/*** <p>Title: main </P>* <p>Description: TODO </P>* @param args* return void 返回類型* throws* date 2014-11-24 上午09:11:47*/ public static void main(String[] args) {try {List<String> dateStringList=new ArrayList<>();dateStringList.add("2018-10-01");dateStringList.add("2018-10-02");dateStringList.add("2018-10-03");dateStringList.add("2018-10-04");dateStringList.add("2018-10-05");dateStringList.add("2018-10-06");dateStringList.add("2018-10-07");List<String> specifiedDateList=new ArrayList<>();specifiedDateList.add("2018-09-29");specifiedDateList.add("2018-09-30");initHolidayList(dateStringList,specifiedDateList);DateFormat df = new SimpleDateFormat("yyyy-MM-dd");Calendar ca = Calendar.getInstance();Date d = df.parse("2018-9-27");ca.setTime(d);//設置當前時間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>(); //節(jié)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 計算相加day天，并且排除節(jié)假日和周末后的日期</P>* @param calendar 當前的日期* @param day 相加天數* @return* return Calendar 返回類型 返回相加day天，并且排除節(jié)假日和周末后的日期* throws* date 2014-11-24 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 驗證日期是否是節(jié)假日</P>* @param calendar 傳入需要驗證的日期* @return* return boolean 返回類型 返回true是節(jié)假日，返回false不是節(jié)假日* throws* date 2014-11-24 上午10:13:07*/ public static boolean checkHoliday(Calendar calendar) throws Exception{//判斷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;}}//判斷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;}//判斷日期是否是節(jié)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 把所有節(jié)假日放入list，驗證前要先執(zhí)行這個方法</P>* @param date 從數據庫查 查出來的格式2014-05-09* return void 返回類型* throws* date 2014-11-24 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) 我在這個方法里面加了一個指定工作日參數把網上別人提供的優(yōu)化了一下，節(jié)假日和指定工作日要新建一個數據表，去維護信息。

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