/*** 获取日期间日期* @param start* @param end* @return*/private static List<Date> getBetweenDates(Date start, Date end) {List<Date> result = new ArrayList<>();Calendar tempStart = Calendar.getInstance();tempStart.setTime(start);Calendar tempEnd = Calendar.getInstance();tempEnd.setTime(end);tempEnd.add(Calendar.DAY_OF_YEAR, 1);while (tempStart.before(tempEnd)) {result.add(tempStart.getTime());tempStart.add(Calendar.DAY_OF_YEAR, 1);}return result;}

    /*** 根据日期获取 星期 （2019-05-06 ——> 星期一）* @param datetime* @return*/public static String dateToWeek(String datetime) {SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd");String[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};Calendar cal = Calendar.getInstance();Date date;try {date = f.parse(datetime);cal.setTime(date);} catch (ParseException e) {e.printStackTrace();}//一周的第几天int w = cal.get(Calendar.DAY_OF_WEEK) - 1;if (w < 0)w = 0;return weekDays[w];}

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;public class TestMain {public static void main(String[] args) throws ParseException {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");List<Date> dateList = getBetweenDates(sdf.parse("2019-05-06"), sdf.parse("2019-05-12"));for (Date date : dateList) {System.out.println(sdf.format(date) + " " + dateToWeek(sdf.format(date)));}}/*** 获取日期间日期* @param start* @param end* @return*/private static List<Date> getBetweenDates(Date start, Date end) {List<Date> result = new ArrayList<>();Calendar tempStart = Calendar.getInstance();tempStart.setTime(start);Calendar tempEnd = Calendar.getInstance();tempEnd.setTime(end);tempEnd.add(Calendar.DAY_OF_YEAR, 1);while (tempStart.before(tempEnd)) {result.add(tempStart.getTime());tempStart.add(Calendar.DAY_OF_YEAR, 1);}return result;}/*** 根据日期获取 星期 （2019-05-06 ——> 星期一）* @param datetime* @return*/public static String dateToWeek(String datetime) {SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd");String[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};Calendar cal = Calendar.getInstance();Date date;try {date = f.parse(datetime);cal.setTime(date);} catch (ParseException e) {e.printStackTrace();}//一周的第几天int w = cal.get(Calendar.DAY_OF_WEEK) - 1;if (w < 0)w = 0;return weekDays[w];}
}