日期工具类

DateUtils.java

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.util.Date;

public class DateUtils {

    private DateUtils() {
    }

    /**
     * 获取当前时间戳，精确到秒
     *
     * @return
     */
    public static long getCurrSecond() {
        LocalDateTime now = LocalDateTime.now();
        return now.toEpochSecond(ZoneOffset.of("+8"));
    }

    /**
     * 获取当前时间戳，精确到毫秒
     *
     * @return
     */
    public static long getCurrMillisecond() {
        //LocalDateTime now = LocalDateTime.now();
        //return now.toInstant(ZoneOffset.of("+8")).toEpochMilli();
        return System.currentTimeMillis();
    }

    /**
     * 格式化日期
     *
     * @param date    接受时间戳和 Date
     * @param pattern 格式
     * @return
     */
    public static String formDate(Object date, String pattern) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
        return simpleDateFormat.format(date);
    }

    /**
     * 获取指定日期的0分0秒
     *
     * @param date
     * @return
     */
    public static Date get0minAnd0SecDate(Date date) {
        LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault());
        localDateTime = localDateTime.withMinute(0).withSecond(0).withNano(0);
        return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
    }
}