DateUtils

package com.fengzhi.datetime;

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

import android.annotation.SuppressLint;

@SuppressLint("SimpleDateFormat")
public class DateUtils {

	/**
	 * 
	 * @Title: getYear
	 * @Description: TODO(获取当前日期：年)
	 * @author fyf
	 * @return
	 */
	public static int getYear() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.YEAR);
	}

	/**
	 * 
	 * @Title: getMonthOfYear
	 * @Description: TODO(获取当前日期：月)
	 * @author fyf
	 * @return
	 */
	public static int getMonthOfYear() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.MONTH);
	}

	/**
	 * 
	 * @Title: getDayOfMonth
	 * @Description: TODO(获取当前日期：日)
	 * @author fyf
	 * @return
	 */
	public static int getDayOfMonth() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.DAY_OF_MONTH);
	}

	/**
	 * 
	 * @Title: getHourOfDay
	 * @Description: TODO(获取当前时间：时)
	 * @author fyf
	 * @return
	 */
	public static int getHourOfDay() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.HOUR_OF_DAY);
	}

	/**
	 * 
	 * @Title: getMinute
	 * @Description: TODO(获取当前时间：分)
	 * @author fyf
	 * @return
	 */
	public static int getMinute() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.MINUTE);
	}

	/**
	 * 
	 * @Title: getSecond
	 * @Description: TODO(获取当前时间：秒)
	 * @author fyf
	 * @return
	 */
	public static int getSecond() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.SECOND);
	}

	/**
	 * 
	 * @Title: getMilliSecond
	 * @Description: TODO(获取当前时间：毫秒)
	 * @author fyf
	 * @return
	 */
	public static int getMilliSecond() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.MILLISECOND);
	}

	/**
	 * 
	 * @Title: getDayOfYear
	 * @Description: TODO(获取当前日期属于当年的第几天)
	 * @author fyf
	 * @return
	 */
	public static int getDayOfYear() {
		Calendar calendar = Calendar.getInstance();
		return calendar.get(Calendar.DAY_OF_YEAR);
	}

	/**
	 * 
	 * @Title: getDayOfYearFromString
	 * @Description: TODO(获取该日期是当年的第几天)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static int getDayOfYearFromString(String date) {
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(getYyyyMMddFromString(date));

		return calendar.get(Calendar.DAY_OF_YEAR);
	}

	/**
	 * 
	 * @Title: getDayOfWeekFromString
	 * @Description: TODO(获取该日期是星期几)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static String getDayOfWeekFromString(String date) {
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(getYyyyMMddFromString(date));

		switch (calendar.get(Calendar.DAY_OF_WEEK)) {
		case Calendar.SUNDAY:
			return "星期日";
		case Calendar.MONDAY:
			return "星期一";
		case Calendar.TUESDAY:
			return "星期二";
		case Calendar.WEDNESDAY:
			return "星期三";
		case Calendar.THURSDAY:
			return "星期四";
		case Calendar.FRIDAY:
			return "星期五";
		case Calendar.SATURDAY:
			return "星期六";
		}

		return "";
	}

	/**
	 * 
	 * @Title: getDayOfWeek
	 * @Description: TODO(获取当前日期是本周星期几)
	 * @author fyf
	 * @return
	 */
	public static String getDayOfWeek() {
		Calendar calendar = Calendar.getInstance();

		switch (calendar.get(Calendar.DAY_OF_WEEK)) {
		case Calendar.SUNDAY:
			return "星期日";
		case Calendar.MONDAY:
			return "星期一";
		case Calendar.TUESDAY:
			return "星期二";
		case Calendar.WEDNESDAY:
			return "星期三";
		case Calendar.THURSDAY:
			return "星期四";
		case Calendar.FRIDAY:
			return "星期五";
		case Calendar.SATURDAY:
			return "星期六";
		}

		return "";
	}

	/**
	 * 
	 * @Title: getWeekOfMonth
	 * @Description: TODO(获取当前日期是本月的第几周)
	 * @author fyf
	 * @return
	 */
	public static String getWeekOfMonth() {
		Calendar calendar = Calendar.getInstance();

		switch (calendar.get(Calendar.WEEK_OF_MONTH)) {
		case 1:
			return "第一周";
		case 2:
			return "第二周";
		case 3:
			return "第三周";
		case 4:
			return "第四周";
		case 5:
			return "第五周";
		}

		return "";
	}

	/**
	 * 
	 * @Title: getWeekOfMonthFromeDate
	 * @Description: TODO(获取该日期是当年当月的第几周)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static String getWeekOfMonthFromeDate(String date) {
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(getYyyyMMddFromString(date));

		switch (calendar.get(Calendar.WEEK_OF_MONTH)) {
		case 1:
			return "第一周";
		case 2:
			return "第二周";
		case 3:
			return "第三周";
		case 4:
			return "第四周";
		case 5:
			return "第五周";
		}

		return "";
	}

	/**
	 * 
	 * @Title: getWeekOfYear
	 * @Description: TODO(获取当前日期是当年的第几周)
	 * @author fyf
	 * @return
	 */
	public static String getWeekOfYear() {
		Calendar calendar = Calendar.getInstance();

		return "第" + (calendar.get(Calendar.WEEK_OF_YEAR)) + "周";
	}

	/**
	 * 
	 * @Title: getWeekOfYearFromString
	 * @Description: TODO(获取该日期是当年的第几周)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static String getWeekOfYearFromString(String date) {
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(getYyyyMMddFromString(date));

		return "第" + (calendar.get(Calendar.WEEK_OF_YEAR)) + "周";
	}

	/**
	 * 
	 * @Title: getYyyyMMdd
	 * @Description: TODO(获取当前日期：2015-06-16)
	 * @author fyf
	 * @return
	 */
	public static String getYyyyMMdd() {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		return sdf.format(new Date());
	}

