blocks|key|3135140|text|不确定Java解析，但那是ISO8601：http://en.wikipedia.org/wiki/ISO_8601|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3135141|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/ISO_8601^0|L|11|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]]]]

Not sure about the Java parsing, but that's ISO8601: <a href="http://en.wikipedia.org/wiki/ISO_8601" rel="noreferrer">http://en.wikipedia.org/wiki/ISO_8601</a>

blocks|key|248728|text|T只是分隔日期和时间的文字，Z表示“零小时偏移量”，也称为"Zulu时间“(UTC)。如果你的字符串总是有一个"Z“，你可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|248729|SimpleDateFormat+format+=+new+SimpleDateFormat(
++++"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'",+Locale.US);
format.setTimeZone(TimeZone.getTimeZone("UTC"));|code-block|syntax|javascript|248730|或者使用Joda+Time，您可以使用ISODateTimeFormat.dateTime()。|offset|length|style|CODE|248731|entityMap|0|LINK|mutability|MUTABLE|url|https://www.joda.org/joda-time/|1|https://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--^0|0|0|J|S|4|9|0|J|S|1|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]]|9|@$I|11|J|12|1|13]|$I|14|J|15|1|16]]|A|$]]|$1|M|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]|U|$5|P|Q|R|A|$S|V]]]]

The T is just a literal to separate the date from the time, and the Z means "zero hour offset" also known as "Zulu time" (UTC). If your strings always have a "Z" you can use:

<pre><code>SimpleDateFormat format = new SimpleDateFormat(
 "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
format.setTimeZone(TimeZone.getTimeZone("UTC"));
</code></pre>

Or using <a href="https://www.joda.org/joda-time/" rel="noreferrer">Joda Time</a>, you can use <a href="https://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--" rel="noreferrer"><code>ISODateTimeFormat.dateTime()</code></a>.

