在編寫代碼中，會經經常使用到時間Date這個類，小編整理了一些經常使用的時間工具類。供大家參考。

import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.TimeZone;/*** 日期工具類*/ public class DateUtils {/*** 獲取格林威治時間(1970年至今的秒數)*/public static long getGMTime1() {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");sdf.setTimeZone(TimeZone.getTimeZone("Etc/Greenwich"));String format = sdf.format(new Date());SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");Date gmDate = null;try {gmDate = sdf1.parse(format);} catch (ParseException e) {e.printStackTrace();}return gmDate.getTime() / 1000;}/*** 獲取格林威治時間 即1970年至今的秒數*/public static long getGMTime2() {int round = (int) (System.currentTimeMillis() / 1000);return round;}/*** 獲取時間HH:mm:ss** @return*/public static String getCurrentTime() {String time = null;SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");String date = sdf.format(new Date());//"\\s"以空格截斷String[] split = date.split("\\s");if (split.length > 1) {time = split[1];}return time;}/*** 獲取當前時間的年月日時分秒* @return*/public static String current() {Calendar c = Calendar.getInstance();int year = c.get(Calendar.YEAR);int month = c.get(Calendar.MONTH) + 1;int day = c.get(Calendar.DAY_OF_MONTH);int hour = c.get(Calendar.HOUR_OF_DAY);int minute = c.get(Calendar.MINUTE);int second = c.get(Calendar.SECOND);return year + "年" + month + "月" + day + "日" + hour + "時" + minute + "分" + second + "秒";}/*** 得到昨天的日期** @return*/public static String getYesterdayDate() {Calendar calendar = Calendar.getInstance();calendar.add(Calendar.DATE, -1);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");String yestoday = sdf.format(calendar.getTime());return yestoday;}/*** 得到今天的日期** @return*/public static String getTodayDate() {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");String date = sdf.format(new Date());return date;}/*** 得到明天的日期** @return*/public static String getTomorrowDate() {Calendar calendar = Calendar.getInstance();calendar.add(Calendar.DATE, 1);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");String tomorrow = sdf.format(calendar.getTime());return tomorrow;}/*** 時間轉化為時間格式** @param timeStamp* @return*/public static String timeStampToStr(long timeStamp) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");String date = sdf.format(timeStamp * 1000);return date;}/*** 時間轉化為時間格式** @param timeStamp* @return*/public static String timeStampToStr1(long timeStamp) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");String date = sdf.format(timeStamp * 1000);return date;}/*** 時間轉化為時間(幾點)** @param time* @return*/public static String timeStampToTime(long time) {SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");String date = sdf.format(time * 1000);return date;}/*** 將日期格式轉化為時間(秒數)** @param time* @return*/public static long getStringToDate(String time) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");Date date = new Date();try {date = sdf.parse(time);} catch (ParseException e) {e.printStackTrace();}return date.getTime() / 1000;}/*** 將日期格式轉化為時間(秒數)** @param time* @return*/public static long getString2Date(String time) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");Date date = new Date();try {date = sdf.parse(time);} catch (ParseException e) {e.printStackTrace();}return date.getTime() / 1000;}/*** 推斷是否大于當前時間** @param time* @return*/public static boolean judgeCurrTime(String time) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");Date date = new Date();try {date = sdf.parse(time);long t = date.getTime();long round = System.currentTimeMillis();if (t - round > 0) {return true;} else {return false;}} catch (Exception e) {e.printStackTrace();}return false;}/*** 推斷是否大于當前時間** @param time* @return*/public static boolean judgeCurrTime(long time) {long round = System.currentTimeMillis();if (time - round > 0) {return true;} else {return false;}}/*** 比較后面的時間是否大于前面的時間** @param* @return*/public static boolean judgeTime2Time(String time1, String time2) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");try {//轉化為時間Date date1 = sdf.parse(time1);Date date2 = sdf.parse(time2);//獲取秒數作比較long l1 = date1.getTime() / 1000;long l2 = date2.getTime() / 1000;if (l2 - l1 > 0) {return true;} else {return false;}} catch (ParseException e) {e.printStackTrace();}return false;}/*** 得到日期 yyyy-MM-dd** @param time* @return*/public static String formatDate(long time) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");String date = sdf.format(time * 1000);return date;}/*** 得到時間 HH:mm:ss** @param timeStamp* @return*/public static String getTime(long timeStamp) {String time = null;SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");String date = sdf.format(timeStamp * 1000);String[] split = date.split("\\s");if (split.length > 1) {time = split[1];}return time;}/*** 將一個時間轉換成提示性時間字符串，(多少分鐘)** @param timeStamp* @return*/public static String timeStampToFormat(long timeStamp) {long curTime = System.currentTimeMillis() / (long) 1000;long time = curTime - timeStamp;return time / 60 + "";}/*** 獲得當前時間差** @param timeStamp* @return*/public static int nowCurrentTime(long timeStamp) {long curTime = System.currentTimeMillis() / (long) 1000;long time = timeStamp - curTime;return (int) time;}/*** 獲取當前的時 -->flag==true* 獲取當前的分 -->flag==false** @return*/public static String nowCurrentPoint(boolean flag) {SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");String date = sdf.format(System.currentTimeMillis());String[] split = date.split(":");String hour = null;String minute = null;if (flag) {if (split.length > 1) {hour = split[0];return hour;}} else {if (split.length > 1) {minute = split[1];return minute;}}return null;}/*** 將標準時間格式HH:mm:ss化為當前的時間差值** @param str* @return*/public static String StandardFormatStr(String str) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");try {Date d = sdf.parse(str);long timeStamp = d.getTime();long curTime = System.currentTimeMillis() / (long) 1000;long time = curTime - timeStamp / 1000;return time / 60 + "";} catch (ParseException e) {e.printStackTrace();}return null;}/*** 將一個時間轉換成提示性時間字符串，如剛剛，1秒前** @param timeStamp* @return*/public static String convertTimeToFormat(long timeStamp) {long curTime = System.currentTimeMillis() / (long) 1000;long time = curTime - timeStamp;if (time < 60 && time >= 0) {return "剛剛";} else if (time >= 60 && time < 3600) {return time / 60 + "分鐘前";} else if (time >= 3600 && time < 3600 * 24) {return time / 3600 + "小時前";} else if (time >= 3600 * 24 && time < 3600 * 24 * 30) {return time / 3600 / 24 + "天前";} else if (time >= 3600 * 24 * 30 && time < 3600 * 24 * 30 * 12) {return time / 3600 / 24 / 30 + "個月前";} else if (time >= 3600 * 24 * 30 * 12) {return time / 3600 / 24 / 30 / 12 + "年前";} else {return "剛剛";}}/*** 日期變量轉成相應的星期字符串** @param date* @return*/public static final int WEEKDAYS = 7;//星期字符數組public static String[] WEEK = {"周日", "周一", "周二", "周三","周四", "周五", "周六"};public static String DateToWeek(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);int dayIndex = calendar.get(Calendar.DAY_OF_WEEK);if (dayIndex < 1 || dayIndex > WEEKDAYS) {return null;}return WEEK[dayIndex - 1];}}

轉載于:https://www.cnblogs.com/blfbuaa/p/7283088.html

總結

以上是生活随笔為你收集整理的Android经常使用工具类DateUtils（二）的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。