	/**
	 * 
	 * @Title: getYyyyMMddFromDate
	 * @Description: TODO(转换日期格式：2015-06-16)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static String getYyyyMMddFromDate(Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

		if (date == null)
			return getYyyyMMdd();

		return sdf.format(date);
	}

	/**
	 * 
	 * @Title: getYyyyMMddFromString
	 * @Description: TODO(转换日期格式：2015-06-16)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static Date getYyyyMMddFromString(String date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

		if (date == null || "".equals(date))
			date = getYyyyMMdd();

		try {
			return sdf.parse(date);
		} catch (ParseException e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 
	 * @Title: getYmdHms
	 * @Description: TODO(获取当前日期时间：2015-06-16 14:07:06)
	 * @author fyf
	 * @return
	 */
	public static String getYmdHms() {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		return sdf.format(new Date());
	}

	/**
	 * 
	 * @Title: getYmdHmsFromDate
	 * @Description: TODO(转换日期时间格式：2015-06-16 14:07:06)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static String getYmdHmsFromDate(Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

		if (date == null)
			return getYmdHms();

		return sdf.format(date);
	}

	/**
	 * 
	 * @Title: getYmdHmsFromString
	 * @Description: TODO(转换日期时间格式：2015-06-16 14:07:06)
	 * @author fyf
	 * @param date
	 * @return
	 */
	public static Date getYmdHmsFromString(String date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

		if (date == null || "".equals(date))
			date = getYmdHms();

		try {
			return sdf.parse(date);
		} catch (ParseException e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 
	* @Title: getYmdHmsSSS 
	* @Description: TODO(获取当前日期时间：20150616141020101) 
	* @author fyf
	* @return
	 */
	public static String getYmdHmsSSS() {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
		return sdf.format(new Date());
	}

	/**
	 * 
	* @Title: getYmdHmsSSSFromDate 
	* @Description: TODO(转换日期时间格式：20150616141020101)
	* @author fyf
	* @param date
	* @return
	 */
	public static String getYmdHmsSSSFromDate(Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");

		if (date == null)
			return getYmdHmsSSS();

		return sdf.format(date);
	}

	/**
	 * 
	* @Title: getYmdHmsSSSFromString 
	* @Description: TODO(转换日期时间格式：20150616141020101)
	* @author fyf
	* @param date
	* @return
	 */
	public static Date getYmdHmsSSSFromString(String date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");

		if (date == null || "".equals(date))
			date = getYmdHmsSSS();

		try {
			return sdf.parse(date);
		} catch (ParseException e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 
	 * @return yyyy年MM月dd日
	 */
	public static String getYyyy_MM_dd() {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
		return sdf.format(new Date());
	}

	/**
	 * 
	 * @param date
	 * @return yyyy年MM月dd日
	 */
	public static String getYyyy_MM_ddFromDate(Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");

		if (date == null)
			return sdf.format(new Date());

		return sdf.format(date);
	}

	/**
	 * 
	 * @param date
	 * @return yyyy年MM月dd日
	 */
	public static Date getYyyy_MM_ddFromString(String date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");

		if (date == null || "".equals(date))
			date = getYyyy_MM_dd();

		try {
			return sdf.parse(date);
		} catch (ParseException e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 
	 * @return yyyy年MM月dd日 HH时mm分ss秒
	 */
	public static String getYmd_Hms() {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
		return sdf.format(new Date());
	}

	/**
	 * 
	 * @param date
	 * @return yyyy年MM月dd日 HH时mm分ss秒
	 */
	public static String getYmd_HmsFromDate(Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");

		if (date == null)
			return sdf.format(new Date());

		return sdf.format(date);
	}

	/**
	 * 
	 * @param date
	 * @return yyyy年MM月dd日 HH时mm分ss秒
	 */
	public static Date getYmd_HmsFromString(String date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");

		if (date == null || "".equals(date))
			date = getYmd_Hms();

		try {
			return sdf.parse(date);
		} catch (ParseException e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 
	 * @Title: getMondayOfWeek
	 * @Description: TODO(根据日期获取当周的星期一的日期)
	 * @return
	 */
	public static String getMondayDateFromString(String date) {
		// 0:表示本周； 1：表示下周；-1：表示上周
		int n = 0;
		Calendar cal = Calendar.getInstance();
		cal.setTime(getYyyyMMddFromString(date));
		cal.add(Calendar.DATE, n * 7);
		// 想转星期几， Calendar就引用星期几（星期三：Calendar.WEDNESDAY）
		cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);

		return getYyyyMMddFromDate(cal.getTime());
	}

	/**
	 * 
	 * @Title: getMondayOfWeek
	 * @Description: TODO(根据日期获取当周的星期一的日期)
	 * @return
	 */
	public static String getMondayDateFromDate(Date date) {
		// 0:表示本周； 1：表示下周；-1：表示上周
		int n = 0;
		Calendar cal = Calendar.getInstance();

		if (date == null)
			date = new Date();

		cal.setTime(date);
		cal.add(Calendar.DATE, n * 7);
		// 想转星期几， Calendar就引用星期几（星期三：Calendar.WEDNESDAY）
		cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);

		return getYyyyMMddFromDate(cal.getTime());
	}
}