blocks|key|3135222|text|tl;dr|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3135223|您的输入字符串使用标准格式。|3135224|Instant.parse+(+"2011-08-12T20:17:46.384Z"+)+|code-block|syntax|javascript|3135225|ISO+8601|3135226|这种格式是由合理的实用标准ISO+8601定义的。|offset|length|3135227|T将日期部分与时间部分分开。末尾的Z表示UTC+(即从UTC偏移0小时-分-秒)。Z为pronounced+“Zulu”。|style|CODE|3135228|java.time|3135229|与Java的最早版本捆绑在一起的旧的日期-时间类已经被证明是设计糟糕、令人困惑和麻烦的。避开他们。|3135230|取而代之的是，使用Java8和更高版本中内置的java.time框架。java.time类替代了旧的date-time类和非常成功的Joda-Time库。|3135231|在解析/生成日期-时间值的文本表示形式时，java.time类默认使用ISO+8601。|3135232|Instant类表示UTC中时间轴上的某个时刻，分辨率为nanoseconds。这个类可以直接解析您的输入字符串，而无需定义格式化模式。|3135233|Instant+instant+=+Instant.parse+(+"2011-08-12T20:17:46.384Z"+)+;|3135234|3135235|​|3135236|📷|atomic|3135237|3135238|3135239|关于java.time|3135240|框架内置于Java8和更高版本中。这些类取代了麻烦的旧legacy日期时间类，如java.util.Date、Calendar和SimpleDateFormat。|3135241|要了解更多信息，请参阅。和搜索堆栈溢出，以获得许多示例和解释。规范为JSR+310。|3135242|现在在maintenance+mode中的项目建议迁移到java.time类。|3135243|您可以直接与数据库交换java.time对象。使用与JDBC+4.2或更高版本兼容的JDBC+driver。不需要字符串，也不需要java.sql.*类。Hibernate+5和JPA2.2支持java.time。|3135244|从哪里获取java.time类？|3135245|3135246|，、、和更高版本-标准Java+API的一部分，具有捆绑的实现。|unordered-list-item|3135247|带来了一些次要的特性和fixes.|3135248|3135249|3135250|3135251|和.|3135252|中的+|3135253|大多数java.time功能已向后移植到Java6和7|3135254|3135255|3135256|+|3135257|更高版本的Android+(26%2B)捆绑了java.time类的实现。|3135258|对于早期的Android+(<26)，一个称为的过程带来了一个subset+of+the+功能，这个功能最初并没有内置到Android中。|3135259|如果去糖化没有提供你需要的东西，项目会让+(上面提到的)适应安卓系统。请参阅.|3135260|3135261|3135262|3135263|3135264|3135265|3135266|entityMap|0|LINK|mutability|MUTABLE|url|https://en.wikipedia.org/wiki/ISO_8601|1|https://en.m.wikipedia.org/wiki/Coordinated_Universal_Time|2|https://en.wikipedia.org/wiki/Coordinated_Universal_Time#Time_zones|3|http://docs.oracle.com/javase/8/docs/api/java/time/package-summary.html|4|5|https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html|6|https://en.wikipedia.org/wiki/Coordinated_Universal_Time|7|https://en.wikipedia.org/wiki/Nanosecond|8|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/78a0c3e764b1420dea7a40b97af61462.png|imageAlt|9|https://en.wikipedia.org/wiki/Legacy_system|10|https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Date.html|11|https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Calendar.html|12|https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/text/SimpleDateFormat.html|13|https://jcp.org/en/jsr/detail?id=310|14|https://en.wikipedia.org/wiki/Maintenance_mode|15|https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/time/package-summary.html|16|http://openjdk.java.net/jeps/170|17|https://en.wikipedia.org/wiki/JDBC_driver|18|https://developer.android.com/studio/write/java8-support-table|19|https://ask.qcloudimg.com/http-save/yehe-900000/220818f37441ef92d7b07438545083cd.png^0|0|0|0|0|D|8|0|0|0|1|H|1|15|1|K|3|1|17|H|2|0|0|0|N|9|3|0|Z|8|4|0|0|7|0|7|5|A|3|6|S|B|7|0|0|0|0|0|1|8|0|0|0|0|14|E|1J|8|1S|G|R|6|9|14|E|A|1J|8|B|1S|G|C|