Java8時間轉換

===java8中時間的各種轉換(LocalDateTime)===

 

1.將LocalDateTime轉為自定義的時間格式的字符串

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

 

2.將long類型的timestamp轉為LocalDateTime

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

 

3.將LocalDateTime轉為long類型的timestamp

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

 

4.將某時間字符串轉為自定義時間格式的LocalDateTime

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

 

鏈接：https://blog.csdn.net/wsywb111/article/details/79815481