blocks|key|167264|text|LocalDate+localDate+=+LocalDate.parse(+new+SimpleDateFormat("yyyy-MM-dd").format(date)+);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|167265|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>LocalDate localDate = LocalDate.parse( new SimpleDateFormat("yyyy-MM-dd").format(date) );
</code></pre>

blocks|key|167241|text|如果你使用的是Java+8，@JodaStephen的答案显然是最好的。但是，如果您使用的是JSR-310+backport，不幸的是，您必须执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|167242|Date+input+=+new+Date();
Calendar+cal+=+Calendar.getInstance();
cal.setTime(input);
LocalDate+date+=+LocalDate.of(cal.get(Calendar.YEAR),
++++++++cal.get(Calendar.MONTH)+%2B+1,
++++++++cal.get(Calendar.DAY_OF_MONTH));|code-block|syntax|javascript|167243|entityMap|0|LINK|mutability|MUTABLE|url|http://www.threeten.org/threetenbp/^0|1A|G|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If you're using Java 8, @JodaStephen's answer is obviously the best. However, if you're working with the <a href="http://www.threeten.org/threetenbp/">JSR-310 backport</a>, you unfortunately have to do something like this:

<pre><code>Date input = new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(input);
LocalDate date = LocalDate.of(cal.get(Calendar.YEAR),
 cal.get(Calendar.MONTH) + 1,
 cal.get(Calendar.DAY_OF_MONTH));
</code></pre>

blocks|key|4673141|text|LocalDate+ld+=+new+java.sql.Date(+new+java.util.Date().getTime()+).toLocalDate();|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4673142|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>LocalDate ld = new java.sql.Date( new java.util.Date().getTime() ).toLocalDate();
</code></pre>

blocks|key|167336|text|您可以在一行中进行转换：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|167337|public+static+LocalDate+getLocalDateFromDate(Date+date){
+++return+LocalDate.from(Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()));
}|code-block|syntax|javascript|167338|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can convert in one line :

<pre><code>public static LocalDate getLocalDateFromDate(Date date){
 return LocalDate.from(Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()));
}
</code></pre>

blocks|key|167374|text|首先，很容易将日期转换为Instant|type|unstyled|depth|inlineStyleRanges|entityRanges|data|167375|Instant+timestamp+=+new+Date().toInstant();+|code-block|syntax|javascript|167376|然后，您可以使用ofInstant()方法将Instant转换为JDK8中的任何日期api：|167377|LocalDateTime+date+=+LocalDateTime.ofInstant(timestamp,+ZoneId.systemDefault());+|167378|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

first, it's easy to convert a Date to an Instant

<pre><code>Instant timestamp = new Date().toInstant(); 
</code></pre>

Then, you can convert the Instant to any date api in jdk 8 using ofInstant() method:

<pre><code>LocalDateTime date = LocalDateTime.ofInstant(timestamp, ZoneId.systemDefault()); 
</code></pre>

blocks|key|167312|text|public+static+LocalDate+Date2LocalDate(Date+date)+{
++++++++return+LocalDate.parse(date.toString(),+DateTimeFormatter.ofPattern("EEE+MMM+dd+HH:mm:ss+zzz+yyyy"))|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|167313|此格式来自Date#tostring|unstyled|offset|length|style|CODE|167314|++++public+String+toString()+{
++++++++//+"EEE+MMM+dd+HH:mm:ss+zzz+yyyy";
++++++++BaseCalendar.Date+date+=+normalize();
++++++++StringBuilder+sb+=+new+StringBuilder(28);
++++++++int+index+=+date.getDayOfWeek();
++++++++if+(index+==+BaseCalendar.SUNDAY)+{
++++++++++++index+=+8;
++++++++}
++++++++convertToAbbr(sb,+wtb[index]).append('+');++++++++++++++++++++++++//+EEE
++++++++convertToAbbr(sb,+wtb[date.getMonth()+-+1+%2B+2+%2B+7]).append('+');++//+MMM
++++++++CalendarUtils.sprintf0d(sb,+date.getDayOfMonth(),+2).append('+');+//+dd

++++++++CalendarUtils.sprintf0d(sb,+date.getHours(),+2).append(':');+++//+HH
++++++++CalendarUtils.sprintf0d(sb,+date.getMinutes(),+2).append(':');+//+mm
++++++++CalendarUtils.sprintf0d(sb,+date.getSeconds(),+2).append('+');+//+ss
++++++++TimeZone+zi+=+date.getZone();
++++++++if+(zi+!=+null)+{
++++++++++++sb.append(zi.getDisplayName(date.isDaylightTime(),+TimeZone.SHORT,+Locale.US));+//+zzz
++++++++}+else+{
++++++++++++sb.append("GMT");
++++++++}
++++++++sb.append('+').append(date.getYear());++//+yyyy
++++++++return+sb.toString();
++++}|167315|entityMap^0|0|5|D|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|P|8|@$G|Q|H|R|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$B|C]]|$1|M|3|-4|5|F|7|T|8|@]|9|@]|A|$]]]|N|$]]

<pre><code>public static LocalDate Date2LocalDate(Date date) {
 return LocalDate.parse(date.toString(), DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy"))
</code></pre>

this format is from <code>Date#tostring</code>

<pre><code> public String toString() {
 // "EEE MMM dd HH:mm:ss zzz yyyy";
 BaseCalendar.Date date = normalize();
 StringBuilder sb = new StringBuilder(28);
 int index = date.getDayOfWeek();
 if (index == BaseCalendar.SUNDAY) {
 index = 8;
 }
 convertToAbbr(sb, wtb[index]).append(' '); // EEE
 convertToAbbr(sb, wtb[date.getMonth() - 1 + 2 + 7]).append(' '); // MMM
 CalendarUtils.sprintf0d(sb, date.getDayOfMonth(), 2).append(' '); // dd

