string转换为date,date转换string

Assert.notNull(time,"请选择时间");
//定义时间格式
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date timeDate = null;
//将string类型转换为date类型
try {
    timeDate = simpleDateFormat.parse(time);
} catch (ParseException e) {
    e.printStackTrace();
}
//把日期往后增加一天.整数往后推,负数往前移动
Calendar calendar = new GregorianCalendar();
calendar.setTime(timeDate);
calendar.add(calendar.DATE, 1);
OAccessRecord record = accessRecordMapper.selectOne(new LambdaQueryWrapper<OAccessRecord>()
    .eq(OAccessRecord::getLicensePlateNum, licensePlateNumber)
    .gt(OAccessRecord::getEntryTime, time)//
.lt(OAccessRecord::getEntryTime, DateUtils.parseDateToStr("yyyy-MM-dd HH:mm:ss",calendar.getTime())));//把时间转换为string类型
String licensePlateNum = record.getLicensePlateNum();