0|Y|7|D|0|3|G|E|S|9|F|0|1T|A|Q|8|G|16|B|H|0|0|0|1|1|0|0|0|0|0|0|0|0|1|1|V|E|I|2|2|1|0|0|0|0|1|J|0|0^^$0|@$1|2|3|4|5|6|7|3W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|3X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|3Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|3Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|40|8|@]|9|@$M|41|N|42|1|43]]|A|$]]|$1|O|3|P|5|6|7|44|8|@$M|45|N|46|Q|R]|$M|47|N|48|Q|R]|$M|49|N|4A|Q|R]]|9|@$M|4B|N|4C|1|4D]|$M|4E|N|4F|1|4G]]|A|$]]|$1|S|3|T|5|6|7|4H|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|4I|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|4J|8|@]|9|@$M|4K|N|4L|1|4M]]|A|$]]|$1|Y|3|Z|5|6|7|4N|8|@]|9|@$M|4O|N|4P|1|4Q]]|A|$]]|$1|10|3|11|5|6|7|4R|8|@$M|4S|N|4T|Q|R]]|9|@$M|4U|N|4V|1|4W]|$M|4X|N|4Y|1|4Z]|$M|50|N|51|1|52]]|A|$]]|$1|12|3|13|5|F|7|53|8|@]|9|@]|A|$G|H]]|$1|14|3|-4|5|6|7|54|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|55|8|@]|9|@]|A|$]]|$1|17|3|18|5|19|7|56|8|@]|9|@$M|57|N|58|1|59]]|A|$]]|$1|1A|3|16|5|6|7|5A|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|5B|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|6|7|5C|8|@]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|5D|8|@$M|5E|N|5F|Q|R]|$M|5G|N|5H|Q|R]|$M|5I|N|5J|Q|R]]|9|@$M|5K|N|5L|1|5M]|$M|5N|N|5O|1|5P]|$M|5Q|N|5R|1|5S]|$M|5T|N|5U|1|5V]]|A|$]]|$1|1G|3|1H|5|6|7|5W|8|@]|9|@$M|5X|N|5Y|1|5Z]]|A|$]]|$1|1I|3|1J|5|6|7|60|8|@]|9|@$M|61|N|62|1|63]|$M|64|N|65|1|66]]|A|$]]|$1|1K|3|1L|5|6|7|67|8|@$M|68|N|69|Q|R]]|9|@$M|6A|N|6B|1|6C]|$M|6D|N|6E|1|6F]]|A|$]]|$1|1M|3|1N|5|6|7|6G|8|@]|9|@]|A|$]]|$1|1O|3|-4|5|6|7|6H|8|@]|9|@]|A|$]]|$1|1P|3|1Q|5|1R|7|6I|8|@]|9|@]|A|$]]|$1|1S|3|1T|5|1R|7|6J|8|@]|9|@]|A|$]]|$1|1U|3|-4|5|6|7|6K|8|@]|9|@]|A|$]]|$1|1V|3|-4|5|6|7|6L|8|@]|9|@]|A|$]]|$1|1W|3|-4|5|6|7|6M|8|@]|9|@]|A|$]]|$1|1X|3|1Y|5|1R|7|6N|8|@]|9|@]|A|$]]|$1|1Z|3|20|5|6|7|6O|8|@]|9|@]|A|$]]|$1|21|3|22|5|1R|7|6P|8|@]|9|@]|A|$]]|$1|23|3|-4|5|6|7|6Q|8|@]|9|@]|A|$]]|$1|24|3|-4|5|6|7|6R|8|@]|9|@]|A|$]]|$1|25|3|26|5|1R|7|6S|8|@]|9|@]|A|$]]|$1|27|3|28|5|1R|7|6T|8|@]|9|@]|A|$]]|$1|29|3|2A|5|1R|7|6U|8|@]|9|@$M|6V|N|6W|1|6X]]|A|$]]|$1|2B|3|2C|5|1R|7|6Y|8|@]|9|@]|A|$]]|$1|2D|3|-4|5|6|7|6Z|8|@]|9|@]|A|$]]|$1|2E|3|-4|5|6|7|70|8|@]|9|@]|A|$]]|$1|2F|3|-4|5|6|7|71|8|@]|9|@]|A|$]]|$1|2G|3|16|5|6|7|72|8|@]|9|@]|A|$]]|$1|2H|3|18|5|19|7|73|8|@]|9|@$M|74|N|75|1|76]]|A|$]]|$1|2I|3|16|5|6|7|77|8|@]|9|@]|A|$]]|$1|2J|3|-4|5|6|7|78|8|@]|9|@]|A|$]]]|2K|$2L|$5|2M|2N|2O|A|$2P|2Q]]|2R|$5|2M|2N|2O|A|$2P|2S]]|2T|$5|2M|2N|2O|A|$2P|2U]]|2V|$5|2M|2N|2O|A|$2P|2W]]|2X|$5|2M|2N|2O|A|$2P|2Q]]|2Y|$5|2M|2N|2O|A|$2P|2Z]]|30|$5|2M|2N|2O|A|$2P|31]]|32|$5|2M|2N|2O|A|$2P|33]]|34|$5|35|2N|36|A|$37|38|39|-4]]|3A|$5|2M|2N|2O|A|$2P|3B]]|3C|$5|2M|2N|2O|A|$2P|3D]]|3E|$5|2M|2N|2O|A|$2P|3F]]|3G|$5|2M|2N|2O|A|$2P|3H]]|3I|$5|2M|2N|2O|A|$2P|3J]]|3K|$5|2M|2N|2O|A|$2P|3L]]|3M|$5|2M|2N|2O|A|$2P|3N]]|3O|$5|2M|2N|2O|A|$2P|3P]]|3Q|$5|2M|2N|2O|A|$2P|3R]]|3S|$5|2M|2N|2O|A|$2P|3T]]|3U|$5|35|2N|36|A|$37|3V|39|-4]]]]

