java.text.Parse 异常：无法解析的日期
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java.text.Parse Exception : Unparseable Date
提问by user2133404
I have the following code:
我有以下代码：
String ModifiedDate = "1993-06-08T18:27:02.000Z" ;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
Date ModDate = sdf.parse(ModifiedDate);
I am getting the following exception even though my date format is fine...
即使我的日期格式很好，我也收到以下异常...
java.text.ParseException: Unparseable date: "1993-06-08T18:27:02.000Z"
at java.text.DateFormat.parse(DateFormat.java:337)
采纳答案by Sotirios Delimanolis
The Zpattern latter indicates an RFC 822 time zone. Your string
在Z后者模式表示RFC 822的时区。你的字符串
String ModifiedDate = "1993-06-08T18:27:02.000Z" ;
does not contain such a time zone. It contains a Zliterally.
不包含这样的时区。它包含一个Z字面意思。
You'll want a date pattern, that similarly to the literal T, has a literal Z.
你会想要一个日期模式，类似于文字T，有一个文字Z。
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
If you meant for Zto indicate Zulu time, add that as a timezone when constructing the SimpleDateFormat
如果您打算Z指示祖鲁时间，请在构建时区添加它SimpleDateFormat
sdf.setTimeZone(TimeZone.getTimeZone("Zulu"));;
回答by Basil Bourque
The answer by Sotirios Delimanolisis correct. The Zmeans Zulu time, a zero offset from UTC (+00:00). In other words, not adjusted to any time zone.
Sotirios Delimanolis的回答是正确的。该Z装置祖鲁时间，零从UTC（：00 00）的偏移量。换句话说，没有调整到任何时区。
Joda-Time
乔达时间
FYI, the Joda-Timelibrary make this work much easier, as does the new java.time packagein Java 8.
仅供参考，Joda-Time库使这项工作变得更加容易，Java 8中的新java.time 包也是如此。
The format you are using is defined by the ISO 8601standard. Joda-Time and java.time both parse & generate ISO 8601 strings by default.
您使用的格式由ISO 8601标准定义。Joda-Time 和 java.time 默认都解析和生成 ISO 8601 字符串。
A DateTime in Joda-Time knows its own assigned time zone. So as part of the process of parsing, specify a time zone to adjust.
Joda-Time 中的 DateTime 知道自己分配的时区。因此，作为解析过程的一部分，指定要调整的时区。
DateTimeZone timeZone = DateTimeZone.forID( "Europe/Paris" );
DateTime dateTime = new DateTime( "1993-06-08T18:27:02.000Z", timeZone );
String output = dateTime.toString();
You can keep the DateTime object in Universal Timeif desired.
如果需要，您可以将 DateTime 对象保留在世界时。
DateTime dateTime = new DateTime( "1993-06-08T18:27:02.000Z", DateTimeZone.UTC );
When required by other classes, you can generate a java.util.Date object.
当其他类需要时，您可以生成一个 java.util.Date 对象。
java.util.Date date = dateTime.toDate();
