java后台判断初始时间到当前时间是否超过90天

      { List list=carTableDao.findListoverdue(cartable);
            
            Date date=new Date();//当前时间
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String dateString = formatter.format(date);
            if (null != cartable)
            for(Cartable a:list)
            {
                Timestamp mantime=a.getSeizureTime();
                
                String datemantime = formatter.format(mantime);
                
                long day = formatter.parse(dateString).getTime() - formatter.parse(datemantime).getTime();//判断两个时间距离
                
                long chaday=day/86400000;
                
                if(chaday>90) //定义多少天过期
                {  
                    
                    Result accidenorderResult= accidentDao.findcar("from Accidenorder where               accidentNum='"+a.getAccidentNum()+"'");
                    
                    if(accidenorderResult.getData()!=null&&accidenorderResult.getData().size()!=0){
                        Accidenorder accidenorder = (Accidenorder) accidenorderResult.getData().get(0);
                        accidenorder.setHaveDoneFlag(2);
                        accidentDao.updateEntity(accidenorder);
                    }
                    
                    a.setHaveDoneFlag(2);
                    
                    carTableDao.updateEntity(a);
                }
                
            } }
            return carTableDao.findByReleaseTimeselect(cartable, page, row);
            
             
        
    }