java按照月份把一个时间段拆分成多个时间区间

weixin_43588659 2019-08-06 07:23:22

package com.changchong.util; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import org.junit.Test; /** * 根据一段时间区间，按月份拆分成多个时间段 * @author lxg * * 2016年9月5日下午6:18:36 */ public class SplitDateUtil { @Test public void demo(){ List<KeyValueForDate> list = SplitDateUtil.getKeyValueForDate("2015-08-23","2016-06-10"); System.out.println("开始日期--------------结束日期"); for(KeyValueForDate date : list){ System.out.println(date.getStartDate()+"-----"+date.getEndDate()); } } /** * 根据一段时间区间，按月份拆分成多个时间段 * @param startDate 开始日期 * @param endDate 结束日期 * @return */ @SuppressWarnings("deprecation") public static List<KeyValueForDate> getKeyValueForDate(String startDate,String endDate) { List<KeyValueForDate> list = null; try { list = new ArrayList<KeyValueForDate>(); String firstDay = ""; String lastDay = ""; Date d1 = new SimpleDateFormat("yyyy-MM-dd").parse(startDate);// 定义起始日期 Date d2 = new SimpleDateFormat("yyyy-MM-dd").parse(endDate);// 定义结束日期 Calendar dd = Calendar.getInstance();// 定义日期实例 dd.setTime(d1);// 设置日期起始时间 Calendar cale = Calendar.getInstance(); Calendar c = Calendar.getInstance(); c.setTime(d2); int startDay = d1.getDate(); int endDay = d2.getDate(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); KeyValueForDate keyValueForDate = null; while (dd.getTime().before(d2)) {// 判断是否到结束日期 keyValueForDate = new KeyValueForDate(); cale.setTime(dd.getTime()); if(dd.getTime().equals(d1)){ cale.set(Calendar.DAY_OF_MONTH, dd .getActualMaximum(Calendar.DAY_OF_MONTH)); lastDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(sdf.format(d1)); keyValueForDate.setEndDate(lastDay); }else if(dd.get(Calendar.MONTH) == d2.getMonth() && dd.get(Calendar.YEAR) == c.get(Calendar.YEAR)){ cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 firstDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(firstDay); keyValueForDate.setEndDate(sdf.format(d2)); }else { cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 firstDay = sdf.format(cale.getTime()); cale.set(Calendar.DAY_OF_MONTH, dd .getActualMaximum(Calendar.DAY_OF_MONTH)); lastDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(firstDay); keyValueForDate.setEndDate(lastDay); } list.add(keyValueForDate); dd.add(Calendar.MONTH, 1);// 进行当前日期月份加1 } if(endDay<startDay){ keyValueForDate = new KeyValueForDate(); cale.setTime(d2); cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 firstDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(firstDay); keyValueForDate.setEndDate(sdf.format(d2)); list.add(keyValueForDate); } } catch (ParseException e) { return null; } return list; } } class KeyValueForDate{ private String startDate; private String endDate; public String getStartDate() { return startDate; } public void setStartDate(String startDate) { this.startDate = startDate; } public String getEndDate() { return endDate; } public void setEndDate(String endDate) { this.endDate = endDate; } }

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baichangda234 2019-08-12

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/**
     * 获取开始时间结束时间按照 日期单位 形成多个日期区间
     * 第一个区间开始时间为传入开始时间
     * 最后一个区间结束时间为传入结束时间
     * @param startDate
     * @param endDate
     * @param unit 支持 ChronoUnit.DAYS,ChronoUnit.WEEKS,ChronoUnit.MONTHS
     * @param zoneId 时区
     * @return 每一个数组第一个为开始时间,第二个为结束时间;开始时间为当天0.0.0,结束时间为当天23.59.59
     */
    public static List<Date[]> rangeDate(Date startDate, Date endDate, ChronoUnit unit,ZoneId zoneId){
        List<Date[]> returnList=new ArrayList<>();
        ZonedDateTime zdt1= ZonedDateTime.ofInstant(startDate.toInstant(),zoneId);
        ZonedDateTime zdt2= ZonedDateTime.ofInstant(endDate.toInstant(),zoneId);
        switch (unit){
            case DAYS:{
                ZonedDateTime start= zdt1.with(ChronoField.SECOND_OF_DAY,0);
                ZonedDateTime end= zdt1.with(ChronoField.SECOND_OF_DAY, ChronoUnit.DAYS.getDuration().getSeconds()-1);
                while(true){
                    returnList.add(new Date[]{Date.from(start.toInstant()),Date.from(end.toInstant())});
                    if(!zdt2.isBefore(start)&&!zdt2.isAfter(end)){
                        break;
                    }else{
                        start=start.plusDays(1);
                        end=end.plusDays(1);
                    }
                }

