1.将LocalDateTime转为自定义的时间格式的字符串
public static String getDateTimeAsString(LocalDateTime localDateTime, String format) {
DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format);
return localDateTime.format(formatter);
}
2.将long类型的timestamp转为LocalDateTime
public static LocalDateTime getDateTimeOfTimestamp(long timestamp) {
Instant instant = Instant.ofEpochMilli(timestamp);
ZoneId zone = ZoneId.systemDefault();
return LocalDateTime.ofInstant(instant, zone);
}
3.将LocalDateTime转为long类型的timestamp
public static long getTimestampOfDateTime(LocalDateTime localDateTime) {
ZoneId zone = ZoneId.systemDefault();
Instant instant = localDateTime.atZone(zone).toInstant();
return instant.toEpochMilli();
}
4.将某时间字符串转为自定义时间格式的LocalDateTime
public static LocalDateTime parseStringToDateTime(String time, String format) {
DateTimeFormatter df = DateTimeFormatter.ofPattern(format);
return LocalDateTime.parse(time, df);
}
5.时间戳转特定的时间格式
public static String getDateTimeOfTimestamp(long timestamp, String format) {
Instant instant = Instant.ofEpochMilli(timestamp);
ZoneId zone = ZoneId.systemDefault();
LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, zone);
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(format);
return dateTimeFormatter.format(localDateTime);
}
获取时间戳的方式:https://blog.csdn.net/qq_41774102/article/details/126759334csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22126759334%22%2C%22source%22%3A%22qq_41774102%22%7D