java新特性處理時間工具類
package cn.com.hongyitech.accountsystem.utils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.util.Date;
/**
* @Description: 新特性的時間處理工具類
* @Author: hl
* @CreateDate: 2019/1/7 9:33
* @UpdateUser: hl
* @UpdateDate: 2019/1/7 9:33
* @UpdateRemark: 修改內容
* @Version: 1.0
* 適用jdk 8及以上版本
*/
public class DateUtil {
/**
* 根據傳入的日期獲取字串形式的年月日
* date--->【yyyy-mm-dd】
*
* @return
* @throws
* @author hl
* @date 2019/1/7 9:34
*/
public static String dateToYMD(Date date) {
Instant instant = date.toInstant();
ZoneId zone = ZoneId.systemDefault();
LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, zone);
LocalDate localDate = localDateTime.toLocalDate();
return localDate.toString();
}
/**
* 根據傳入的日期格式化成需要的樣式
*
* @return yyyy-MM-dd HH:mm:ss
* @throws
* @author hl
* @date 2019/1/7 9:46
*/
public static String dateToYMDHMS(Date date) {
Instant instant = date.toInstant();
ZoneId zone = ZoneId.systemDefault();
LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, zone);
DateTimeFormatter dateTimeFormater = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return dateTimeFormater.format(localDateTime);
}
/**
* 根據傳入的日期格式化成需要的樣式
*
* @return yyyy年MM月dd日hh時mm分ss秒
* @throws
* @author hl
* @date 2019/1/7 9:49
*/
public static String dateToYMDhms(Date date) {
Instant instant = date.toInstant();
ZoneId zone = ZoneId.systemDefault();
LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, zone);
DateTimeFormatter dateTimeFormater = DateTimeFormatter.ofPattern("yyyy年MM月dd日HH時mm分ss秒");
return dateTimeFormater.format(localDateTime);
}
public static String date2YMDhms(Date date) {
return date2YMDhmsss(date);
}
/**
* 根據傳入的日期轉成帶毫秒值的字串格式
*
* @return yyyyMMddhhmmssSSS
* @throws
* @author hl
* @date 2019/1/7 9:52
*/
public static String date2YMDhmsss(Date date) {
Instant instant = date.toInstant();
ZoneId zone = ZoneId.systemDefault();
LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, zone);
DateTimeFormatter dateTimeFormater = DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS");
return dateTimeFormater.format(localDateTime);
}
/**
* 字串形式日期轉換成標準日期 String --> Date "yyyy-MM-dd"-->yyyy-MM-dd
*
* @return
* @throws
* @author hl
* @date 2019/1/7 9:55
*/
public static LocalDate YMDToDate(String date) {
return LocalDate.parse(date, DateTimeFormatter.ofPattern("yyyy-MM-dd"));
}
/**
* 字串形式日期轉換成標準日期 String --> Date "yyyy-MM-dd HH:mm:ss"-->yyyy-MM-dd HH:mm:ss
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:24
*/
public static LocalDateTime YMDHMSToDate(String date) {
DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return LocalDateTime.parse(date, df);
}
/**
* Date轉LocalDateTime
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:35
*/
public static LocalDateTime DateToLocalDateTime(Date date) {
Instant instant = date.toInstant();
ZoneId zone = ZoneId.systemDefault();
return LocalDateTime.ofInstant(instant, zone);
}
/**
* LocalDateTime轉Date
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:35
*/
public static Date DateTime2Date(LocalDateTime localDateTime) {
ZoneId zone = ZoneId.systemDefault();
Instant instant = localDateTime.atZone(zone).toInstant();
return Date.from(instant);
}
/**
* LocalDateTime轉LocalDate
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:40
*/
public static LocalDate LocalDateTimeToLocalDate(LocalDateTime localDateTime) {
return localDateTime.toLocalDate();
}
/**
* 獲取當前日期的年
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:48
*/
public static String getTheYear() {