                break;
            }
            case WEEKS:{
                int dayOfWeek=zdt1.get(ChronoField.DAY_OF_WEEK);
                ZonedDateTime start= zdt1.plusDays(1-dayOfWeek).with(ChronoField.SECOND_OF_DAY,0);
                ZonedDateTime end= zdt1.plusDays(7-dayOfWeek).with(ChronoField.SECOND_OF_DAY, ChronoUnit.DAYS.getDuration().getSeconds()-1);
                while(true){
                    returnList.add(new Date[]{Date.from(start.toInstant()),Date.from(end.toInstant())});
                    if(!zdt2.isBefore(start)&&!zdt2.isAfter(end)){
                        break;
                    }else{
                        start=start.plusWeeks(1);
                        end=end.plusWeeks(1);
                    }
                }
                if(!returnList.isEmpty()){
                    Date[] firstEle=returnList.get(0);
                    Date[] lastEle=returnList.get(returnList.size()-1);
                    firstEle[0]=Date.from(zdt1.with(ChronoField.SECOND_OF_DAY,0).toInstant());
                    lastEle[1]=Date.from(zdt2.with(ChronoField.SECOND_OF_DAY,0).toInstant());
                }
                break;
            }
            case MONTHS:{
                ZonedDateTime temp=zdt1;
                while(true) {
                    int dayOfMonth = temp.get(ChronoField.DAY_OF_MONTH);
                    int max = temp.getMonth().maxLength();
                    ZonedDateTime start = temp.plusDays(1 - dayOfMonth).with(ChronoField.SECOND_OF_DAY, 0);
                    ZonedDateTime end = temp.plusDays(max - dayOfMonth).with(ChronoField.SECOND_OF_DAY, ChronoUnit.DAYS.getDuration().getSeconds() - 1);
                    returnList.add(new Date[]{Date.from(start.toInstant()),Date.from(end.toInstant())});
                    if(!zdt2.isBefore(start)&&!zdt2.isAfter(end)){
                        break;
                    }else{
                        temp=temp.plusMonths(1);
                    }
                }
                if(!returnList.isEmpty()){
                    Date[] firstEle=returnList.get(0);
                    Date[] lastEle=returnList.get(returnList.size()-1);
                    firstEle[0]=Date.from(zdt1.with(ChronoField.SECOND_OF_DAY,0).toInstant());
                    lastEle[1]=Date.from(zdt2.with(ChronoField.SECOND_OF_DAY,0).toInstant());
                }
                break;
            }
            default:{
                throw BaseRuntimeException.getException("[DateUtil.rangeDate],ChronoUnit["+unit.toString()+"] Not Support!");
            }
        }
        return returnList;
    }

迷途的码农 2019-08-08

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简单的逻辑被楼主写的这么复杂，神人啊

Monday_@@ 2019-08-08

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package com.changchong.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import org.junit.Test;

/** * 根据一段时间区间，按月份拆分成多个时间段 * @author lxg * * 2016年9月5日下午6:18:36 */
public class SplitDateUtil {
	@Test
	public void demo() {
		List<KeyValueForDate> list = SplitDateUtil.getKeyValueForDate("2015-08-23", "2016-06-10");
		System.out.println("开始日期--------------结束日期");
		for (KeyValueForDate date : list) {
			System.out.println(date.getStartDate() + "-----" + date.getEndDate());
		}
	}

/** * 根据一段时间区间，按月份拆分成多个时间段 * @param startDate 开始日期 * @param endDate 结束日期 * @return */ 
	@SuppressWarnings("deprecation") 
	public static List<KeyValueForDate> getKeyValueForDate(String startDate,String endDate) { 
		List<KeyValueForDate> list = null; 
		try { 
			list = new ArrayList<KeyValueForDate>(); 
			String firstDay = ""; 
			String lastDay = ""; 
			Date d1 = new SimpleDateFormat("yyyy-MM-dd").parse(startDate);// 定义起始日期
			Date d2 = new SimpleDateFormat("yyyy-MM-dd").parse(endDate);// 定义结束日期
			Calendar dd = Calendar.getInstance();// 定义日期实例 
			dd.setTime(d1);// 设置日期起始时间 
			Calendar cale = Calendar.getInstance(); 
			Calendar c = Calendar.getInstance(); 
			c.setTime(d2); 
			int startDay = d1.getDate(); 
			int endDay = d2.getDate(); 
			SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); 
			KeyValueForDate keyValueForDate = null; 
			while (dd.getTime().before(d2)) {// 判断是否到结束日期 
				keyValueForDate = new KeyValueForDate(); 
				cale.setTime(dd.getTime()); 
				if(dd.getTime().equals(d1)){ c
					ale.set(Calendar.DAY_OF_MONTH, dd .getActualMaximum(Calendar.DAY_OF_MONTH)); 
				lastDay = sdf.format(cale.getTime()); 
				keyValueForDate.setStartDate(sdf.format(d1)); 
				keyValueForDate.setEndDate(lastDay); 
				}else if(
						dd.get(Calendar.MONTH) == d2.getMonth() && dd.get(Calendar.YEAR) == c.get(Calendar.YEAR)){ 
					cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 
					firstDay = sdf.format(cale.getTime()); 
					keyValueForDate.setStartDate(firstDay); 
					keyValueForDate.setEndDate(sdf.format(d2)); 
					}else { 
						cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 
						firstDay = sdf.format(cale.getTime()); 
						cale.set(Calendar.DAY_OF_MONTH, 
								dd .getActualMaximum(Calendar.DAY_OF_MONTH)); 
						lastDay = sdf.format(cale.getTime()); 
						keyValueForDate.setStartDate(firstDay); 
						keyValueForDate.setEndDate(lastDay); 
						} 
				list.add(keyValueForDate); 
				dd.add(Calendar.MONTH, 1);// 进行当前日期月份加1 
				} if(endDay<startDay){ 
					keyValueForDate = new KeyValueForDate(); 
					cale.setTime(d2); cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 
					firstDay = sdf.format(cale.getTime()); 
					keyValueForDate.setStartDate(firstDay); 
					keyValueForDate.setEndDate(sdf.format(d2)); 
					list.add(keyValueForDate); 
					} } catch (ParseException e) { 
						return null; 
						} 
		return list; 
		}
}