<h1>tl;dr</h1>
Standard <a href="https://en.wikipedia.org/wiki/ISO_8601" rel="noreferrer">ISO 8601</a> format is used by your input string.
<pre><code>Instant.parse ( &quot;2011-08-12T20:17:46.384Z&quot; ) 
</code></pre>
<h1>ISO 8601</h1>
This format is defined by the sensible practical standard, <a href="https://en.wikipedia.org/wiki/ISO_8601" rel="noreferrer">ISO 8601</a>.
The <code>T</code> separates the date portion from the time-of-day portion. The <code>Z</code> on the end means <a href="https://en.m.wikipedia.org/wiki/Coordinated_Universal_Time" rel="noreferrer">UTC</a> (that is, an offset-from-UTC of zero hours-minutes-seconds). The <code>Z</code> is <a href="https://en.wikipedia.org/wiki/Coordinated_Universal_Time#Time_zones" rel="noreferrer">pronounced “Zulu”</a>.
<h1>java.time</h1>
The old date-time classes bundled with the earliest versions of Java have proven to be poorly designed, confusing, and troublesome. Avoid them.
Instead, use the <a href="http://docs.oracle.com/javase/8/docs/api/java/time/package-summary.html" rel="noreferrer">java.time</a> framework built into Java 8 and later. The java.time classes supplant both the old date-time classes and the highly successful Joda-Time library.
The java.time classes use <a href="https://en.wikipedia.org/wiki/ISO_8601" rel="noreferrer">ISO 8601</a> by default when parsing/generating textual representations of date-time values.
The <a href="https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html" rel="noreferrer"><code>Instant</code></a> class represents a moment on the timeline in <a href="https://en.wikipedia.org/wiki/Coordinated_Universal_Time" rel="noreferrer">UTC</a> with a resolution of <a href="https://en.wikipedia.org/wiki/Nanosecond" rel="noreferrer">nanoseconds</a>. That class can directly parse your input string without bothering to define a formatting pattern.
<pre><code>Instant instant = Instant.parse ( &quot;2011-08-12T20:17:46.384Z&quot; ) ;
</code></pre>
<hr />
<a href="https://i.stack.imgur.com/p0TgD.png" rel="noreferrer"><img src="https://i.stack.imgur.com/p0TgD.png" alt="Table of date-time types in Java, both modern and legacy" /></a>
<hr />
<h1>About java.time</h1>
The <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/time/package-summary.html" rel="noreferrer">java.time</a> framework is built into Java 8 and later. These classes supplant the troublesome old <a href="https://en.wikipedia.org/wiki/Legacy_system" rel="noreferrer">legacy</a> date-time classes such as <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Date.html" rel="noreferrer"><code>java.util.Date</code></a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Calendar.html" rel="noreferrer"><code>Calendar</code></a>, &amp; <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/text/SimpleDateFormat.html" rel="noreferrer"><code>SimpleDateFormat</code></a>.
To learn more, see the <a href="http://docs.oracle.com/javase/tutorial/datetime/TOC.html" rel="noreferrer">Oracle Tutorial</a>. And search Stack Overflow for many examples and explanations. Specification is <a href="https://jcp.org/en/jsr/detail?id=310" rel="noreferrer">JSR 310</a>.
The <a href="http://www.joda.org/joda-time/" rel="noreferrer">Joda-Time</a> project, now in <a href="https://en.wikipedia.org/wiki/Maintenance_mode" rel="noreferrer">maintenance mode</a>, advises migration to the <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/time/package-summary.html" rel="noreferrer">java.time</a> classes.
You may exchange java.time objects directly with your database. Use a <a href="https://en.wikipedia.org/wiki/JDBC_driver" rel="noreferrer">JDBC driver</a> compliant with <a href="http://openjdk.java.net/jeps/170" rel="noreferrer">JDBC 4.2</a> or later. No need for strings, no need for <code>java.sql.*</code> classes. Hibernate 5 &amp; JPA 2.2 support java.time.
Where to obtain the java.time classes?
<ul>
<li><a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_8" rel="noreferrer">Java SE 8</a>, <a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_9" rel="noreferrer">Java SE 9</a>, <a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_10" rel="noreferrer">Java SE 10</a>, <a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_11" rel="noreferrer">Java SE 11</a>, and later - Part of the standard Java API with a bundled implementation.
<ul>
<li><a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_9" rel="noreferrer">Java 9</a> brought some minor features and fixes.</li>
</ul>
</li>
<li><a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_6" rel="noreferrer">Java SE 6</a> and <a href="https://en.wikipedia.org/wiki/Java_version_history#Java_SE_7" rel="noreferrer">Java SE 7</a>
<ul>
<li>Most of the java.time functionality is back-ported to Java 6 &amp; 7 in <a href="http://www.threeten.org/threetenbp/" rel="noreferrer">ThreeTen-Backport</a>.</li>
</ul>
</li>
<li><a href="https://en.wikipedia.org/wiki/Android_(operating_system)" rel="noreferrer">Android</a>
<ul>
<li>Later versions of Android (26+) bundle implementations of the java.time classes.</li>
<li>For earlier Android (&lt;26), a process known as <a href="https://developer.android.com/studio/write/java8-support#library-desugaring" rel="noreferrer">API desugaring</a> brings a <a href="https://developer.android.com/studio/write/java8-support-table" rel="noreferrer">subset of the java.time</a> functionality not originally built into Android.
<ul>
<li>If the desugaring does not offer what you need, the <a href="https://github.com/JakeWharton/ThreeTenABP" rel="noreferrer">ThreeTenABP</a> project adapts <a href="http://www.threeten.org/threetenbp/" rel="noreferrer">ThreeTen-Backport</a> (mentioned above) to Android. See <a href="http://stackoverflow.com/q/38922754/642706">How to use ThreeTenABP…</a>.</li>
</ul>
</li>
</ul>
</li>
</ul>
<a href="https://i.stack.imgur.com/Sksw9.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Sksw9.png" alt="Table of which java.time library to use with which version of Java or Android" /></a>

