Java实现纪元秒和本地日期时间互换的方法【经典实例】

import java.time.Instant;
import java.time.ZoneId;
import java.time.ZonedDateTime;
/**
 * Created by Frank
 */
public class CurrentDatetime {
  public static void main(String[] args) {
    // 纪元秒和本地日期时间互换
    Instant epochSec = Instant.ofEpochSecond(1000000000L);
    ZoneId zId = ZoneId.systemDefault();
    ZonedDateTime then = ZonedDateTime.ofInstant(epochSec, zId);
    System.out.println("The epoch was a billion seconds old on " + then);
/*
运行输出：

The epoch was a billion seconds old on 2001-09-09T09:46:40+08:00[Asia/Shanghai]
*/
  }
}