package com.espeed.reading.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

/*
 * 程序名称:    	EspeedMail_时速邮箱
 * 程序版本:    	V1.0
 * 作    者:    	深圳市科飞时速网络技术有限公司(0755-88843776)
 * 版权所有:    	深圳市科飞时速网络技术有限公司
 * 技术支持:    	Tech@21gmail.com
 * 单元名称:    日期格式化工具类
 * 开始时间:    	2013.09.26
 * 程 序 员:    	谢勇
 * 最后修改:    
 * 备    注:		如需修改请通知程序员    
 */
public class DateFormat {
	private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
	private static SimpleDateFormat sdf2 = new SimpleDateFormat(
			"yyyy-MM-dd HH:mm:ss");

	/** 将字符串转换日期 */
	public static Date dateToString(String str) {

		Date dateNum = null;
		try {
			dateNum = sdf.parse(str);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return dateNum;
	}

	/** 将字符串转换日期 */
	public static Date dateToString2(String str) {
		Date dateNum = null;
		try {
			dateNum = sdf2.parse(str);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return dateNum;
	}

	/** 将日期转换为字符串 */
	public static String simpleDataFormat(Date date) {// yy必须小写，MM是月份，mm是分；HH是24小时制，而hh是12小时制
		String str = sdf.format(date);
		return str;
	}

	/** 给定一个日期型字符串，返回加减n天后的日期型字符串 */
	public static String nDaysAfterOneDateString(String basicDate, int n) {
		// SimpleDateFormat df = new SimpleDateFormat("yyyy年MM月dd日");
		Date tmpDate = null;
		try {
			tmpDate = sdf2.parse(basicDate);
		} catch (Exception e) {
			// 日期型字符串格式错误
		}
		long nDay = (tmpDate.getTime() / (24 * 60 * 60 * 1000) + 1 + n)
				* (24 * 60 * 60 * 1000);
		tmpDate.setTime(nDay);

		return sdf2.format(tmpDate);
	}

	public static String getDateAfter(int day) {
		Calendar now = Calendar.getInstance();
		now.setTime(new Date());
		now.set(Calendar.DATE, now.get(Calendar.DATE) + day);
		return sdf2.format(now.getTime());
	}

	/** 给定一个日期，返回加减n天后的日期 */
	public static Date nDaysAfterOneDate(Date basicDate, int n) {
		long nDay = (basicDate.getTime() / (24 * 60 * 60 * 1000) + 1 + n)
				* (24 * 60 * 60 * 1000);
		basicDate.setTime(nDay);

		return basicDate;
	}

	// 获取当前时间加减后的日期
	public static String lastDays(int n) {
		String resultdate = "";
		try {
			// 获取几天之前的时间
			SimpleDateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd"); // 字符串转换
			Calendar c = Calendar.getInstance();
			c.setTimeInMillis(new Date().getTime());
			c.add(Calendar.DATE, n);// 多少天后的日期
			Date date = new Date(c.getTimeInMillis()); // 将c转换成Date
			resultdate = formatDate.format(date);
		} catch (Exception e) {
			resultdate = "";
			e.printStackTrace();
		}
		return resultdate;
	}

	/** 判断今天星期几 */
	public static int TodayOfWeek() {
		int todayofweek = 0;
		try {
			// 计算此日期是一周中的哪一天
			todayofweek = Calendar.getInstance().get(Calendar.DAY_OF_WEEK) - 1;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return todayofweek;
	}

	/** 判断今天本月第几天 */
	public static int TodayOfMonth() {
		int todayofmonth = 0;
		try {
			todayofmonth = Calendar.getInstance().get(Calendar.DAY_OF_MONTH) - 1;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return todayofmonth;
	}

	// 最近三个月
	public static int FristdayThreeMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy年MM月dd日");
		String fristdayThreeMonth = null;
		int dd = 0;

		Calendar calendar;
		try {
			Date date2 = new Date();
			calendar = Calendar.getInstance();
			calendar.add(Calendar.MONTH, -3);
			calendar.getInstance().set(Calendar.DAY_OF_MONTH, 1);
			fristdayThreeMonth = df.format(calendar.getTime());
			Date date1 = sdf.parse(fristdayThreeMonth);
			dd = (int) ((date2.getTime() - date1.getTime()) / (24 * 60 * 60 * 1000));
		} catch (Exception e) {
			e.printStackTrace();
		}
		return dd;
	}

	// 上月第一天
	public static String FristdayLasttMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		String fristdaylasttmonth = null;
		Calendar calendar;
		try {
			calendar = Calendar.getInstance();
			calendar.add(Calendar.MONTH, -1);
			calendar.set(Calendar.DAY_OF_MONTH, 1);
			fristdaylasttmonth = df.format(calendar.getTime());
		} catch (Exception e) {
			e.printStackTrace();
		}
		return fristdaylasttmonth;
	}