blocks|key|2921248|text|除了第一个答案之外，还有其他方法可以解析它。要解析它，请执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2921249|(1)如果您想获取日期和时间信息，可以将其解析为ZonedDatetime(从Java+8开始)或Date(旧的)对象：|offset|length|style|CODE|BOLD|2921250|//+ZonedDateTime's+default+format+requires+a+zone+ID(like+[Australia/Sydney])+in+the+end.
//+Here,+we+provide+a+format+which+can+parse+the+string+correctly.
DateTimeFormatter+dtf+=+DateTimeFormatter.ISO_DATE_TIME;
ZonedDateTime+zdt+=+ZonedDateTime.parse("2011-08-12T20:17:46.384Z",+dtf);|code-block|syntax|javascript|2921251|或|2921252|//+'T'+is+a+literal.
//+'X'+is+ISO+Zone+Offset[like+%2B01,+-08];+For+UTC,+it+is+interpreted+as+'Z'(Zero)+literal.
String+pattern+=+"yyyy-MM-dd'T'HH:mm:ss.SSSX";

//+since+no+built-in+format,+we+provides+pattern+directly.
DateFormat+df+=+new+SimpleDateFormat(pattern);

Date+myDate+=+df.parse("2011-08-12T20:17:46.384Z");|2921253|(2)如果您不关心日期和时间，只想将信息视为以纳秒为单位的时刻，那么您可以使用Instant|2921254|//+The+ISO+format+without+zone+ID+is+Instant's+default.
//+There+is+no+need+to+pass+any+format.
Instant+ins+=+Instant.parse("2011-08-12T20:17:46.384Z");|2921255|entityMap^0|0|O|D|1D|4|13|6|0|0|0|0|13|7|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@$D|Z|E|10|F|G]|$D|11|E|12|F|G]|$D|13|E|14|F|H]]|9|@]|A|$]]|$1|I|3|J|5|K|7|15|8|@]|9|@]|A|$L|M]]|$1|N|3|O|5|6|7|16|8|@]|9|@]|A|$]]|$1|P|3|Q|5|K|7|17|8|@]|9|@]|A|$L|M]]|$1|R|3|S|5|6|7|18|8|@$D|19|E|1A|F|G]]|9|@]|A|$]]|$1|T|3|U|5|K|7|1B|8|@]|9|@]|A|$L|M]]|$1|V|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|W|$]]

