教你怎么用Java获取国家法定节假日

<!-- okhttp -->
        <dependency>
            <groupId>com.squareup.okhttp</groupId>
            <artifactId>okhttp</artifactId>
            <version>${okhttp.version}</version>
        </dependency>
 
        <!-- fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>${fastjson.version}</version>
        </dependency>

package com.uiotsoft.daily.task;
 
import com.alibaba.fastjson.JSONObject;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;
 
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.*;
 
/**
 * <p>TestDate 此类用于：</p>
 * <p>@author：hujm</p>
 * <p>@date：2021年04月22日 17:43</p>
 * <p>@remark：</p>
 */
public class TestDate {
 
    public static void main(String[] args) {
        System.out.println(getJjr(2021, 4));
        System.out.println(getMonthWekDay(2021, 4));
        System.out.println(JJR(2021, 4));
 
    }
 
    /**
     * 获取周末和节假日
     *
     * @param year
     * @param month
     * @return
     */
    public static Set<String> JJR(int year, int month) {
        //获取所有的周末
        Set<String> monthWekDay = getMonthWekDay(year, month);
        //http://timor.tech/api/holiday api文档地址
        Map jjr = getJjr(year, month + 1);
        Integer code = (Integer) jjr.get("code");
        if (code != 0) {
            return monthWekDay;
        }
        Map<String, Map<String, Object>> holiday = (Map<String, Map<String, Object>>) jjr.get("holiday");
        Set<String> strings = holiday.keySet();
        for (String str : strings) {
            Map<String, Object> stringObjectMap = holiday.get(str);
            Integer wage = (Integer) stringObjectMap.get("wage");
            String date = (String) stringObjectMap.get("date");
            //筛选掉补班
            if (wage.equals(1)) {
                monthWekDay.remove(date);
            } else {
                monthWekDay.add(date);
            }
        }
        return monthWekDay;
    }
 
    /**
     * 获取节假日不含周末
     *
     * @param year
     * @param month
     * @return
     */
    private static Map getJjr(int year, int month) {
        String url = "http://timor.tech/api/holiday/year/";
        OkHttpClient client = new OkHttpClient();
        Response response;
        //解密数据
        String rsa = null;
        Request request = new Request.Builder()
                .url(url)
                .get()
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .build();
        try {
            response = client.newCall(request).execute();
            rsa = response.body().string();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return JSONObject.parseObject(rsa, Map.class);
    }
 
    /**
     * 获取周末  月从0开始
     *
     * @param year
     * @param mouth
     * @return
     */
    public static Set<String> getMonthWekDay(int year, int mouth) {
        Set<String> dateList = new HashSet<>();
        SimpleDateFormat simdf = new SimpleDateFormat("yyyy-MM-dd");
        Calendar calendar = new GregorianCalendar(year, mouth, 1);
        Calendar endCalendar = new GregorianCalendar(year, mouth, 1);
        endCalendar.add(Calendar.MONTH, 1);
        while (true) {
            int weekday = calendar.get(Calendar.DAY_OF_WEEK);
            if (weekday == 1 || weekday == 7) {
                dateList.add(simdf.format(calendar.getTime()));
            }
            calendar.add(Calendar.DATE, 1);
            if (calendar.getTimeInMillis() >= endCalendar.getTimeInMillis()) {
                break;
            }
        }
        return dateList;
    }
 
}

package com.uiotsoft.daily.task;
 
import cn.hutool.core.date.DateUtil;
import cn.hutool.json.JSONUtil;
import com.alibaba.fastjson.JSONObject;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;
import com.uiotsoft.daily.module.entity.DailyHolidayConfig;
import com.uiotsoft.daily.module.entity.HolidayRawInfo;
import com.uiotsoft.daily.module.service.DailyHolidayConfigService;
import com.uiotsoft.daily.module.service.TaskService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
 
import javax.annotation.Resource;
import java.io.IOException;
import java.util.*;
import java.util.stream.Collectors;
 
/**
 * <p>NoSubmitTask 此类用于：</p>
 * <p>@author：hujm</p>
 * <p>@date：2021年04月16日 17:10</p>
 * <p>@remark：</p>
 */
@Slf4j
@Component
public class NoSubmitTask {
 
    @Resource
    private DailyHolidayConfigService holidayConfigService;
 
    @Value("${syncAddress}")
    private String syncAddress;
 
    @Scheduled(cron = "${syncHolidayDeadline}")
    public void syncHoliday() {
 
        log.info("每年12月28凌晨1点定时同步下一年的节假日信息，同步节假日开始时间 = {}", DateUtil.formatDateTime(new Date()));
 
        String url = syncAddress;
        OkHttpClient client = new OkHttpClient();
        Response response;
        //解密数据
        String rsa = null;
        Request request = new Request.Builder().url(url).get()
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .build();
        try {
            response = client.newCall(request).execute();
            rsa = response.body().string();
        } catch (IOException e) {
            e.printStackTrace();
        }
 
        Map map = JSONObject.parseObject(rsa, Map.class);
        if (map != null) {
            Integer code = (Integer) map.get("code");
            if (code == 0) {
                JSONObject holidayJson = (JSONObject) map.get("holiday");
                String jsonString = holidayJson.toJSONString();
                log.info("获取节假日数据内容为 jsonString = 【{}】", jsonString);
                Set<Map.Entry<String, Object>> entrySet = holidayJson.entrySet();
                List<HolidayRawInfo> rawInfoList = new ArrayList<>();
                for (Map.Entry<String, Object> entry : entrySet) {
                    String key = entry.getKey();
                    Object value = entry.getValue();
                    cn.hutool.json.JSONObject jsonObject = JSONUtil.parseObj(value);
                    HolidayRawInfo holidayRawInfo = JSONUtil.toBean(jsonObject, HolidayRawInfo.class);
                    rawInfoList.add(holidayRawInfo);
                }
                // 定义节假日集合
                List<DailyHolidayConfig> holidayConfigList = new ArrayList<>();
                for (HolidayRawInfo holidayRawInfo : rawInfoList) {
                    DailyHolidayConfig holidayConfig = new DailyHolidayConfig();
                    holidayConfig.setHolidayTarget(holidayRawInfo.getTarget());
                    holidayConfig.setHolidayAfter(holidayRawInfo.getAfter());
                    holidayConfig.setHolidayDate(holidayRawInfo.getDate());
                    holidayConfig.setHolidayName(holidayRawInfo.getName());
                    holidayConfig.setHolidayRest(holidayRawInfo.getRest());
                    holidayConfig.setHolidayWage(holidayRawInfo.getWage());
                    holidayConfig.setCreateTime(new Date());
                    holidayConfigList.add(holidayConfig);
                }
 
                // 根据日期排序升序
                List<DailyHolidayConfig> collect = holidayConfigList.stream().sorted(Comparator.comparing(DailyHolidayConfig::getHolidayDate)).collect(Collectors.toList());
 
                // 批量插入节假日表中
                holidayConfigService.insertBatch(collect);
            } else {
                log.error("E|NoSubmitTask|syncHoliday()|同步节假日信息时，调用节假日网站服务出错！");
            }
        }
 
        log.info("每年12月28凌晨1点定时同步下一年的节假日信息，同步节假日结束时间 = {}", DateUtil.formatDateTime(new Date()));
    }
}