Test.java

package com.viontech.keliu;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUtil;

import java.util.Date;

/**
 * Created with IntelliJ IDEA.
 *
 * @author: zhuhai
 * Date: 2023-03-28
 * Time: 10:57
 */
public class Test {

    public static void main(String[] args) {

        DateTime dateTime = DateUtil.beginOfHour(new Date());
        System.out.println(dateTime);
        System.out.println(DateUtil.hour(new Date(), true));
        System.out.println(DateUtil.dayOfMonth(new Date()));
        System.out.println(DateUtil.dayOfWeek(new Date()));
        System.out.println(DateUtil.dayOfYear(new Date()));

    }


}