There are other ways to parse it rather than the first answer. To parse it: 
(1) If you want to grab information about date and time, you can parse it to a <code>ZonedDatetime</code>(since Java 8) or <code>Date</code>(old) object:

<pre><code>// ZonedDateTime's default format requires a zone ID(like [Australia/Sydney]) in the end.
// Here, we provide a format which can parse the string correctly.
DateTimeFormatter dtf = DateTimeFormatter.ISO_DATE_TIME;
ZonedDateTime zdt = ZonedDateTime.parse("2011-08-12T20:17:46.384Z", dtf);
</code></pre>

or

<pre><code>// 'T' is a literal.
// 'X' is ISO Zone Offset[like +01, -08]; For UTC, it is interpreted as 'Z'(Zero) literal.
String pattern = "yyyy-MM-dd'T'HH:mm:ss.SSSX";

// since no built-in format, we provides pattern directly.
DateFormat df = new SimpleDateFormat(pattern);

Date myDate = df.parse("2011-08-12T20:17:46.384Z");
</code></pre>

(2) If you don't care the date and time and just want to treat the information as a moment in nanoseconds, then you can use <code>Instant</code>:

<pre><code>// The ISO format without zone ID is Instant's default.
// There is no need to pass any format.
Instant ins = Instant.parse("2011-08-12T20:17:46.384Z");
</code></pre>

blocks|key|245880|text|您可以使用以下示例。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|245881|++++String+date+=+"2011-08-12T20:17:46.384Z";

++++String+inputPattern+=+"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

++++String+outputPattern+=+"yyyy-MM-dd+HH:mm:ss";

++++LocalDateTime+inputDate+=+null;
++++String+outputDate+=+null;


++++DateTimeFormatter+inputFormatter+=+DateTimeFormatter.ofPattern(inputPattern,+Locale.ENGLISH);
++++DateTimeFormatter+outputFormatter+=+DateTimeFormatter.ofPattern(outputPattern,+Locale.ENGLISH);

++++inputDate+=+LocalDateTime.parse(date,+inputFormatter);
++++outputDate+=+outputFormatter.format(inputDate);

++++System.out.println("inputDate:+"+%2B+inputDate);
++++System.out.println("outputDate:+"+%2B+outputDate);|code-block|syntax|javascript|245882|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 use the following example.

<pre><code> String date = "2011-08-12T20:17:46.384Z";

 String inputPattern = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

 String outputPattern = "yyyy-MM-dd HH:mm:ss";

 LocalDateTime inputDate = null;
 String outputDate = null;


 DateTimeFormatter inputFormatter = DateTimeFormatter.ofPattern(inputPattern, Locale.ENGLISH);
 DateTimeFormatter outputFormatter = DateTimeFormatter.ofPattern(outputPattern, Locale.ENGLISH);

 inputDate = LocalDateTime.parse(date, inputFormatter);
 outputDate = outputFormatter.format(inputDate);

 System.out.println("inputDate: " + inputDate);
 System.out.println("outputDate: " + outputDate);
</code></pre>

blocks|key|3135387|text|此技术将java.util.Date转换为UTC格式(或任何其他格式)，然后再转换回来。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3135388|像这样定义一个类：|3135389|import+java.util.Date;

import+org.joda.time.DateTime;
import+org.joda.time.format.DateTimeFormat;
import+org.joda.time.format.DateTimeFormatter;

public+class+UtcUtility+{

public+static+DateTimeFormatter+UTC+=+DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'").withZoneUTC();


public+static+Date+parse(DateTimeFormatter+dateTimeFormatter,+String+date)+{
++++return+dateTimeFormatter.parseDateTime(date).toDate();
}

public+static+String+format(DateTimeFormatter+dateTimeFormatter,+Date+date)+{
++++return+format(dateTimeFormatter,+date.getTime());
}

private+static+String+format(DateTimeFormatter+dateTimeFormatter,+long+timeInMillis)+{
++++DateTime+dateTime+=+new+DateTime(timeInMillis);
++++String+formattedString+=+dateTimeFormatter.print(dateTime);
++++return+formattedString;
}|code-block|syntax|javascript|3135390|}|3135391|然后像这样使用它：|3135392|Date+date+=+format(UTC,+"2020-04-19T00:30:07.000Z")|3135393|或|3135394|String+date+=+parse(UTC,+new+Date())|3135395|如果需要，您还可以定义其他日期格式(不仅仅是UTC)|3135396|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|11|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|12|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|13|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|14|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|V|$]]

This technique translates java.util.Date to UTC format (or any other) and back again.

