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    public String getTimeInterval(Date date) {           Calendar cal = Calendar.getInstance();           cal.setTime(date);           // 判斷要計(jì)算的日期是否是周日，如果是則減一天計(jì)算周六的，否則會(huì)出問題，計(jì)算到下一周去了           int dayWeek = cal.get(Calendar.DAY_OF_WEEK);// 獲得當(dāng)前日期是一個(gè)星期的第幾天           if (1 == dayWeek) {              cal.add(Calendar.DAY_OF_MONTH, -1);           }           // System.out.println("要計(jì)算日期為:" + sdf.format(cal.getTime())); // 輸出要計(jì)算日期           // 設(shè)置一個(gè)星期的第一天，按中國(guó)的習(xí)慣一個(gè)星期的第一天是星期一           cal.setFirstDayOfWeek(Calendar.MONDAY);           // 獲得當(dāng)前日期是一個(gè)星期的第幾天           int day = cal.get(Calendar.DAY_OF_WEEK);           // 根據(jù)日歷的規(guī)則，給當(dāng)前日期減去星期幾與一個(gè)星期第一天的差值           cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);           String imptimeBegin = sdf.format(cal.getTime());           // System.out.println("所在周星期一的日期：" + imptimeBegin);           cal.add(Calendar.DATE, 6);           String imptimeEnd = sdf.format(cal.getTime());           // System.out.println("所在周星期日的日期：" + imptimeEnd);           return imptimeBegin + "," + imptimeEnd;      }

    public String getLastTimeInterval() {           Calendar calendar1 = Calendar.getInstance();           Calendar calendar2 = Calendar.getInstance();           int dayOfWeek = calendar1.get(Calendar.DAY_OF_WEEK) - 1;           int offset1 = 1 - dayOfWeek;           int offset2 = 7 - dayOfWeek;           calendar1.add(Calendar.DATE, offset1 - 7);           calendar2.add(Calendar.DATE, offset2 - 7);           // System.out.println(sdf.format(calendar1.getTime()));// last Monday           String lastBeginDate = sdf.format(calendar1.getTime());           // System.out.println(sdf.format(calendar2.getTime()));// last Sunday           String lastEndDate = sdf.format(calendar2.getTime());           return lastBeginDate + "," + lastEndDate;      }

     public static List<Date> findDates(Date dBegin, Date dEnd)       {        List lDate = new ArrayList();        lDate.add(dBegin);        Calendar calBegin = Calendar.getInstance();        // 使用給定的 Date 設(shè)置此 Calendar 的時(shí)間        calBegin.setTime(dBegin);        Calendar calEnd = Calendar.getInstance();        // 使用給定的 Date 設(shè)置此 Calendar 的時(shí)間        calEnd.setTime(dEnd);        // 測(cè)試此日期是否在指定日期之后        while (dEnd.after(calBegin.getTime()))        {         // 根據(jù)日歷的規(guī)則，為給定的日歷字段添加或減去指定的時(shí)間量         calBegin.add(Calendar.DAY_OF_MONTH, 1);         lDate.add(calBegin.getTime());        }        return lDate;       }

 public class Text{ 
    public statis void main(string args[]){
        String yz_time=getTimeInterval(new Date());//獲取本周時(shí)間        String array[]=yz_time.split(",");        String start_time=array[0];//本周第一天        String end_time=array[1];  //本周最后一天 
          //格式化日期               SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");            Date dBegin = sdf.parse(start_time);            Date dEnd = sdf.parse(end_time);            List<Date> lDate = findDates(dBegin, dEnd);//獲取這周所有date          for (Date date : lDate)            {             System.out.println(sdf.format(date));            }     }
}