package com.jeeplus.common.utils;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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public class WorkDayUtils {
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public static void main(String[] args) {
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try {
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String strDateStart = "2013-08-01";
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String strDateEnd = "2014-08-31";
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
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Date date_start = sdf.parse(strDateStart);
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Date date_end = sdf.parse(strDateEnd);
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WorkDayUtils app = new WorkDayUtils();
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Calendar cal_start = Calendar.getInstance();
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Calendar cal_end = Calendar.getInstance();
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cal_start.setTime(date_start);
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cal_end.setTime(date_end);
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System.out.println("开始日：" + cal_start.get(Calendar.YEAR) + "-" + (cal_start.get(Calendar.MONTH) + 1)
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+ "-" + cal_start.get(Calendar.DAY_OF_MONTH) + " " + app.getChineseWeek(cal_start));
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System.out.println("结束日：" + cal_end.get(Calendar.YEAR) + "-" + (cal_end.get(Calendar.MONTH) + 1)
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+ "-" + cal_end.get(Calendar.DAY_OF_MONTH) + " " + app.getChineseWeek(cal_end));
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System.out.println("工作日：" + app.getWorkingDay(cal_start, cal_end));
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System.out.println("休息日：" + app.getHolidays(cal_start, cal_end));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* 获取日期之间的天数
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* @param d1
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* @param d2
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* @return
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*/
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public int getDaysBetween(java.util.Calendar d1, java.util.Calendar d2) {
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if (d1.after(d2)) { // swap dates so that d1 is start and d2 is end
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java.util.Calendar swap = d1;
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d1 = d2;
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d2 = swap;
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}
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int days = d2.get(java.util.Calendar.DAY_OF_YEAR)
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- d1.get(java.util.Calendar.DAY_OF_YEAR);
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int y2 = d2.get(java.util.Calendar.YEAR);
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if (d1.get(java.util.Calendar.YEAR) != y2) {
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d1 = (java.util.Calendar) d1.clone();
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do {
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days += d1.getActualMaximum(java.util.Calendar.DAY_OF_YEAR);
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d1.add(java.util.Calendar.YEAR, 1);
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} while (d1.get(java.util.Calendar.YEAR) != y2);
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}
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return days;
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}
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/**
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* 获取工作日
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* @param d1
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* @param d2
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* @return
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*/
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public int getWorkingDay(java.util.Calendar d1, java.util.Calendar d2) {
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int result = -1;
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if (d1.after(d2)) { // swap dates so that d1 is start and d2 is end
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java.util.Calendar swap = d1;
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d1 = d2;
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d2 = swap;
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}
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// int betweendays = getDaysBetween(d1, d2);
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// int charge_date = 0;
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int charge_start_date = 0;// 开始日期的日期偏移量
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int charge_end_date = 0;// 结束日期的日期偏移量
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// 日期不在同一个日期内
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int stmp;
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int etmp;
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stmp = 7 - d1.get(Calendar.DAY_OF_WEEK);
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etmp = 7 - d2.get(Calendar.DAY_OF_WEEK);
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if (stmp != 0 && stmp != 6) {// 开始日期为星期六和星期日时偏移量为0
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charge_start_date = stmp - 1;
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}
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if (etmp != 0 && etmp != 6) {// 结束日期为星期六和星期日时偏移量为0
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charge_end_date = etmp - 1;
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}
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// }
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result = (getDaysBetween(this.getNextMonday(d1), this.getNextMonday(d2)) / 7)
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* 5 + charge_start_date - charge_end_date;
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// System.out.println("charge_start_date>" + charge_start_date);
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// System.out.println("charge_end_date>" + charge_end_date);
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// System.out.println("between day is-->" + betweendays);
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return result;
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}
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/**
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* 获取中文日期
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* @param date
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* @return
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*/
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public String getChineseWeek(Calendar date) {
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final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };
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int dayOfWeek = date.get(Calendar.DAY_OF_WEEK);
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// System.out.println(dayNames[dayOfWeek - 1]);
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return dayNames[dayOfWeek - 1];
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}
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/**
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* 获得日期的下一个星期一的日期
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* @param date
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* @return
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*/
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public Calendar getNextMonday(Calendar date) {
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Calendar result = null;
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result = date;
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do {
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result = (Calendar) result.clone();
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result.add(Calendar.DATE, 1);
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} while (result.get(Calendar.DAY_OF_WEEK) != 2);
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return result;
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}
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/**
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* 获取休息日
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* @param d1
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* @param d2
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* @return
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*/
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public int getHolidays(Calendar d1, Calendar d2) {
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return this.getDaysBetween(d1, d2) - this.getWorkingDay(d1, d2);
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}
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}
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