在某種場(chǎng)景下我們可能需要獲取當(dāng)前周的開始時(shí)間、結(jié)束時(shí)間，當(dāng)前月的開始時(shí)間、結(jié)束時(shí)間等，給大家分享一個(gè)工具類幫助大家快速去獲取你需要的時(shí)間，便于節(jié)省時(shí)間。文章來源地址http://www.zghlxwxcb.cn/news/detail-771690.html

package org.util;

import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAdjusters;

public class Test {
    public static void main(String[] args) {
        // 獲取當(dāng)天日期
        LocalDate now = LocalDate.now();

        // 當(dāng)天開始時(shí)間
        LocalDateTime todayStart = now.atStartOfDay();
        // 當(dāng)天結(jié)束時(shí)間
        LocalDateTime todayEnd = LocalDateTime.of(now, LocalTime.MAX);

        // 周一
        LocalDate monday = now.with(TemporalAdjusters.previousOrSame(DayOfWeek.MONDAY));
        // 周日
        LocalDate sunday = now.with(TemporalAdjusters.nextOrSame(DayOfWeek.SUNDAY));

        // 本周開始時(shí)間
        LocalDateTime weekStart = monday.atStartOfDay();
        // 本周結(jié)束時(shí)間
        LocalDateTime weekEnd = LocalDateTime.of(sunday, LocalTime.MAX);

        // 本月1號(hào)
        LocalDate firstDayOfMonth = now.with(TemporalAdjusters.firstDayOfMonth());
        // 本月最后一天
        LocalDate lastDayOfMonth = now.with(TemporalAdjusters.lastDayOfMonth());

        // 本月1號(hào)的開始時(shí)間
        LocalDateTime firstDayOfMonthStart = firstDayOfMonth.atStartOfDay();
        // 本月最后一天的最后時(shí)間
        LocalDateTime firstDayOfMonthEnd = LocalDateTime.of(lastDayOfMonth, LocalTime.MAX);

        // 今年第一天
        LocalDate beginTime = LocalDate.now().with(TemporalAdjusters.firstDayOfYear());
        // 今年最后一天
        LocalDate endTiime = LocalDate.now().with(TemporalAdjusters.lastDayOfYear());

        //獲取前一天日期
        LocalDate yesterday2 = LocalDate.now().minusDays(1);

        DateTimeFormatter pattern = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        System.out.println("當(dāng)天開始時(shí)間 = " + todayStart.format(pattern));
        System.out.println("當(dāng)天結(jié)束時(shí)間 = " + todayEnd.format(pattern));
        System.out.println("本周開始時(shí)間 = " + weekStart.format(pattern));
        System.out.println("本周結(jié)束時(shí)間 = " + weekEnd.format(pattern));
        System.out.println("本月開始時(shí)間 = " + firstDayOfMonthStart.format(pattern));
        System.out.println("本月結(jié)束時(shí)間 = " + firstDayOfMonthEnd.format(pattern));
    }
}

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