LocalDate 和 Date 互相转换

/**
* localDate to date
* @param localDate
* @return
*/
private Date asDate(LocalDate localDate){
ZoneId zoneId = ZoneId.systemDefault();
ZonedDateTime zonedDateTime = localDate.atStartOfDay(zoneId);
Instant instant = zonedDateTime.toInstant();
return Date.from(instant);
}

/**
* date to localDate
* @param date
* @return
*/
private LocalDate asLocalDate(Date date){
Instant instant = date.toInstant();
ZoneId zoneId = ZoneId.systemDefault();
ZonedDateTime zonedDateTime = ZonedDateTime.ofInstant(instant, zoneId);
return zonedDateTime.toLocalDate();
}

@Test
public void test(){

Date date= asDate(LocalDate.of(2017, 8, 22));
System.out.println(date);
}