Date类型减出天数

//期望格式模板

SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");

//到期时间

Date expireTime1= record.getExpireTime();

//当前时间

Date nowdate1=new Date();

//Date转为string类型

String expireTime = DateUtils.format(expireTime1, "yyyy-MM-dd");

String nowdate = DateUtils.format(nowdate1, "yyyy-MM-dd");

//并且格式化

Date fexpireTime = sdf.parse(expireTime);

Date fnowdate= sdf.parse(nowdate);

//减出天数

long stateTimeLong = fnowdate.getTime();

long endTimeLong = fexpireTime.getTime();

//结束时间扣除现在时间

long day = (endTimeLong-stateTimeLong)/(24*60*60*1000);

record.setCount(day);