 CalendarUtils.sprintf0d(sb, date.getHours(), 2).append(':'); // HH
 CalendarUtils.sprintf0d(sb, date.getMinutes(), 2).append(':'); // mm
 CalendarUtils.sprintf0d(sb, date.getSeconds(), 2).append(' '); // ss
 TimeZone zi = date.getZone();
 if (zi != null) {
 sb.append(zi.getDisplayName(date.isDaylightTime(), TimeZone.SHORT, Locale.US)); // zzz
 } else {
 sb.append("GMT");
 }
 sb.append(' ').append(date.getYear()); // yyyy
 return sb.toString();
 }
</code></pre>

blocks|key|167279|text|我对@JodaStephen在甲骨文EAP6上的实现遇到了问题，因此，我按照http://docs.oracle.com/javase/tutorial/datetime/iso/legacy.html中的JBoss教程重写了转换。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|167280|++++Date+input+=+new+Date();
++++GregorianCalendar+gregorianCalendar+=+(GregorianCalendar)+Calendar.getInstance();
++++gregorianCalendar.setTime(input);
++++ZonedDateTime+zonedDateTime+=+gregorianCalendar.toZonedDateTime();
++++zonedDateTime.toLocalDate();|code-block|syntax|javascript|167281|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/tutorial/datetime/iso/legacy.html^0|12|1R|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

I have had problems with @JodaStephen's implementation on JBoss EAP 6. So, I rewrote the conversion following Oracle's Java Tutorial in <a href="http://docs.oracle.com/javase/tutorial/datetime/iso/legacy.html" rel="nofollow">http://docs.oracle.com/javase/tutorial/datetime/iso/legacy.html</a>.

<pre class="lang-java prettyprint-override"><code> Date input = new Date();
 GregorianCalendar gregorianCalendar = (GregorianCalendar) Calendar.getInstance();
 gregorianCalendar.setTime(input);
 ZonedDateTime zonedDateTime = gregorianCalendar.toZonedDateTime();
 zonedDateTime.toLocalDate();
</code></pre>

blocks|key|4673274|text|如果您正在使用包括ThreeTenABP在内的ThreeTen后端|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4673275|++++Date+input+=+new+Date();+//+Imagine+your+Date+here
++++LocalDate+date+=+DateTimeUtils.toInstant(input)
++++++++++++.atZone(ZoneId.systemDefault())
++++++++++++.toLocalDate();|code-block|syntax|javascript|4673276|如果您正在使用JSR310的后端口，那么要么您没有Date.toInstant()方法，要么它不会为您提供进一步转换所需的org.threeten.bp.Instant。相反，您需要使用作为后端的一部分提供的DateTimeUtils类。转换的其余部分是相同的，所以解释也是一样的。|offset|length|style|CODE|4673277|entityMap^0|0|0|P|G|1P|N|2W|D|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]|$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|N|$]]

<h2>If you are using ThreeTen Backport including ThreeTenABP</h2>
<pre><code> Date input = new Date(); // Imagine your Date here
 LocalDate date = DateTimeUtils.toInstant(input)
 .atZone(ZoneId.systemDefault())
 .toLocalDate();
</code></pre>
If you are using the backport of JSR 310, either you haven’t got a <code>Date.toInstant()</code> method or it won’t give you the <code>org.threeten.bp.Instant</code> that you need for you further conversion. Instead you need to use the <code>DateTimeUtils</code> class that comes as part of the backport. The remainder of the conversion is the same, so so is the explanation.

blocks|key|4673232|text|这1行简单的代码有什么问题？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4673233|new+LocalDateTime(new+Date().getTime()).toLocalDate();|code-block|syntax|javascript|4673234|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

What's wrong with this 1 simple line?

<pre><code>new LocalDateTime(new Date().getTime()).toLocalDate();
</code></pre>

blocks|key|4673175|text|我用下面的方法解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4673176|++import+org.joda.time.LocalDate;
++Date+myDate+=+new+Date();
++LocalDate+localDate+=+LocalDate.fromDateFields(myDate);
++System.out.println("My+date+using+Date"+Nov+18+11:23:33+BRST+2016);
++System.out.println("My+date+using+joda.time+LocalTime"+2016-11-18);|code-block|syntax|javascript|4673177|在这种情况下，localDate以"yyyy-MM-dd“格式打印日期。|4673178|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I solved this question with solution below

<pre><code> import org.joda.time.LocalDate;
 Date myDate = new Date();
 LocalDate localDate = LocalDate.fromDateFields(myDate);
 System.out.println("My date using Date" Nov 18 11:23:33 BRST 2016);
 System.out.println("My date using joda.time LocalTime" 2016-11-18);
</code></pre>

In this case localDate print your date in this format "yyyy-MM-dd"

What is the best way to convert a <code>java.util.Date</code> object to the new JDK 8/JSR-310 <code>java.time.LocalDate</code>?

<pre><code>Date input = new Date();
LocalDate date = ???
</code></pre>

Convert java.util.Date to java.time.LocalDate

Java

将java.util.Date对象转换为新的JDK8/JSR-310 java.time.LocalDate的最佳方法是什么Date input = new Date();LocalDate date = ???

问将java.util.Date转换为java.time.LocalDate
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