return Integer.toString(LocalDate.now().getYear());
}
/**
* 字串轉LocalDateTime
* 比如yyyy-mm-dd HH:mm:ss 轉LocalDateTime
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:55
*/
public static LocalDateTime localDateTimeParse(String time, String pattern) {
DateTimeFormatter df = DateTimeFormatter.ofPattern(pattern);
return LocalDateTime.parse(time, df);
}
/**
* 判斷兩個時間之間的間隔分鐘數是否大於某個值,大於返回true
* 時間格式必須是yyyy-mm-dd HH:mm:ss
*
* @return
* @throws
* @author hl
* @date 2019/1/7 10:50
*/
public static boolean checkBwintervalNumberMinBegTmAndEndTm(String begTm, String endTm, int intervalNumber) {
Long minutesBetween = getMinutesBetween(begTm, endTm);
Long intervalNumberLong = new Long(intervalNumber);
return minutesBetween.longValue() >= intervalNumberLong.longValue() ? true : false;
}
/**
* 起始時間與結束時間間隔不能少於40分鐘
*
* @return 開始+40分鐘<結束返回true
* @throws
* @author hl
* @date 2019/1/7 11:34
*/
public static boolean checkBw40MinBegTmAndEndTm(String begTm, String endTm) {
return checkBwintervalNumberMinBegTmAndEndTm(begTm, endTm, 40);
}
/**
* 判斷兩個字串時間之間相隔的分鐘數,如果為負數，說明前面的時間比後面的時間要晚
* 時間格式必須是yyyy-mm-dd HH:mm:ss
*
* @return
* @throws
* @author hl
* @date 2019/1/7 11:01
*/
public static Long getMinutesBetween(String begTm, String endTm) {
LocalDateTime start = localDateTimeParse(begTm, "yyyy-MM-dd HH:mm:ss");
LocalDateTime end = localDateTimeParse(endTm, "yyyy-MM-dd HH:mm:ss");
Duration between = Duration.between(start, end);
return between.toMinutes();//相差分鐘數
}
/**
* 比較兩個時間的大小
* 時間格式必須是yyyy-mm-dd HH:mm:ss
* @author hl
* @return 開始<結束返回 true
*/
public static boolean checkBegTmAndEndTm(String begTm, String endTm) {
LocalDateTime start = localDateTimeParse(begTm, "yyyy-MM-dd HH:mm:ss");
LocalDateTime end = localDateTimeParse(endTm, "yyyy-MM-dd HH:mm:ss");
return start.compareTo(end) < 0 ? true : false;
}
/**
* 獲取指定日期後一星期的字串格式日期
*
* @return
* @throws
* @author hl
* @date 2019/1/7 12:02
*/
public static String getAfterWeekDateYMDHMS(Date date) {
LocalDateTime localDateTime = DateToLocalDateTime(date);
LocalDateTime AfterWeek = localDateTime.plusDays(7);
return localDateTime2YMDHMS(AfterWeek);
}
/**
* localDateTime2YMDHMS
* 返回的格式為 yyyy-MM-dd HH:mm:ss
*
* @return
* @throws
* @author hl
* @date 2019/1/7 12:04
*/
public static String localDateTime2YMDHMS(LocalDateTime localDateTime) {
DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return df.format(localDateTime);
}
/**
* 計算兩個日期之間的間隔天數,只取整數部分
* 時間格式必須是yyyy-mm-dd HH:mm:ss
*
* @return
* @throws
* @author hl
* @date 2019/1/7 11:40
*/
public static int checkDaysBegTmAndEndTm(String begTm, String endTm) {
LocalDateTime start = localDateTimeParse(begTm, "yyyy-MM-dd HH:mm:ss");
LocalDateTime end = localDateTimeParse(endTm, "yyyy-MM-dd HH:mm:ss");
Duration between = Duration.between(start, end);
int betweenDays = (int) between.toDays();
return Math.abs(betweenDays);
}
/**
* 獲取兩個時間的時間差（小時）
*
* @return
* @throws
* @author hl
* @date 2019/1/7 13:48
*/
public static int getHourFromTwoTime(String begTm, String endTm) {
LocalDateTime start = localDateTimeParse(begTm, "yyyy-MM-dd HH:mm:ss");
LocalDateTime end = localDateTimeParse(endTm, "yyyy-MM-dd HH:mm:ss");
Duration between = Duration.between(start, end);
int betweenDays = (int) between.toHours();
return Math.abs(betweenDays);
}
/**
* 返回指定時間的零時零分零秒的時間
*
* @param date
* @return yyyy-MM-dd 00:00:00
*/
public static String getBeforOneDateYMDHMS(Date date) {
String str = dateToYMD(date);