	// 上月最后一天
	public static String LastdayLastMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		String lastdaylastmonth = null;
		Calendar calendar;
		try {
			calendar = Calendar.getInstance();
			calendar.set(Calendar.DAY_OF_MONTH, 1);
			calendar.add(Calendar.DATE, -1);
			lastdaylastmonth = df.format(calendar.getTime());
		} catch (Exception e) {
			e.printStackTrace();
		}
		// //获取上个月最后一天的方法，这个稍微要变通一下，先将日期设置为本月的第一天，然后减去一天就变成了上个月的最后一天了：
		// calendar.set(Calendar.DAY_OF_MONTH, 1);
		// calendar.add(Calendar.DATE, -1);

		return lastdaylastmonth;
	}

	/** 判断日期为星期几,0为星期天,依此类推 */
	public static String dayOfWeek(String strdate) {
		SimpleDateFormat df = new SimpleDateFormat("yyyy年MM月dd日");
		Date date = null;
		try {
			date = df.parse(strdate);
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			System.out.println("字符型转日期有异常");
		}
		// 首先定义一个calendar，必须使用getInstance()进行实例化
		Calendar aCalendar = Calendar.getInstance();
		// 里面野可以直接插入date类型
		aCalendar.setTime(date);
		// 计算此日期是一周中的哪一天
		int x = aCalendar.get(Calendar.DAY_OF_WEEK) - 1;
		String week = "";
		switch (x) {
		case 0:
			week = "星期天";
			break;
		case 1:
			week = "星期一";
			break;
		case 2:
			week = "星期二";
			break;
		case 3:
			week = "星期三";
			break;
		case 4:
			week = "星期四";
			break;
		case 5:
			week = "星期五";
			break;
		case 6:
			week = "星期六";
			break;

		}
		return week;
	}

	/** 计算两个日期相隔的天数 */
	public static int nDaysBetweenTwoDate(Date firstDate, Date secondDate) {
		int nDay = (int) ((secondDate.getTime() - firstDate.getTime()) / (24 * 60 * 60 * 1000));
		return nDay;
	}

	/** 计算两个日期相隔的天数 */
	public static int nDaysBetweenTwoDate(String firstString,
			String secondString) {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		Date firstDate = null;
		Date secondDate = null;
		try {
			firstDate = df.parse(firstString);
			secondDate = df.parse(secondString);
		} catch (Exception e) {
			// 日期型字符串格式错误
		}

		int nDay = (int) ((secondDate.getTime() - firstDate.getTime()) / (24 * 60 * 60 * 1000));

		return nDay;
	}

	/** 某年某月有多少天 */
	public static int yearMonthDay(int year, int month) {
		int day = 0;
		if (((month >= 1) && (month <= 12)) && (year >= 0)) {
			if (month == 2) {
				if ((((year % 4) == 0) && ((year % 100) != 0))
						|| ((year % 400) == 0))
					day = 29;
				else
					day = 28;
			} else {
				if ((month == 1) || (month == 3) || (month == 5)
						|| (month == 7) || (month == 8) || (month == 10)
						|| (month == 12))

					day = 31;
				else
					day = 30;
			}
		}
		return day;
	}

	/** 判断两时间相差的分钟数 */
	public static long minutes(String beginDate, String endDate) {

		Date begin = null;
		Date end = null;
		SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		long minute1 = 0;
		try {
			begin = dfs.parse(beginDate);
			end = dfs.parse(endDate);

			long between = (end.getTime() - begin.getTime()) / 1000;// 除以1000是为了转换成秒
			minute1 = between / 60;

		} catch (Exception e) {
			e.printStackTrace();
		}
		return minute1;

	}

	/** 判断两时间相差的秒数 */
	public static long seconds(String beginDate, String endDate) {

		Date begin = null;
		Date end = null;
		SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		long seconds = 0;
		try {
			begin = dfs.parse(beginDate);
			end = dfs.parse(endDate);

			seconds = (end.getTime() - begin.getTime()) / 1000;// 除以1000是为了转换成秒

		} catch (Exception e) {
			e.printStackTrace();
		}
		return seconds;

	}
	
	/** 判断两时间相差的毫秒数 */
	public static long milliSeconds(String beginDate, String endDate) {
		
		Date begin = null;
		Date end = null;
		SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		long milliSeconds = 0;
		try {
			begin = dfs.parse(beginDate);
			end = dfs.parse(endDate);
			
			milliSeconds = (end.getTime() - begin.getTime());
			
		} catch (Exception e) {
			e.printStackTrace();
		}
		return milliSeconds;
		
	}

	/** 获取当前时间的季度 */
	public static String getQuarter() {
		SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String nowDate = dfs.format(new Date());

		String[] str = nowDate.split("-");
		int nowmonth = Integer.parseInt(str[1]);
		if (nowmonth <= 3) {
			return "第一季度";
		} else if (nowmonth > 3 && nowmonth <= 6) {
			return "第二季度";
		} else if (nowmonth > 6 && nowmonth <= 9) {
			return "第三季度";
		} else {
			return "第四季度";
		}
	}

	/** 获取当前第多少周 */
	public static String getWeekDay() {
		TimeZone zone = TimeZone.getTimeZone("Asia/Shanghai");
		Calendar cal = Calendar.getInstance(zone);
		int c = cal.get(cal.WEEK_OF_YEAR);
		return c + "";
	}

