如何将Joda LocalDate转换为java.util.Date？

Question

将JodaTime LocalDate转换为java.util.Date对象的最简单方法是什么？

Answer 1

JodaTime

To convert JodaTime's org.joda.time.LocalDate to java.util.Date , do

Date date = localDate.toDateTimeAtStartOfDay().toDate();

To convert JodaTime's org.joda.time.LocalDateTime to java.util.Date , do

Date date = localDateTime.toDate();

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JavaTime

To convert Java8's java.time.LocalDate to java.util.Date , do

Date date = Date.from(localDate.atStartOfDay().atZone(ZoneId.systemDefault()).toInstant());

To convert Java8's java.time.LocalDateTime to java.util.Date , do

Date date = Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());

You might be tempted to shorten it with LocalDateTime#toInstant(ZoneOffset) , but there isn't a direct API to obtain the system default zone offset.

To convert Java8's java.time.ZonedDateTime to java.util.Date , do

Date date = Date.from(zonedDateTime.toInstant());

Answer 2

Since 2.0 version LocalDate has a toDate() method

Date date = localDate.toDate();

If using version 1.5 - 2.0 use:

Date date = localDate.toDateTimeAtStartOfDay().toDate();

On older versions you are left with:

Date date = localDate.toDateMidnight().toDate();

Answer 3

You will need a timezone.

LocalDate date = ...

Date utilDate = date.toDateTimeAtStartOfDay( timeZone ).toDate( );

Answer 4

也许这个？

localDate.toDateTimeAtCurrentTime().toDate();

Answer 5

Try this.

new Date(localDate.toEpochDay())