class KeyValueForDate{ 
			private String startDate; 
			private String endDate; 
			public String getStartDate() { 
				return startDate; 
				} 
			public void setStartDate(String startDate) { 
				this.startDate = startDate; 
				} 
			public String getEndDate() { 
				return endDate; 
				}
			public void setEndDate(String endDate) { 
				this.endDate = endDate; 
				} }}}}}}

Monday_@@ 2019-08-08

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package com.changchong.util; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import org.junit.Test; /** * 根据一段时间区间，按月份拆分成多个时间段 * @author lxg * * 2016年9月5日下午6:18:36 */ public class SplitDateUtil { @Test public void demo(){ List<KeyValueForDate> list = SplitDateUtil.getKeyValueForDate("2015-08-23","2016-06-10"); System.out.println("开始日期--------------结束日期"); for(KeyValueForDate date : list){ System.out.println(date.getStartDate()+"-----"+date.getEndDate()); } } /** * 根据一段时间区间，按月份拆分成多个时间段 * @param startDate 开始日期 * @param endDate 结束日期 * @return */ @SuppressWarnings("deprecation") public static List<KeyValueForDate> getKeyValueForDate(String startDate,String endDate) { List<KeyValueForDate> list = null; try { list = new ArrayList<KeyValueForDate>(); String firstDay = ""; String lastDay = ""; Date d1 = new SimpleDateFormat("yyyy-MM-dd").parse(startDate);// 定义起始日期 Date d2 = new SimpleDateFormat("yyyy-MM-dd").parse(endDate);// 定义结束日期 Calendar dd = Calendar.getInstance();// 定义日期实例 dd.setTime(d1);// 设置日期起始时间 Calendar cale = Calendar.getInstance(); Calendar c = Calendar.getInstance(); c.setTime(d2); int startDay = d1.getDate(); int endDay = d2.getDate(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); KeyValueForDate keyValueForDate = null; while (dd.getTime().before(d2)) {// 判断是否到结束日期 keyValueForDate = new KeyValueForDate(); cale.setTime(dd.getTime()); if(dd.getTime().equals(d1)){ cale.set(Calendar.DAY_OF_MONTH, dd .getActualMaximum(Calendar.DAY_OF_MONTH)); lastDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(sdf.format(d1)); keyValueForDate.setEndDate(lastDay); }else if(dd.get(Calendar.MONTH) == d2.getMonth() && dd.get(Calendar.YEAR) == c.get(Calendar.YEAR)){ cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 firstDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(firstDay); keyValueForDate.setEndDate(sdf.format(d2)); }else { cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 firstDay = sdf.format(cale.getTime()); cale.set(Calendar.DAY_OF_MONTH, dd .getActualMaximum(Calendar.DAY_OF_MONTH)); lastDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(firstDay); keyValueForDate.setEndDate(lastDay); } list.add(keyValueForDate); dd.add(Calendar.MONTH, 1);// 进行当前日期月份加1 } if(endDay<startDay){ keyValueForDate = new KeyValueForDate(); cale.setTime(d2); cale.set(Calendar.DAY_OF_MONTH,1);//取第一天 firstDay = sdf.format(cale.getTime()); keyValueForDate.setStartDate(firstDay); keyValueForDate.setEndDate(sdf.format(d2)); list.add(keyValueForDate); } } catch (ParseException e) { return null; } return list; } } class KeyValueForDate{ private String startDate; private String endDate; public String getStartDate() { return startDate; } public void setStartDate(String startDate) { this.startDate = startDate; } public String getEndDate() { return endDate; } public void setEndDate(String endDate) { this.endDate = endDate; } }

guishuanglin 2019-08-06

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楼主, 把代码放在代码块里, 你这样没法看. 看看这个:



public int getCLASSIFY_ID() {
	return CLASSIFY_ID;
}

Java 按照月份把一个时间段拆分成多个时间区间

package com.changchong.util; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List;

java按照星期（周）把一个时间段拆分成多个时间区间

Java使用LocalDate根据时间区间，拆分成多个时间段

package Test; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import org.junit.Test; /** * 根据一段时间区间，按月份拆分成多个时间段...

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