Define a class like so:

<pre><code>import java.util.Date;

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

public class UtcUtility {

public static DateTimeFormatter UTC = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'").withZoneUTC();


public static Date parse(DateTimeFormatter dateTimeFormatter, String date) {
 return dateTimeFormatter.parseDateTime(date).toDate();
}

public static String format(DateTimeFormatter dateTimeFormatter, Date date) {
 return format(dateTimeFormatter, date.getTime());
}

private static String format(DateTimeFormatter dateTimeFormatter, long timeInMillis) {
 DateTime dateTime = new DateTime(timeInMillis);
 String formattedString = dateTimeFormatter.print(dateTime);
 return formattedString;
}
</code></pre>

}

Then use it like this:

<pre><code>Date date = format(UTC, "2020-04-19T00:30:07.000Z")
</code></pre>

or

<pre><code>String date = parse(UTC, new Date())
</code></pre>

You can also define other date formats if you require (not just UTC)

blocks|key|247623|text|@John-Skeet给了我解决这个问题的线索。作为一名年轻的程序员，这个小问题很容易被忽视，也很难诊断。所以我分享了它，希望它能帮助一些人。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|247624|我的问题是，我想解析以下字符串，限制JSON的时间戳，并将其放入更有用的变量中。但我一直收到错误。|247625|因此，给定以下内容(请注意ofPattern()中的字符串参数；|247626|String+str+=+"20190927T182730.000Z"

LocalDateTime+fin;
fin+=+LocalDateTime.parse(+str,+DateTimeFormatter.ofPattern("yyyyMMdd'T'HHmmss.SSSZ")+);|code-block|syntax|javascript|247627|错误：|247628|Exception+in+thread+"main"+java.time.format.DateTimeParseException:+Text+
'20190927T182730.000Z'+could+not+be+parsed+at+index+19|247629|问题出在哪里？模式末尾的Z需要像“T”一样包装在“Z”中。将"yyyyMMdd'T'HHmmss.SSSZ"更改为"yyyyMMdd'T'HHmmss.SSS'Z'"，它就可以工作了。|offset|length|style|CODE|247630|从模式中全部删除Z也会导致错误。|247631|坦率地说，我希望Java类能预见到这一点。|247632|entityMap^0|0|0|0|0|0|0|U|O|1L|Q|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|15|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|16|8|@$Q|17|R|18|S|T]|$Q|19|R|1A|S|T]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|Z|$]]

@John-Skeet gave me the clue to fix my own issue around this. As a younger programmer this small issue is easy to miss and hard to diagnose. So Im sharing it in the hopes it will help someone. 

My issue was that I wanted to parse the following string contraining a time stamp from a JSON I have no influence over and put it in more useful variables. But I kept getting errors. 

So given the following (pay attention to the string parameter inside ofPattern(); 

<pre><code>String str = "20190927T182730.000Z"

LocalDateTime fin;
fin = LocalDateTime.parse( str, DateTimeFormatter.ofPattern("yyyyMMdd'T'HHmmss.SSSZ") );
</code></pre>

Error:

<pre><code>Exception in thread "main" java.time.format.DateTimeParseException: Text 
'20190927T182730.000Z' could not be parsed at index 19
</code></pre>

The problem? The Z at the end of the Pattern needs to be wrapped in 'Z' just like the 'T' is. Change
<code>"yyyyMMdd'T'HHmmss.SSSZ"</code> to <code>"yyyyMMdd'T'HHmmss.SSS'Z'"</code> and it works. 

Removing the Z from the pattern alltogether also led to errors.