LocalDate localDate = LocalDate.parse(str);
LocalDateTime localDateTime = localDate.atStartOfDay();
DateTimeFormatter dateTimeFormater = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return dateTimeFormater.format(localDateTime);
}
/**
* 返回指定時間的23點59分59秒
*
* @param date
* @return yyyy-MM-dd 00:00:00
*/
public static String getEndOneDateYMDHMS(Date date) {
String str = dateToYMD(date);
LocalDate localDate = LocalDate.parse(str);
LocalDateTime localDateTime = localDate.atStartOfDay();
localDateTime = localDateTime.plusHours(23);
localDateTime = localDateTime.plusMinutes(59);
localDateTime = localDateTime.plusSeconds(59);
DateTimeFormatter dateTimeFormater = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return dateTimeFormater.format(localDateTime);
}
/**
* 當前時間與begTm的前十分鐘的大小
*
* @return 兩個時間相隔的毫秒數
* @throws
* @author hl
* @date 2019/1/7 12:47
*/
public static long checkDaysBeforeTenMinuteCurrTmAndBegTm(String toDate, String begTm) {
LocalDateTime localDateTime = localDateTimeParse(begTm, "yyyy-MM-dd HH:mm:ss");
LocalDateTime toDateLocalDateTime = localDateTimeParse(toDate, "yyyy-MM-dd HH:mm:ss");
LocalDateTime localDateTimeTenMinuteAfter = localDateTime.plusMinutes(10);
Duration between = Duration.between(toDateLocalDateTime, localDateTimeTenMinuteAfter);
return between.toMillis();
}
/**
* 獲取指定日期yyyy-mm-dd HH:mm:ss的前後幾個月，前用負數表示2月份前的一個月就是-1
*
* @return
* @throws
* @author hl
* @date 2019/1/7 13:36
*/
public static String getBeforSomeMonthFromCurrent(String currentTm, int month) {
LocalDateTime localDateTime = localDateTimeParse(currentTm, "yyyy-MM-dd HH:mm:ss");
LocalDateTime localDateTimeBeforSomeMonth = localDateTime.plusMonths(month);
return localDateTime2YMDHMS(localDateTimeBeforSomeMonth);
}
/**
* 獲取當前時間前一個月的日期yyyy-mm-dd HH:mm:ss格式
*
* @return
* @throws
* @author hl
* @date 2019/1/7 13:44
*/
public static String getBeforOneMonthFromCurrent() {
LocalDateTime localDateTime = LocalDateTime.now();
LocalDateTime localDateTimeBeforOneMonth = localDateTime.plusMonths(-1);
return localDateTime2YMDHMS(localDateTimeBeforOneMonth);
}
/**
* 獲取當前時間後一個月的日期yyyy-mm-dd HH:mm:ss格式
*
* @return
* @throws
* @author hl
* @date 2019/1/7 13:46
*/
public static String getAfterOneMonthFromCurrent() {
LocalDateTime localDateTime = LocalDateTime.now();
LocalDateTime localDateTimeAfterOneMonth = localDateTime.plusMonths(1);
return localDateTime2YMDHMS(localDateTimeAfterOneMonth);
}
/**
* 獲取當前時間的幾個月之前或之後的時間值yyyy-mm-dd HH:mm:ss格式
* 當前時間前傳負數，後傳正數
*
* @return
* @throws
* @author hl
* @date 2019/1/7 13:58
*/
public static String getBeforeSomeMonthFromCurrent(int month) {
LocalDateTime localDateTime = LocalDateTime.now();
LocalDateTime localDateTimeAfterOneMonth = localDateTime.plusMonths(month);
return localDateTime2YMDHMS(localDateTimeAfterOneMonth);
}
/**
* 獲取當前時間後N個小時的字串時間
* yyyy-mm-dd HH:mm:ss
* @author hl
* @return
* @exception
* @date 2019/1/7 15:03
*/
public static String getAfterTimeDateYMDHMS(int i) {
LocalDateTime localDateTime = LocalDateTime.now();
LocalDateTime localDateTimeAdd = localDateTime.plusHours(i);
return localDateTime2YMDHMS(localDateTimeAdd);
}
/**
* @param str 需要校驗的時間字串 2018-09-10 或者2018-09-10 12:23:38
* @param pattern 時間的格式 yyyy-MM-dd 或者yyyy-MM-dd HH:mm:ss(24小時制)
* @return
*/
public static boolean isValidDate(String str, String pattern) {
boolean convertSuccess = true;
// 指定日期格式為四位年/兩位月份/兩位日期，注意yyyy/MM/dd區分大小寫；
SimpleDateFormat format = new SimpleDateFormat(pattern);
try {
// 設定lenient為false.
