LocalDate、LocalDateTime與timestamp、Date的轉換

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        <h4>1.LocalDate轉Date</h4>

LocalDate nowLocalDate = LocalDate.now();
Date date = Date.from(nowLocalDate.atStartOfDay(ZoneId.systemDefault()).toInstant());

2.LocalDateTime轉Date

LocalDateTime localDateTime = LocalDateTime.now();
Date date = Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());

3.Date轉LocalDateTime(LocalDate)

Date date = new Date();
LocalDateTime localDateTime = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime();
LocalDate localDate = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();

4.LocalDate轉時間戳

LocalDate localDate = LocalDate.now();
long timestamp = localDate.atStartOfDay(ZoneId.systemDefault()).toInstant().toEpochMilli();

5.LocalDateTime轉時間戳

LocalDateTime localDateTime = LocalDateTime.now();
long timestamp = localDateTime.toInstant(ZoneOffset.ofHours(8)).toEpochMilli();

6.時間戳轉LocalDateTime(LocalDate)

long timestamp = System.currentTimeMillis();
LocalDate localDate = Instant.ofEpochMilli(timestamp).atZone(ZoneId.systemDefault()).toLocalDate();
LocalDateTime localDateTime = Instant.ofEpochMilli(timestamp).atZone(ZoneId.systemDefault()).toLocalDateTime();

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原文地址：https://www.jianshu.com/p/b4629857fc6f