两个日期之间的日期

public static  List getDateList(String start, String end) throws Exception{  
        List rlist = new ArrayList();  
        Date date = null;  
        Calendar cal = Calendar.getInstance();  
        date = new SimpleDateFormat("yy-MM-dd").parse(start);   
        rlist.add(new SimpleDateFormat("yyyy-MM-dd").format(date));  
        cal.setTime(date);  
        while(true){
         
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
         if(sdf.format(cal.getTime()).equals(end)){  
                break;  
            }
         cal.add(Calendar.DAY_OF_MONTH, 1); 
            rlist.add(sdf.format(cal.getTime())); 
           
          
        }  
        return rlist;  
    }