Frankly, I'd expect a Java class to have anticipated this.

blocks|key|3135483|text|如果你们正在寻找Android的解决方案，可以使用以下代码从时间戳字符串中获取纪元秒。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3135484|public+static+long+timestampToEpochSeconds(String+srcTimestamp)+{
++++long+epoch+=+0;

++++try+{
++++++++if+(android.os.Build.VERSION.SDK_INT+>=+android.os.Build.VERSION_CODES.O)+{
++++++++++++Instant+instant+=+Instant.parse(srcTimestamp);
++++++++++++epoch+=+instant.getEpochSecond();
++++++++}+else+{
++++++++++++SimpleDateFormat+sdf+=+new+SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss.SSSSSS'Z'",+Locale.getDefault());
++++++++++++sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
++++++++++++Date+date+=+sdf.parse(srcTimestamp);
++++++++++++if+(date+!=+null)+{
++++++++++++++++epoch+=+date.getTime()+/+1000;
++++++++++++}
++++++++}
++++}+catch+(Exception+e)+{
++++++++e.printStackTrace();
++++}

++++return+epoch;
}|code-block|syntax|javascript|3135485|输入示例:+2019-10-15T05:51:31.537979Z|3135486|示例输出:+1571128673|3135487|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]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you guys are looking for a solution for Android, you can use the following code to get the epoch seconds from the timestamp string.

<pre><code>public static long timestampToEpochSeconds(String srcTimestamp) {
 long epoch = 0;

 try {
 if (android.os.Build.VERSION.SDK_INT &gt;= android.os.Build.VERSION_CODES.O) {
 Instant instant = Instant.parse(srcTimestamp);
 epoch = instant.getEpochSecond();
 } else {
 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss.SSSSSS'Z'", Locale.getDefault());
 sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
 Date date = sdf.parse(srcTimestamp);
 if (date != null) {
 epoch = date.getTime() / 1000;
 }
 }
 } catch (Exception e) {
 e.printStackTrace();
 }

 return epoch;
}
</code></pre>

Sample input: 2019-10-15T05:51:31.537979Z

Sample output: 1571128673

blocks|key|245971|text|在JavaScript中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|245972|let+isoDateTimeString+=+new+Date().toISOString();|code-block|syntax|javascript|245973|描述|offset|length|style|BOLD|245974|"YYYY-MM-DDThh:mm:ss.SSSZ“这样的日期/时间格式是ISO+8601日期/时间格式。|245975|entityMap|0|LINK|mutability|MUTABLE|url|https://en.wikipedia.org/wiki/ISO_8601^0|0|0|0|2|0|11|8|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|11|8|@]|9|@$I|12|J|13|1|14]]|A|$]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

<h1>In JavaScript</h1>
<pre><code>let isoDateTimeString = new Date().toISOString();
</code></pre>
Description
Date/time format like &quot;YYYY-MM-DDThh:mm:ss.SSSZ&quot; is <a href="https://en.wikipedia.org/wiki/ISO_8601" rel="nofollow noreferrer">ISO 8601</a> date/time format.

I have the following date: <code>2011-08-12T20:17:46.384Z</code>. What format is this? I'm trying to parse it with Java 1.4 via <code>DateFormat.getDateInstance().parse(dateStr)</code> and I'm getting

<blockquote>
 java.text.ParseException: Unparseable date: "2011-08-12T20:17:46.384Z"
</blockquote>

I think I should be using <a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/text/SimpleDateFormat.html" rel="noreferrer">SimpleDateFormat</a> for parsing, but I have to know the format string first. All I have for that so far is <code>yyyy-MM-dd</code>, because I don't know what the <code>T</code> means in this string--something time zone-related? This date string is coming from the <code>lcmis:downloadedOn</code> tag shown on <a href="http://www-10.lotus.com/ldd/appdevwiki.nsf/dx/Files_CMIS_download_history_media_type" rel="noreferrer">Files CMIS download history media type</a>.

What is this date format? 2011-08-12T20:17:46.384Z

我有以下日期：2011-08-12T20:17:46.384Z。这是什么格式？我正在尝试通过DateFormat.getDateInstance().parse(dateStr)用Java1.4解析它，我得到了 java.text.ParseException:无法解析的日期："2011-08-12T20:17:46....

问日期格式是什么? 2011-08-12T20:17:46.384Z
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