/*** <p>Title: main </P>* <p>Description: TODO </P>* @param args* return void 返回类型* throws* date -11-24 上午09:11:47*/public static void main(String[] args) {try {List<String> dateStringList=new ArrayList<>();dateStringList.add("-10-01");dateStringList.add("-10-02");dateStringList.add("-10-03");dateStringList.add("-10-04");dateStringList.add("-10-05");dateStringList.add("-10-06");dateStringList.add("-10-07");List<String> specifiedDateList=new ArrayList<>();specifiedDateList.add("-09-29");specifiedDateList.add("-09-30");initHolidayList(dateStringList,specifiedDateList);DateFormat df = new SimpleDateFormat("yyyy-MM-dd");Calendar ca = Calendar.getInstance();Date d = df.parse("-9-27");ca.setTime(d);//设置当前时间Test1 ct = new Test1();String c = ct.addDateByWorkDay(ca,5);System.out.println(c);} catch ( Exception e) {// TODO: handle exceptione.printStackTrace();}}private static List<Calendar> holidayList = new ArrayList<Calendar>(); //节假日列表private static List<Calendar> workList = new ArrayList<Calendar>(); //指定工作日期/**** <p>Title: addDateByWorkDay </P>* <p>Description: TODO 计算相加day天，并且排除节假日和周末后的日期</P>* @param calendar 当前的日期* @param day 相加天数* @return* return Calendar 返回类型 返回相加day天，并且排除节假日和周末后的日期* throws* date -11-24 上午10:32:55*/public static String addDateByWorkDay(Calendar calendar,int day){try {for (int i = 0; i < day; i++) {calendar.add(Calendar.DAY_OF_MONTH, 1);if(checkHoliday(calendar)){i--;}}} catch (Exception e) {e.printStackTrace();}DateFormat df = new SimpleDateFormat("yyyy-MM-dd");return df.format(calendar.getTime());}/**** <p>Title: checkHoliday </P>* <p>Description: TODO 验证日期是否是节假日</P>* @param calendar 传入需要验证的日期* @return* return boolean 返回类型 返回true是节假日，返回false不是节假日* throws* date -11-24 上午10:13:07*/public static boolean checkHoliday(Calendar calendar) throws Exception{//判断日期是否是指定工作日for (Calendar ca : workList) {if(ca.get(Calendar.MONTH) == calendar.get(Calendar.MONTH) &&ca.get(Calendar.DAY_OF_MONTH) == calendar.get(Calendar.DAY_OF_MONTH)&&ca.get(Calendar.YEAR) == calendar.get(Calendar.YEAR)){return false;}}//判断日期是否是周六周日if(calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY ||calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY){return true;}//判断日期是否是节假日for (Calendar ca : holidayList) {if(ca.get(Calendar.MONTH) == calendar.get(Calendar.MONTH) &&ca.get(Calendar.DAY_OF_MONTH) == calendar.get(Calendar.DAY_OF_MONTH)&&ca.get(Calendar.YEAR) == calendar.get(Calendar.YEAR)){return true;}}return false;}/**** <p>Title: initHolidayList </P>* <p>Description: TODO 把所有节假日放入list，验证前要先执行这个方法</P>* @param date 从数据库查 查出来的格式-05-09* return void 返回类型* throws* date -11-24 上午10:11:35*/public static void initHolidayList(List<String> holidayDateList,List<String> specifiedDateList) {for (String string : holidayDateList) {String[] da = string.split("-");Calendar calendar = Calendar.getInstance();calendar.set(Calendar.YEAR, Integer.valueOf(da[0]));calendar.set(Calendar.MONTH, Integer.valueOf(da[1]) - 1);// 月份比正常小1,0代表一月calendar.set(Calendar.DAY_OF_MONTH, Integer.valueOf(da[2]));holidayList.add(calendar);}for (String string : specifiedDateList) {String[] da = string.split("-");Calendar calendar = Calendar.getInstance();calendar.set(Calendar.YEAR, Integer.valueOf(da[0]));calendar.set(Calendar.MONTH, Integer.valueOf(da[1]) - 1);// 月份比正常小1,0代表一月calendar.set(Calendar.DAY_OF_MONTH, Integer.valueOf(da[2]));workList.add(calendar);}}
initHolidayList(List<String> holidayDateList,List<String> specifiedDateList)我在这个方法里面加了一个指定工作日参数把网上别人提供的优化了一下，节假日和指定工作日要新建一个数据表，去维护信息。
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