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.*;/** * @Author xiaoliu * @Date 2023/7/6 14:44 * @Version 1.0 * 判断今天是工作日/周末/节假日 工具类 * //0 上班 1周末 2节假日 */public class HolidayUtil {static Map<String,List<String>> holiday =new HashMap<>();//假期static Map<String,List<String>> extraWorkDay =new HashMap<>();//调休日//判断是否为节假日/** * * @param time 日期参数 格式‘yyyy-MM-dd’，不传参则默认当前日期 * @return */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";}}/** * * @param date 日期参数 格式‘yyyy’，不传参则默认当前日期 * @return */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jsonJSONObject 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<String, Object> 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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