
	  }
	  return resultList;
  } 
  
  public static boolean isHoliday(String dateStr)throws Exception{
	  SimpleDateFormat sdf= new SimpleDateFormat("yyyyMMdd");
	  Date date=sdf.parse(dateStr);
	  Calendar cal = Calendar.getInstance();
	  cal.setTime(date);
	  int day =  cal.get(Calendar.DAY_OF_WEEK)-1;
	  if(day==0||day==6){
		  return true;
	  }
	  return false;
  }
  public static List<String> getDataList()throws Exception{
      //請注意月份是從0-11
      Calendar start = Calendar.getInstance();
      start.set(2016,0, 1);
      Calendar end = Calendar.getInstance();
      end.set(2016, 11,30);
      
      int sumSunday = 0;
      int sumSat = 0;
      Set<String> dateSet = new TreeSet<String>();
      SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
      while(start.compareTo(end) <= 0) {
          int w = start.get(Calendar.DAY_OF_WEEK);
          if(w == Calendar.SUNDAY){
        	  sumSunday ++;
        	  dateSet.add(format.format(start.getTime()));
          }
          if(w == Calendar.SATURDAY){
        	  sumSat ++;
        	  dateSet.add(format.format(start.getTime()));
          }
          //打印天天
          //System.out.println(format.format(start.getTime()));
        
          //循環，每次天數加1
          start.set(Calendar.DATE, start.get(Calendar.DATE) + 1);
      }
      dateSet.add("20160101");
      dateSet.add("20160207");
      dateSet.add("20160208");
      dateSet.add("20160209");
      dateSet.add("20160210");
      dateSet.add("20160211");
      dateSet.add("20160212");
      dateSet.add("20160213");
      dateSet.add("20160404");
      dateSet.add("20160501");
      dateSet.add("20160502");
      dateSet.add("20160609");
      dateSet.add("20160610");
      dateSet.add("20160611");
      dateSet.add("20160915");
      dateSet.add("20160916");
      dateSet.add("20160917");
      dateSet.add("20161001");
      dateSet.add("20161002");
      dateSet.add("20161003");
      dateSet.add("20161004");
      dateSet.add("20161005");
      dateSet.add("20161006");
      dateSet.add("20161007");
      List<String> result = new ArrayList<String>(dateSet);
      return result;
  }
  
  //
  public static List<String> getWeekRange(List<String> rangeList){
	  List<String> weeks=new ArrayList<String>();
	  for(String weekDay:rangeList){
		  weeks.add(convertWeekToDate(weekDay));
	  }
	  return weeks;
  }
  
  public static String convertMonth(String month) throws ParseException{
	  SimpleDateFormat sdf=new SimpleDateFormat("yyyyMM");
	  Date currMonth=sdf.parse(month);
	   SimpleDateFormat monthSdf=new SimpleDateFormat("yyyy/MM");
	   return monthSdf.format(currMonth);
  }
  
  //傳入開始和結束日期，獲得一組月集合 格式爲yyyy/MM 
  public static List<String>  getMonthRange(String startDate,String endDate){
	  List<String> monthList=new ArrayList<String>();
	    SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMdd");
	    SimpleDateFormat month=new SimpleDateFormat("yyyy/MM");
		Date sDate;
		try {
			sDate = sdf.parse(startDate);
			Date eDate=sdf.parse(endDate);
			Calendar c = Calendar.getInstance();
			Calendar d = Calendar.getInstance();
			c.setTime(sDate);
			d.setTime(eDate);
			while(!c.after(d)){
				//判斷月份  獲得月份
				monthList.add(month.format(c.getTime()));
				c.add(Calendar.MONTH, 1);
			}
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return monthList;
  }
  
  public static List<DesignOpRead> getWeekRangeByDesignOpRead(List<DesignOpRead> rangeList){
	  List<DesignOpRead> weeks=new ArrayList<DesignOpRead>();
	  for(DesignOpRead weekDay:rangeList){
		  weekDay.setDate(convertWeekToDate(weekDay.getInweek()));
	  }
	  return weeks;
  }
  
  public static List<String>  getMonthRange(List<DesignOpRead> rangeList){
	  List<String> monthList=new ArrayList<String>();
	    SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMdd");
	    SimpleDateFormat month=new SimpleDateFormat("yyyy/MM");
	    for(DesignOpRead monthDay:rangeList){
	    	monthDay.setDate(month.format(monthDay.getDate()));
		}
		return monthList;
  }
  
  
  
  //週轉日期  比方說2016年第一週就寫201601，獲得這周的第一天和最後一天 2016/12/26-2017/01/01
  public static String convertWeekToDate(String weekDay){
	  DateTimeFormatter formatter= DateTimeFormat.forPattern("yyyyww");
		 DateTime d=DateTime.parse(weekDay,formatter);
		 System.out.println(d.getWeekOfWeekyear());
		 
		 String toDate=String.format(  
	             "%s-%s",  
	             d.dayOfWeek().withMinimumValue().minusDays(1)  
	                     .toString("yyyy/MM/dd"),  
	             d.dayOfWeek().withMaximumValue().minusDays(1)  
	                     .toString("yyyy/MM/dd"));
		 return toDate;
  }
  

  
  
  
 public static void main(String args[]) throws Exception{
//	 String startDate = "20160101";
//	 String endDate ="20170801";
//	 List<String> range=getAllDateStrInRange(startDate, endDate, "week");
//	 for(String d:range){
//		 System.out.println(d);
//	 }
//	 String startDate = "201601";
//	 String endDate ="201701";
//	 
//	 DateTimeFormatter formatter= DateTimeFormat.forPattern("yyyyee");
//	 DateTime d=DateTime.parse(startDate,formatter);
//	 System.out.println(d.getWeekOfWeekyear());
//	 String a=String.format(  
//             "%s-%s",  
//             d.dayOfWeek().withMinimumValue()  
//                     .toString("yyyy/MM/dd"),  
//             d.dayOfWeek().withMaximumValue()  
//                     .toString("yyyy/MM/dd"));
//	 System.out.println(a);
//	 System.out.println(convertWeekToDate("201644"));
	 
	 Map<String,Object> tree=new TreeMap<String,Object>();
	 tree.put("201605", new Object());
	 tree.put("201606", new Object());
	 tree.put("201607", new Object());
	 tree.put("201608", new Object());
	 tree.put("201609", new Object());
	 tree.put("201610", new Object());
	 Iterator<String> key=tree.keySet().iterator();
	 while(key.hasNext()){
		 System.out.println(key.next());
	 }
 }
}

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