仅从时间戳中获取日期

This is my Below function in which I am passing timestamp, I need only the date in return from the timestamp not the Hours and Second. With the below code I am getting-

private String toDate(long timestamp) {
        Date date = new Date (timestamp * 1000);
        return DateFormat.getInstance().format(date).toString();
}

这是我得到的输出.

11/4/01 11:27 PM

但我只需要这样的日期

2001-11-04

有什么建议吗?

推荐答案

改用 SimpleDateFormat:

private String toDate(long timestamp) {
    Date date = new Date(timestamp * 1000);
    return new SimpleDateFormat("yyyy-MM-dd").format(date);
}

private String toDate(long timestamp) {
    LocalDate date = Instant.ofEpochMilli(timestamp * 1000).atZone(ZoneId.systemDefault()).toLocalDate();
    return date.format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
}