Java8时间转换(LocalDateTime)代码实例

public static String getDateTimeAsString(LocalDateTime localDateTime, String format) {
　　DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format);
　　return localDateTime.format(formatter);
}

public static LocalDateTime getDateTimeOfTimestamp(long timestamp) {
　　Instant instant = Instant.ofEpochMilli(timestamp);
　　ZoneId zone = ZoneId.systemDefault();
　　return LocalDateTime.ofInstant(instant, zone);
}

public static long getTimestampOfDateTime(LocalDateTime localDateTime) {
　　ZoneId zone = ZoneId.systemDefault();
　　Instant instant = localDateTime.atZone(zone).toInstant();
　　return instant.toEpochMilli();
}

public static LocalDateTime parseStringToDateTime(String time, String format) {
　　DateTimeFormatter df = DateTimeFormatter.ofPattern(format);
　　return LocalDateTime.parse(time, df);
}