JAVA判断当前时间是否为节假日、周末、工作日

需求

有这么个需求，需要判断传的这个日期是否为节假日，周末，工作日，然后做剩下的操作。

话不多说，上代码

1.首先需要拿到节假日api

节假日API地址

• 其实这个api里有接口可以直接判断某天是否为周末，节假日，工作日；
• 但是这个接口访问多了会报一个403的错误，也就是请求太多导致的；
• 而我下面的内容是只请求一次全年节假日即可，放到一个集合里，第二次请求判断的时候就可以直接去集合里判断。速度很快！

2.拿到自己适用接口，如下:

参数：
1》year：格式“yyyy”,查询这一年的节假日

https://timor.tech/api/holiday/year

返回数据示例：

{    "code": 0,    "holiday": {        "01-01": {            "holiday": true,            "name": "元旦",            "wage": 3,            "date": "2023-01-01",            "rest": 1        },        "01-02": {            "holiday": true,            "name": "元旦",            "wage": 2,            "date": "2023-01-02",            "rest": 1        },        "01-21": {            "holiday": true,            "name": "除夕",            "wage": 3,            "date": "2023-01-21",            "rest": 2        },        ..........

截图如下

3.拿到项目中，编写成一个HolidayUtil 工具类，代码如下：

import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;import com.bh4q.dict.util.DateUtil;import org.apache.commons.lang.StringUtils;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.net.URL;import java.net.URLConnection;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.*;public class HolidayUtil {    static Map> holiday =new HashMap<>();//假期    static Map> extraWorkDay =new HashMap<>();//调休日    //判断是否为节假日        public static String isWorkingDay(String time) throws ParseException {        Date parse = null;        //为空则返回当前时间        if (StringUtils.isNotBlank(time)){            SimpleDateFormat getYearFormat = new SimpleDateFormat("yyyy-MM-dd");            parse = getYearFormat.parse(time);        }else {            parse = new Date();        }        String newDate  = new SimpleDateFormat("yyyy").format(parse);        //判断key是否有参数年份        if(!holiday.containsKey(newDate)){            getYearHoliday(newDate);        }        //得到日期是星期几        Date date = DateUtil.formatStringToDate(time, false);        Calendar calendar = Calendar.getInstance();        calendar.setTime(date);        int weekday = DateUtil.getDayOfWeek(calendar);        //是否节假日        if(holiday.get(newDate).contains(time)){            return "2";        }else if(extraWorkDay.get(newDate).contains(time)){//是否为调休            return "0";        }else if(weekday == Calendar.SATURDAY || weekday == Calendar.FRIDAY){//是否为周末            return "1";        }else{            return "0";        }    }        public static String getYearHoliday(String date) throws ParseException {        //获取免费api地址        String httpUrl="https://timor.tech/api/holiday/year/"+date;        BufferedReader reader = null;        String result = null;        StringBuffer sbf = new StringBuffer();        try {            URL url = new URL(httpUrl);            URLConnection connection = url.openConnection();            //connection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");            connection.setRequestProperty("User-Agent", "Mozilla/4.76");            //使用Get方式请求数据            //connection.setRequestMethod("GET");            //connection.connect();            InputStream is = connection.getInputStream();            reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));            String strRead = null;            while ((strRead = reader.readLine()) != null) {                sbf.append(strRead);                sbf.append("\r\n");            }            reader.close();            //字符串转json            JSONObject json = JSON.parseObject(sbf.toString());            //根据holiday字段获取jsonObject内容            JSONObject holiday = json.getJSONObject("holiday");            List hoList = new ArrayList<>();            List extraList = new ArrayList<>();            for (Map.Entry entry : holiday.entrySet()) {                String value = entry.getValue().toString();                JSONObject jsonObject = JSONObject.parseObject(value);                String hoBool = jsonObject.getString("holiday");                String extra = jsonObject.getString("date");                //判断不是假期后调休的班                if(hoBool.equals("true")){                    hoList.add(extra);                    HolidayUtil.holiday.put(date,hoList);                }else {                    extraList.add(extra);                    HolidayUtil.extraWorkDay.put(date,extraList);                }            }        } catch (Exception e) {            e.printStackTrace();        }        return result;    }}

4.调用工具类方法

  public static void main(String[] args) {   String date = "2023-07-12";         String yearHoliday = HolidayUtil.isWorkingDay(date);         System.out.println(yearHoliday);    }

打印结果：0

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来源地址：https://blog.csdn.net/m0_50762431/article/details/131585664