这篇文章主要介绍了如何使用Java获取国家法定节假日，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。
Java是一门面向对象编程语言，可以编写桌面应用程序、Web应用程序、分布式系统和嵌入式系统应用程序。
<!-- 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;
}
}以上方法可以拿来即用，当然也可以根据自己的需求自定义。
以下是我自己业务需求，将调用API接口获取的节假日信息保存到本地数据库中，如果不感兴趣可以跳过以下内容哦~~~~
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()));
}
}感谢你能够认真阅读完这篇文章，希望小编分享的“如何使用Java获取国家法定节假日”这篇文章对大家有帮助，同时也希望大家多多支持亿速云，关注亿速云行业资讯频道，更多相关知识等着你来学习!
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