	/** 根据日期获取当前多少周 */
	public static String getWeekDayByDate(String input_date) {
		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
		Date date = null;
		try {
			date = format.parse(input_date);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		Calendar calendar = Calendar.getInstance();
		calendar.setFirstDayOfWeek(Calendar.MONDAY);
		calendar.setTime(date);
		return calendar.get(Calendar.WEEK_OF_YEAR) + "";
	}

	// 时区换算为当前北京时间(参数:1.选择的时间,2.时区)
	// public static String hourdiffer(String newStrTimer,int timeZone) throws
	// Exception{
	// int hour=0;//时区相差的时间(小时)
	// int minutes=0;//时区相差的时间(分钟)
	// String marginTimer="";//各时区差
	// Date tmpDate = null;
	// //时间格式转换
	// newStrTimer=newStrTimer.replace("年", "-");
	// newStrTimer=newStrTimer.replace("月", "-");
	// newStrTimer=newStrTimer.replace("日", " ");
	// newStrTimer=newStrTimer.replace("时", ":");
	// newStrTimer=newStrTimer.replace("分", ":");
	// newStrTimer=newStrTimer.replace("秒", "");
	//
	// switch (timeZone) {
	// case 1://北京时区
	// hour=0;
	// minutes=0;
	// break;
	// case 2://美国时区
	// marginTimer="12";
	// hour=Integer.parseInt(marginTimer);
	// minutes=0;
	// //minutes=Integer.parseInt(marginTimer.split(".")[1]);
	// break;
	// case 3://英国时区
	//
	// break;
	// case 4://北京时区
	//
	// break;
	// case 5://北京时区
	//
	// break;
	// case 6://北京时区
	//
	// break;
	// case 7://北京时区
	//
	// break;
	// case 8://北京时区
	//
	// break;
	// case 9://北京时区
	// break;
	// default:
	// break;
	// }
	// tmpDate = sdf2.parse(newStrTimer);
	// Calendar now = Calendar.getInstance();
	// now.setTime(tmpDate);
	// now.set(Calendar.HOUR, now.get(Calendar.HOUR) + hour);
	// now.set(Calendar.MINUTE, now.get(Calendar.MINUTE) + minutes);
	// SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	// return sdf.format(now.getTime());
	// }

	/** 获取本月的第一天 */
	public static String getFirstDayThisMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		Calendar c = Calendar.getInstance();
		c.add(Calendar.MONTH, 0);
		c.set(Calendar.DAY_OF_MONTH, 1);// 设置为1号,当前日期既为本月第一天
		String first = df.format(c.getTime());
		return first;
	}

	/** 获取本月的最一天 */
	public static String getLastDayThisMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		Calendar ca = Calendar.getInstance();
		ca.set(Calendar.DAY_OF_MONTH,
				ca.getActualMaximum(Calendar.DAY_OF_MONTH));
		String last = df.format(ca.getTime());
		return last;
	}

	/** 获取当前时间 */
	public static String getNowDate() {
		String nowdate = "2000-01-01 01:00:00";
		try {
			SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
			nowdate = df.format(new Date());
		} catch (Exception e) {
			e.printStackTrace();
		}
		return nowdate;
	}

	/** 获得当前日期与本周日相差的天数 */
	private static int getMondayPlus(Date gmtCreate) {
		Calendar cd = Calendar.getInstance();
		cd.setTime(gmtCreate);
		// 获得今天是一周的第几天，星期日是第一天，星期二是第二天......
		int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK) - 1; // 因为按中国礼拜一作为第一天所以这里减1
		if (dayOfWeek == 1) {
			return 0;
		} else {
			return 1 - dayOfWeek;
		}
	}

	/** 获得下周星期一的日期 */
	public static String getNextMonday() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		int mondayPlus = getMondayPlus(new Date());
		GregorianCalendar currentDate = new GregorianCalendar();
		currentDate.add(GregorianCalendar.DATE, mondayPlus + 7);
		Date monday = currentDate.getTime();
		return df.format(monday);
	}

	/** 获得下周星期天的日期 */
	public static String getNextSunday() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		int mondayPlus = getMondayPlus(new Date());
		GregorianCalendar currentDate = new GregorianCalendar();
		currentDate.add(GregorianCalendar.DATE, mondayPlus + 13);
		Date monday = currentDate.getTime();
		return df.format(monday);
	}

	/** 获取下月的第一天 */
	public static String getFirstDayNextMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		Calendar c = Calendar.getInstance();
		c.add(Calendar.MONTH, 1);
		c.set(Calendar.DAY_OF_MONTH, 1);// 设置为1号,当前日期既为本月第一天
		String first = df.format(c.getTime());
		return first;
	}

	/** 获取下月的最一天 */
	public static String getLastDayNextMonth() {
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		Calendar ca = Calendar.getInstance();
		ca.add(Calendar.MONTH, 1);
		ca.set(Calendar.DAY_OF_MONTH,
				ca.getActualMaximum(Calendar.DAY_OF_MONTH));
		String last = df.format(ca.getTime());
		return last;
	}

	public static void main(String[] args) {
		System.out.println(Integer.parseInt("01"));
	}
}