java动态获取节假日工具

方式一：api版

http://tool.bitefu.net/jiari/

https://www.kancloud.cn/xiaoggvip/holiday_free/1683537

https://gitee.com/web/holidays_api

import cn.hutool.core.date.DateUtil;
import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.jtsmartway.zhgsgl.common.redis.service.RedisService;
import com.jtsmartway.zhgsgl.warning.constant.BusinessConstants;
import org.springframework.util.CollectionUtils;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * 节假日工具
 *
 * @version 1.0
 * @date 2022/6/7 15:10
 * @since : JDK 11
 */
public class Holiday {

    private static final String API_URL = "http://tool.bitefu.net/jiari/?d=";

    private static final String WORKDAY = "0";

    private static final String DAY_OFF = "1";

    private static final String HOLIDAY = "2";


    /**
     * 节假日api
     *
     * @param dateStr 日期字符串
     * @return
     */
    private static String get(String dateStr) {
        return HttpUtil.get(API_URL + dateStr);
    }


    /**
     * 是否处于节假日
     *
     * @param dateTimeStr 时间字符串 yyyy-MM-dd
     * @return
     */
    public static boolean isHoliday(String dateTimeStr) {
        return get(dateTimeStr).equals(HOLIDAY);
    }


    /**
     * 获取某年所有节假日信息
     */
    public static List<String> allHoliday(String yearStr) {
        String res = get(yearStr);
        JSONObject jsonObject = JSONUtil.parseObj(res).getJSONObject(yearStr);
        List<String> all = new ArrayList<>();
        Set<String> daySet = jsonObject.keySet();
        for (String s : daySet) {
            all.add(DateUtil.parse(yearStr + s).toString("yyyy-MM-dd"));
        }
        return all;
    }

    /**
     * 缓存某年节假日信息到redis中间件中
     */
    public static void cacheToMiddleware(RedisService service, String year) {
        if (null == service) {
            return;
        }
        List<String> l = allHoliday(year);
        service.setCacheList(BusinessConstants.CacheKey.HOLIDAY + DateUtil.thisYear(), l);
    }

    /**
     * 缓存本年节日信息到redis中间件中
     */
    public static void cacheToMiddleware(RedisService service) {
        cacheToMiddleware(service, String.valueOf(DateUtil.thisYear()));
    }

    /**
     * 根据节日判断是否发送邮件
     *
     * @param flag 是否跳过标志
     * @return 是否发送信息
     */
    public static Boolean isSend(boolean flag, RedisService redisService) {
        if (flag) {
            List<String> holidayList = redisService.getCacheList(BusinessConstants.CacheKey.HOLIDAY + DateUtil.thisYear());
            if (CollectionUtils.isEmpty(holidayList)) {
                Holiday.cacheToMiddleware(redisService);
            }
            boolean b = holidayList.stream().anyMatch(a -> a.equals(DateUtil.today()));
            return !b;
        }
        return true;
    }
}

方式二：手动维护版

https://gitee.com/kanen/weekday-util/blob/master/years/2022.txt