blocks|key|1413836|text|long+timestamp+=+Long.parseLong(date)
Date+expiry+=+new+Date(timestamp+*+1000)|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1413837|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>long timestamp = Long.parseLong(date)
Date expiry = new Date(timestamp * 1000)
</code></pre>

blocks|key|1413932|text|不如这样吧：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1413933|Date+expiry+=+new+Date(Long.parseLong(date));|code-block|syntax|javascript|1413934|编辑:根据rde6173的回答并仔细查看问题中指定的输入，"1081157732“似乎是一个基于秒的纪元值，因此您需要将parseLong()中的long乘以1000以转换为毫秒，这是Java构造函数使用的，因此：|offset|length|1413935|Date+expiry+=+new+Date(Long.parseLong(date)+*+1000);|1413936|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/62195/rde6173^0|0|0|5|7|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@$I|X|J|Y|1|Z]]|A|$]]|$1|K|3|L|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

How about just:

<pre><code>Date expiry = new Date(Long.parseLong(date));
</code></pre>

EDIT: as per <a href="https://stackoverflow.com/users/62195/rde6173">rde6173</a>'s answer and taking a closer look at the input specified in the question , "1081157732" appears to be a seconds-based epoch value so you'd want to multiply the long from parseLong() by 1000 to convert to milliseconds, which is what Java's Date constructor uses, so:

<pre><code>Date expiry = new Date(Long.parseLong(date) * 1000);
</code></pre>

blocks|key|1628699|text|嗯..。如果我没记错的话，UNIX纪元时间实际上与|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1628700|System.currentTimeMillis()|code-block|syntax|javascript|1628701|所以写|1628702|try+{
++++Date+expiry+=+new+Date(Long.parseLong(date));
}
catch(NumberFormatException+e)+{
++++//+...
}|1628703|应该可以工作(并且比日期解析快得多)|1628704|entityMap^0|0|0|0|0|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]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Hum.... if I am not mistaken, the UNIX Epoch time is actually the same thing as 

<pre><code>System.currentTimeMillis()
</code></pre>

So writing

<pre><code>try {
 Date expiry = new Date(Long.parseLong(date));
}
catch(NumberFormatException e) {
 // ...
}
</code></pre>

should work (and be much faster that date parsing)

blocks|key|1414008|text|更好的方法是使用JodaTime。更容易将字符串解析为字符串。也是线程安全的。值得你花时间去实现它。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1414009|entityMap|0|LINK|mutability|MUTABLE|url|http://joda-time.sourceforge.net/^0|8|8|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Better yet, use <a href="http://joda-time.sourceforge.net/" rel="nofollow noreferrer">JodaTime</a>. Much easier to parse strings and into strings. Is thread safe as well. Worth the time it will take you to implement it.

blocks|key|1414039|text|将秒时间戳转换为毫秒时间戳。你可以像这样整洁地使用TimeUnit应用程序接口。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1414040|long+milliSecondTimeStamp+=+MILLISECONDS.convert(secondsTimeStamp,+SECONDS)|offset|length|style|CODE|1414041|entityMap^0|0|0|23|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

To convert seconds time stamp to millisecond time stamp. You could use the TimeUnit API and neat like this.

<code>long milliSecondTimeStamp = MILLISECONDS.convert(secondsTimeStamp, SECONDS)</code>

blocks|key|1414088|text|java.time|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1414089|使用Java8和更高版本中内置的java.time框架。|offset|length|style|CODE|1414090|import+java.time.LocalDateTime;
import+java.time.Instant;
import+java.time.ZoneId;

