DateTimeParseException-无法在索引0处解析 [英] DateTimeParseException - could not be parsed at index 0

问题描述

我正在尝试解析以下日期"Wed, 26 Feb 2020 03:42:25 -0800"

I'm trying to parse the following date "Wed, 26 Feb 2020 03:42:25 -0800"

String datePattern = "EEE, dd MMM yyyy HH:mm:ss Z";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern(datePattern);
ZonedDateTime zonedDateTime = ZonedDateTime.parse(dateStr, formatter);

但是我收到以下错误消息:

But i get the following error:

java.time.format.DateTimeParseException: Text 'Wed, 26 Feb 2020 03:42:25 -0800'  
could not be parsed at index 0

谢谢

推荐答案

您需要提供使用日期String所使用语言的Locale.否则，格式化程序将采用系统默认的语言环境.

You need to provide a Locale that uses the language used by the date String. Otherwise, the formatter will take the system default locale.

请参见以下示例:

public static void main(String[] arguments) {
    String dt = "Wed, 26 Feb 2020 03:42:25 -0800";
    ZonedDateTime zdt = ZonedDateTime.parse(dt, 
            DateTimeFormatter.ofPattern("EEE, dd MMM yyyy HH:mm:ss Z", Locale.US));
    System.out.println(zdt.format(DateTimeFormatter.ISO_ZONED_DATE_TIME));
}

我的德语系统上的输出:

Output on my German system:

2020-02-26T03:42:25-08:00

如果没有这个Locale(也可能是UK)，我得到的Exception与您得到的相同.

Without this Locale (could be UK, too) I get the same Exception as you have got.

添加
@Lino的要点是:要与国家/地区无关，最好使用Locale.ENGLISH，因为这会保持对语言的尊重，但并不依赖于某个国家或地区的特定Locale.

Addition
Good point given by @Lino: to be country-independent, better use Locale.ENGLISH because that keeps the respect to the language but doesn't depend on a specific Locale of a country or region.

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