使用Java 8 DateTime API解析日期和AMPM

使用Java 8 DateTime API解析日期和AM / PM

您可以通过

DateTimeFormatterBuilder.parseDefaulting

以下方式为不可用字段设置默认值：

DateTimeFormatter formatter = new DateTimeFormatterBuilder()    .appendPattern("dd/MM/yyyy a")    .parseDefaulting(ChronoField.HOUR_OF_AMPM, 0) // this is required    .parseDefaulting(ChronoField.MINUTE_OF_HOUR, 0) // optional, but you can set other value    .parseDefaulting(ChronoField.SECOND_OF_MINUTE, 0) // optional as well    .toFormatter();System.out.println(LocalDateTime.parse("17/02/2015 PM", formatter)); // 2015-02-17T12:00System.out.println(LocalDateTime.parse("17/02/2015 AM", formatter)); // 2015-02-17T00:00