long+epoch+=+Long.parseLong("1081157732");
Instant+instant+=+Instant.ofEpochSecond(epoch);
ZonedDateTime.ofInstant(instant,+ZoneOffset.UTC);+#+ZonedDateTime+=+2004-04-05T09:35:32Z[UTC]|code-block|syntax|javascript|1414091|在这种情况下，您最好使用ZonedDateTime将其标记为UTC时区中的日期，因为在Unix+time中，纪元是在Java中定义的。|1414092|ZoneOffset包含一个用于协调世界时时区的方便的常量，如上面最后一行所示。它的超类ZoneId可以用来调整到其他时区。|1414093|ZoneId+zoneId+=+ZoneId.of(+"America/Montreal"+);|1414094|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/8/docs/api/java/time/package-summary.html|1|http://docs.oracle.com/javase/8/docs/api/java/time/ZonedDateTime.html|2|https://en.wikipedia.org/wiki/Coordinated_Universal_Time|3|https://en.wikipedia.org/wiki/Unix_time|4|http://docs.oracle.com/javase/8/docs/api/java/time/ZoneOffset.html|5|http://docs.oracle.com/javase/8/docs/api/java/time/ZoneId.html^0|0|G|9|G|9|0|0|0|C|D|C|D|1|U|3|2|17|9|3|0|0|A|18|6|0|A|4|18|6|5|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1B|8|@$D|1C|E|1D|F|G]]|9|@$D|1E|E|1F|1|1G]]|A|$]]|$1|H|3|I|5|J|7|1H|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1I|8|@$D|1J|E|1K|F|G]]|9|@$D|1L|E|1M|1|1N]|$D|1O|E|1P|1|1Q]|$D|1R|E|1S|1|1T]]|A|$]]|$1|O|3|P|5|6|7|1U|8|@$D|1V|E|1W|F|G]|$D|1X|E|1Y|F|G]]|9|@$D|1Z|E|20|1|21]|$D|22|E|23|1|24]]|A|$]]|$1|Q|3|R|5|J|7|25|8|@]|9|@]|A|$K|L]]|$1|S|3|-4|5|6|7|26|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]|10|$5|V|W|X|A|$Y|11]]|12|$5|V|W|X|A|$Y|13]]|14|$5|V|W|X|A|$Y|15]]|16|$5|V|W|X|A|$Y|17]]|18|$5|V|W|X|A|$Y|19]]]]

<h1>java.time</h1>
Using the <a href="http://docs.oracle.com/javase/8/docs/api/java/time/package-summary.html" rel="noreferrer"><code>java.time</code></a> framework built into Java 8 and later.
<pre><code>import java.time.LocalDateTime;
import java.time.Instant;
import java.time.ZoneId;

long epoch = Long.parseLong(&quot;1081157732&quot;);
Instant instant = Instant.ofEpochSecond(epoch);
ZonedDateTime.ofInstant(instant, ZoneOffset.UTC); # ZonedDateTime = 2004-04-05T09:35:32Z[UTC]
</code></pre>
In this case you should better use <a href="http://docs.oracle.com/javase/8/docs/api/java/time/ZonedDateTime.html" rel="noreferrer"><code>ZonedDateTime</code></a> to mark it as date in <a href="https://en.wikipedia.org/wiki/Coordinated_Universal_Time" rel="noreferrer">UTC</a> time zone because Epoch is defined in UTC in <a href="https://en.wikipedia.org/wiki/Unix_time" rel="noreferrer">Unix time</a> used by Java.
<a href="http://docs.oracle.com/javase/8/docs/api/java/time/ZoneOffset.html" rel="noreferrer"><code>ZoneOffset</code></a> contains a handy constant for the UTC time zone, as seen in last line above. Its superclass, <a href="http://docs.oracle.com/javase/8/docs/api/java/time/ZoneId.html" rel="noreferrer"><code>ZoneId</code></a> can be used to adjust into other time zones.
<pre><code>ZoneId zoneId = ZoneId.of( &quot;America/Montreal&quot; );
</code></pre>

I have a string containing the <a href="https://en.wikipedia.org/wiki/Unix_time" rel="noreferrer">UNIX Epoch time</a>, and I need to convert it to a Java Date object.

<pre><code>String date = "1081157732";
DateFormat df = new SimpleDateFormat(""); // This line
try {
 Date expiry = df.parse(date);
 } catch (ParseException ex) {
 ex.getStackTrace();
}
</code></pre>

The marked line is where I'm having trouble. I can't work out what the argument to SimpleDateFormat() should be, or even if I should be using SimpleDateFormat().

Unix epoch time to Java Date object

Java

我有一个包含的字符串，需要将其转换为Java Date对象。String date = "1081157732";DateFormat df = new SimpleDateFormat(""); // This linetry {  Date expiry = df.parse(date); } catch (Par...

问Unix纪元时间到Java Date对象
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