轉載來的，在此只當做筆記使用? ?原文請看https://blog.csdn.net/emptoney/article/details/51943515

package com.pts.peoplehui.utils;import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Locale;public class DateUtils {public static String getTodayDateTime() {SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss",Locale.getDefault());return format.format(new Date());}/*** 掉此方法輸入所要轉換的時間輸入例如（"2014年06月14日16時09分00秒"）返回時間戳* * @param time* @return*/public String data(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒",Locale.CHINA);Date date;String times = null;try {date = sdr.parse(time);long l = date.getTime();String stf = String.valueOf(l);times = stf.substring(0, 10);} catch (Exception e) {e.printStackTrace();}return times;}public static String getTodayDateTimes() {SimpleDateFormat format = new SimpleDateFormat("MM月dd日",Locale.getDefault());return format.format(new Date());}/*** 獲取當前時間* * @return*/public static String getCurrentTime_Today() {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");return sdf.format(new java.util.Date());}/*** 調此方法輸入所要轉換的時間輸入例如（"2014-06-14-16-09-00"）返回時間戳* * @param time* @return*/public static String dataOne(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss",Locale.CHINA);Date date;String times = null;try {date = sdr.parse(time);long l = date.getTime();String stf = String.valueOf(l);times = stf.substring(0, 10);} catch (Exception e) {e.printStackTrace();}return times;}public static String getTimestamp(String time, String type) {SimpleDateFormat sdr = new SimpleDateFormat(type, Locale.CHINA);Date date;String times = null;try {date = sdr.parse(time);long l = date.getTime();String stf = String.valueOf(l);times = stf.substring(0, 10);} catch (Exception e) {e.printStackTrace();}return times;}/*** 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014年06月14日16時09分00秒"）* * @param time* @return*/public static String times(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}/*** 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014-06-14 16:09:00"）* * @param time* @return*/public static String timedate(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}/*** 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014年06月14日16:09"）* * @param time* @return*/public static String timet(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日 HH:mm");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}/*** @param time斜杠分開* @return*/public static String timeslash(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy/MM/dd,HH:mm");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}/*** @param time斜杠分開* @return*/public static String timeslashData(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy/MM/dd");@SuppressWarnings("unused")long lcc = Long.valueOf(time); // int i = Integer.parseInt(time);String times = sdr.format(new Date(lcc * 1000L));return times;}/*** @param time斜杠分開* @return*/public static String timeMinute(String time) {SimpleDateFormat sdr = new SimpleDateFormat("HH:mm");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}public static String tim(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyyMMdd HH:mm");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}public static String time(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH:mm");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}// 調用此方法輸入所要轉換的時間戳例如（1402733340）輸出（"2014年06月14日16時09分00秒"）public static String times(long timeStamp) {SimpleDateFormat sdr = new SimpleDateFormat("MM月dd日 # HH:mm");return sdr.format(new Date(timeStamp)).replaceAll("#",getWeek(timeStamp));}private static String getWeek(long timeStamp) {int mydate = 0;String week = null;Calendar cd = Calendar.getInstance();cd.setTime(new Date(timeStamp));mydate = cd.get(Calendar.DAY_OF_WEEK);// 獲取指定日期轉換成星期幾if (mydate == 1) {week = "周日";} else if (mydate == 2) {week = "周一";} else if (mydate == 3) {week = "周二";} else if (mydate == 4) {week = "周三";} else if (mydate == 5) {week = "周四";} else if (mydate == 6) {week = "周五";} else if (mydate == 7) {week = "周六";}return week;}// 并用分割符把時間分成時間數組/*** 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014-06-14-16-09-00"）* * @param