// 否則SimpleDateFormat會比較寬鬆地驗證日期，比如2007/02/29會被接受，並轉換成2007/03/01
format.setLenient(false);
format.parse(str);
} catch (ParseException e) {
// e.printStackTrace();
// 如果throw java.text.ParseException或者NullPointerException，就說明格式不對
convertSuccess = false;
}
return convertSuccess;
}
public static void main(String[] args) {
System.out.println("dateToYMD: " + dateToYMD(new Date()));
System.out.println("dateToYMDHMS: " + dateToYMDHMS(new Date()));
System.out.println("dateToYMDhms: " + dateToYMDhms(new Date()));
System.out.println("date2YMDhmsss: " + date2YMDhmsss(new Date()));
System.out.println("YMDToDate: " + YMDToDate("2019-01-07"));
System.out.println("YMDHMSToDate: " + YMDHMSToDate("2019-01-07 00:00:09"));
System.out.println("DateToLocalDateTime: " + DateToLocalDateTime(new Date()));
System.out.println("DateTime2Date: " + DateTime2Date(LocalDateTime.now()));
System.out.println("LocalDateTimeToLocalDate: " + LocalDateTimeToLocalDate(LocalDateTime.now()));
System.out.println("getTheYear: " + getTheYear());
System.out.println("localDateTimeParse: " + localDateTimeParse("2019-01-07 00:50:00", "yyyy-MM-dd HH:mm:ss"));
System.out.println("checkBwintervalNumberMinBegTmAndEndTm: " + checkBwintervalNumberMinBegTmAndEndTm("2019-01-07 00:00:00", "2019-01-07 00:41:00", 40));
System.out.println("checkBegTmAndEndTm: " + checkBegTmAndEndTm("2019-01-07 00:30:00", "2019-01-07 00:41:00"));
System.out.println("checkDaysBegTmAndEndTm: " + checkDaysBegTmAndEndTm("2019-01-09 00:00:00", "2019-01-07 00:00:50"));
System.out.println("getAfterWeekDateYMDHMS: " + getAfterWeekDateYMDHMS(new Date()));
System.out.println("getBeforOneMonthFromCurrent: " + getBeforSomeMonthFromCurrent("2019-01-07 00:00:50", 1));
System.out.println("getAfterOneMonthFromCurrent: " + getAfterOneMonthFromCurrent());
System.out.println("getBeforOneMonthFromCurrent: " + getBeforOneMonthFromCurrent());
System.out.println("getBeforOneDateYMDHMS: " + getBeforOneDateYMDHMS(new Date()));
System.out.println("getBeforeSomeMonthFromCurrent: " + getBeforeSomeMonthFromCurrent(3));
System.out.println("getHourFromTwoTime: " + getHourFromTwoTime("2019-01-09 00:00:00", "2019-01-07 00:00:50"));
System.out.println("checkBw40MinBegTmAndEndTm: " + checkBw40MinBegTmAndEndTm("2019-01-09 00:00:00", "2019-01-07 00:00:50"));
System.out.println("checkDaysBeforeTenMinuteCurrTmAndBegTm: " + checkDaysBeforeTenMinuteCurrTmAndBegTm("2019-01-07 00:00:50", "2019-01-07 00:00:50"));
System.out.println("getEndOneDateYMDHMS: " + getEndOneDateYMDHMS(new Date()));
System.out.println("isValidDate: " + isValidDate("2019-01-07 00:00:50", "yyyy-MM-dd HH:mm:ss"));
}
}
附上一個不錯的教程地址：java.time包教程
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