SimpleDateFormat 在特定日期失败
在Java 1.8上，此代码失败了
SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
dateFormat.setLenient(false);
dateFormat.setTimeZone(TimeZone.getTimeZone("America/New_York"));
dateFormat.parse("03/11/2007 02:05:01");
，03:05:01正确解析
On java 1.8 this code fails
SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
dateFormat.setLenient(false);
dateFormat.setTimeZone(TimeZone.getTimeZone("America/New_York"));
dateFormat.parse("03/11/2007 02:05:01");
Interesting, that 03:05:01 parses correctly
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是的，那是因为2007-03-11T02：05：01在美国/new_york时区从未发生过。
The spring-forward daylight saving change occurred at 2007-03-11T07:00:00Z, so anyone watching a time-zone-aware clock would have seen:
You've told the
SimpleDateFormatto handle the input strictly, then given it a date/time that didn't exist, so it's reasonable for it to fail.重要的是，无论您要如何处理这个问题，我都会强烈地鼓励您离开旧版
date/日历/code>/dateformat类型，然后使用java.Time。Yes, that's because 2007-03-11T02:05:01 never occurred in the America/New_York time zone.
The spring-forward daylight saving change occurred at 2007-03-11T07:00:00Z, so anyone watching a time-zone-aware clock would have seen:
You've told the
SimpleDateFormatto handle the input strictly, then given it a date/time that didn't exist, so it's reasonable for it to fail.Importantly, regardless of how you want to handle this, I would strongly encourage you to move off the legacy
Date/Calendar/DateFormattypes, and usejava.timeinstead.