java开始与结束日期遍历

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import java.text.DateFormat;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import java.util.Date;import java.util.List;public class DateUtil{    public static void main(String[] args) {                  Calendar start = Calendar.getInstance();          start.set(2016 , 9 , 11);        Long startTIme = start.getTimeInMillis();              Calendar end = Calendar.getInstance();          end.set(2016, 10, 1);          Long endTime = end.getTimeInMillis();                Long oneDay = 1000 * 60 * 60 * 24l;                Long time = startTIme;          while (time <= endTime) {              Date d = new Date(time);              DateFormat df = new SimpleDateFormat("yyyyMMdd");              System.out.println(df.format(d));              time += oneDay;          }          System.out.println("-------------");        new DateUtil().printDate("2016-09-01" , "2016-09-01");    }          private static List<Date> dateSplit(Date startDate, Date endDate)            throws Exception {        if (!startDate.before(endDate)&&startDate.compareTo(endDate)==1){            throw new Exception("开始时间应该在结束时间之后");                  }                    Long spi = endDate.getTime() - startDate.getTime();        Long step = spi / (24 * 60 * 60 * 1000);// 相隔天数        List<Date> dateList = new ArrayList<Date>();        dateList.add(startDate);        for (int i = 1; i <= step; i++) {            dateList.add(new Date(dateList.get(i - 1).getTime()                    + (24 * 60 * 60 * 1000)));// 比上一天+一        }        return dateList;    }    public void printDate(String beginDate,String endDate){        try {            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");            SimpleDateFormat sdf1 = new SimpleDateFormat("yyyyMMdd");            Date start = sdf.parse(beginDate);            Date end = sdf.parse(endDate);            List<Date> lists = dateSplit(start, end);            if (!lists.isEmpty()) {                for (Date date : lists) {                    System.out.println(sdf1.format(date));                }            }        } catch (Exception e) {        }    }}
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