time* @return*/public String timesOne(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}public static String timesTwo(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));return times;}/*** 并用分割符把時間分成時間數組* * @param time* @return*/public static String[] timestamp(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");@SuppressWarnings("unused")long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));String[] fenge = times.split("[年月日時分秒]");return fenge;}/*** 根據傳遞的類型格式化時間* * @param str* @param type* 例如：yy-MM-dd* @return*/public static String getDateTimeByMillisecond(String str, String type) {Date date = new Date(Long.valueOf(str));SimpleDateFormat format = new SimpleDateFormat(type);String time = format.format(date);return time;}/*** 分割符把時間分成時間數組* * @param time* @return*/public String[] division(String time) {String[] fenge = time.split("[年月日時分秒]");return fenge;}/*** 輸入時間戳變星期* * @param time* @return*/public static String changeweek(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));Date date = null;int mydate = 0;String week = null;try {date = sdr.parse(times);Calendar cd = Calendar.getInstance();cd.setTime(date);mydate = cd.get(Calendar.DAY_OF_WEEK);// 獲取指定日期轉換成星期幾} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}if (mydate == 1) {week = "星期日";} else if (mydate == 2) {week = "星期一";} else if (mydate == 3) {week = "星期二";} else if (mydate == 4) {week = "星期三";} else if (mydate == 5) {week = "星期四";} else if (mydate == 6) {week = "星期五";} else if (mydate == 7) {week = "星期六";}return week;}/*** 獲取日期和星期　例如：２０１４－１１－１３　１１:００　星期一* * @param time* @param type* @return*/public static String getDateAndWeek(String time, String type) {return getDateTimeByMillisecond(time + "000", type) + " "+ changeweekOne(time);}/*** 輸入時間戳變星期* * @param time* @return*/public static String changeweekOne(String time) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");long lcc = Long.valueOf(time);int i = Integer.parseInt(time);String times = sdr.format(new Date(i * 1000L));Date date = null;int mydate = 0;String week = null;try {date = sdr.parse(times);Calendar cd = Calendar.getInstance();cd.setTime(date);mydate = cd.get(Calendar.DAY_OF_WEEK);// 獲取指定日期轉換成星期幾} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}if (mydate == 1) {week = "星期日";} else if (mydate == 2) {week = "星期一";} else if (mydate == 3) {week = "星期二";} else if (mydate == 4) {week = "星期三";} else if (mydate == 5) {week = "星期四";} else if (mydate == 6) {week = "星期五";} else if (mydate == 7) {week = "星期六";}return week;}/*** 獲取當前時間* * @return*/public static String getCurrentTime() {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");return sdf.format(new java.util.Date());}/*** 輸入日期如（2014年06月14日16時09分00秒）返回（星期數）* * @param time* @return*/public String week(String time) {Date date = null;SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");int mydate = 0;String week = null;try {date = sdr.parse(time);Calendar cd = Calendar.getInstance();cd.setTime(date);mydate = cd.get(Calendar.DAY_OF_WEEK);// 獲取指定日期轉換成星期幾} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}if (mydate == 1) {week = "星期日";} else if (mydate == 2) {week = "星期一";} else if (mydate == 3) {week = "星期二";} else if (mydate == 4) {week = "星期三";} else if (mydate == 5) {week = "星期四";} else if (mydate == 6) {week = "星期五";} else if (mydate == 7) {week = "星期六";}return week;}/*** 輸入日期如（2014-06-14-16-09-00）返回（星期數）* * @param time* @return*/public String weekOne(String time) {Date date = null;SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");int mydate = 0;String week = null;try {date = sdr.parse(time);Calendar cd = Calendar.getInstance();cd.setTime(date);mydate = cd.get(Calendar.DAY_OF_WEEK);// 獲取指定日期轉換成星期幾} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}if (mydate == 1) {week = "星期日";} else if (mydate == 2) {week = "星期一";} else if (mydate == 3) {week = "星期二";} else if (mydate == 4) {week = "星期三";} else if (mydate == 5) {week = "星期四";} else if (mydate == 6) {week = "星期五";} else if (mydate == 7) {week = "星期六";}return week;} }

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