java获取中国节假日

引入fastjson和hutool

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.75</version>
</dependency>
<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.3.0</version>
</dependency>

返回1代表正常休息日，2代表国家法定节假日

import cn.hutool.core.date.DateUtil;
import cn.hutool.http.HttpRequest;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;

import java.util.HashMap;
import java.util.TreeMap;

public class TestHoliday {
    public static void main(String[] args) {
        String yearMonth = DateUtil.format(DateUtil.date(), "yyyyMM");
//        String yearMonth = "202105";
        String url = "https://zhiwei-tech.com/console/api/holiday/" + yearMonth;
        String body = HttpRequest.get(url).setEncodeUrlParams(true).execute().body();
        HashMap<String, String> yearMonthMap =
                JSON.parseObject(body, new TypeReference<HashMap<String, String>>() {
                });
        String monthHoliday = yearMonthMap.get(yearMonth);
        TreeMap<Integer, Integer> treeMap =
                JSON.parseObject(monthHoliday, new TypeReference<TreeMap<Integer, Integer>>() {
                });
        for (Integer key : treeMap.keySet()) {
            System.out.println(key + "----------" + treeMap.get(key));
        }
    }
}

结果

1----------2
2----------2
3----------2
4----------2
5----------2
9----------1
15----------1
16----------1
22----------1
23----------1
29----------1
30----------1