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(wèn)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));  
          }
     }
}