Calendar转各种时间类型java

最新推荐文章于 2024-08-27 20:33:56 发布

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这些方法展示了如何将`Calendar`对象转换为`Instant`、`LocalDateTime`、`ZonedDateTime`、`Date`和`Timestamp`。它们使用了Java的内置API，如`toInstant()`、`ofInstant()`和`getTime()`，并且考虑了系统默认的时区。

//Calendar转Instant
public static Instant convertCalTOIns(Calendar calendar) {
    Instant instant = calendar.toInstant();
    return instant;
}
//Calendar转LocalDateTime
public static LocalDateTime convertCalTOLDT(Calendar calendar) {
    LocalDateTime calendarLocalDateTime = LocalDateTime.ofInstant(calendar.toInstant(), ZoneOffset.systemDefault());
    return calendarLocalDateTime;
}

//Calendar转ZonedDateTime
public static ZonedDateTime convertCalTOZon(Calendar calendar) {
    ZonedDateTime calendarZonedDateTime = ZonedDateTime.ofInstant(calendar.toInstant(), ZoneId.systemDefault());
    return calendarZonedDateTime;
}

//Calendar转Date
public static Date convertCalTOD(Calendar calendar) {
    Date calendarDate = calendar.getTime();
    return calendarDate;
}

//Calendar转Timestamp
public static Timestamp convertCalTOTimpStamp(Calendar calendar) {
    Timestamp calendarTimestamp = new Timestamp(calendar.getTimeInMillis());
    return calendarTimestamp;
}