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package cn.chnmuseum.party.common.util;
import jdk.nashorn.internal.parser.DateParser;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
import java.time.temporal.TemporalAdjusters;
import java.util.Date;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
public class TimeUtils {
// 格式：年－月－日 小时：分钟：秒
public static final String FORMAT_ONE = "yyyy-MM-dd HH:mm:ss";
public static final String FORMAT_T = "yyyy-MM-ddTHH:mm:ss";
// 格式：年－月－日 小时：分钟
public static final String FORMAT_TWO = "yyyy-MM-dd HH:mm";
// 格式：年－月－日
public static final String LONG_DATE_FORMAT = "yyyy-MM-dd";
// 格式：月－日
public static final String SHORT_DATE_FORMAT = "MM-dd";
// 格式：小时：分钟：秒
public static final String LONG_TIME_FORMAT = "HH:mm:ss";
// 格式：年-月
public static final String MONTG_DATE_FORMAT = "yyyy-MM";
// 格式：年-月
public static final String Chinese_DATE_FORMAT = "yyyy年MM月dd日 HH:mm";
private static final ConcurrentMap<String, DateTimeFormatter> FORMATTER_CACHE = new ConcurrentHashMap<>();
private static final int PATTERN_CACHE_SIZE = 500;
public static LocalDate getCurrentDate = LocalDate.now();
public static LocalTime getCurrentTime = LocalTime.now().withNano(0);
/**
* Date转换为long
*
* @param date date
* @return
*/
public static long parseDate(Date date) {
return date.getTime() / 1000L;
}
/**
* Date转换为格式化时间
*
* @param date date
* @param pattern 格式
* @return
*/
public static String format(Date date, String pattern) {
return format(LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()), pattern);
}
/**
* localDateTime转换为格式化时间
*
* @param localDateTime localDateTime
* @param pattern 格式
* @return
*/
public static String format(LocalDateTime localDateTime, String pattern) {
DateTimeFormatter formatter = createCacheFormatter(pattern);
return localDateTime.format(formatter);
}
/**
* 格式化字符串转为Date
*
* @param time 格式化时间
* @param pattern 格式
* @return
*/
public static Date parseDate(String time, String pattern) {
return Date.from(parseLocalDateTime(time, pattern).atZone(ZoneId.systemDefault()).toInstant());
}
/**
* 格式化字符串转为LocalDateTime
*
* @param time 格式化时间
* @param pattern 格式
* @return
*/
public static LocalDateTime parseLocalDateTime(String time, String pattern) {
DateTimeFormatter formatter = createCacheFormatter(pattern);
return LocalDateTime.parse(time, formatter);
}
/**
* 将某时间字符串转为自定义时间格式的LocalDateTime
*
* @param time
* @param format
* @return
*/
public static LocalDateTime parseStringToDateTime(String time, String format) {
DateTimeFormatter df = DateTimeFormatter.ofPattern(format);
return LocalDateTime.parse(time, df);
}
/**
* java.util.Date --> java.time.LocalDateTime
*/
public static LocalDateTime UDateToLocalDateTime(Date date) {
Instant instant = date.toInstant();
ZoneId zone = ZoneId.systemDefault();
return LocalDateTime.ofInstant(instant, zone);
}
/**
* 将LocalDateTime转为自定义的时间格式的字符串
*
* @param localDateTime
* @param format
* @return
*/
public static String getDateTimeAsString(LocalDateTime localDateTime, String format) {
DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format);
return localDateTime.format(formatter);
}
/**
* 将long类型的timestamp转为LocalDateTime
*
* @param timestamp
* @return
*/
public static LocalDateTime getDateTimeOfTimestamp(long timestamp) {
Instant instant = Instant.ofEpochMilli(timestamp);
ZoneId zone = ZoneId.systemDefault();
return LocalDateTime.ofInstant(instant, zone);
}
/**
* 将LocalDateTime转为long类型的timestamp
*
* @param localDateTime
* @return
*/
public static long getTimestampOfDateTime(LocalDateTime localDateTime) {
ZoneId zone = ZoneId.systemDefault();
Instant instant = localDateTime.atZone(zone).toInstant();
return instant.toEpochMilli();
}
public static long getTimestampOfDateTime8(LocalDateTime localDateTime) {
ZoneId zone = ZoneId.of("Asia/Shanghai");
Instant instant = localDateTime.atZone(zone).toInstant();
return instant.toEpochMilli();
}
/**
* 在缓存中创建DateTimeFormatter
*
* @param pattern 格式
* @return
*/
private static DateTimeFormatter createCacheFormatter(String pattern) {
if (pattern == null || pattern.length() == 0) {
throw new IllegalArgumentException("Invalid pattern specification");
}
DateTimeFormatter formatter = FORMATTER_CACHE.get(pattern);
if (formatter == null) {
if (FORMATTER_CACHE.size() < PATTERN_CACHE_SIZE) {
formatter = DateTimeFormatter.ofPattern(pattern);
DateTimeFormatter oldFormatter = FORMATTER_CACHE.putIfAbsent(pattern, formatter);
if (oldFormatter != null) {
formatter = oldFormatter;
}
}
}
return formatter;
}
/**
* 解析时间字符串
*
* @param dateString ECMA 5.1 DateString
*/
public static LocalDateTime parseUTCDateTime(String dateString) {
DateParser dateParser = new DateParser(dateString);
if (dateParser.parse()) {
Integer[] dateFields = dateParser.getDateFields();
LocalDateTime localDateTime = LocalDateTime.of(dateFields[0], dateFields[1] + 1, dateFields[2], dateFields[3], dateFields[4], dateFields[5], dateFields[6]);
if (dateFields[7] != null) {
return localDateTime.minusMinutes(dateFields[7]);
}
return localDateTime;
}
throw new DateTimeParseException("解析时间出现错误:" + dateString, dateString, 0);
}
public static ZonedDateTime parseZonedDateTime(String dateString) {
DateParser dateParser = new DateParser(dateString);
if (dateParser.parse()) {
Integer[] dateFields = dateParser.getDateFields();
if (dateFields[7] != null) {
return ZonedDateTime.of(dateFields[0], dateFields[1] + 1, dateFields[2], dateFields[3], dateFields[4], dateFields[5], dateFields[6], ZoneId.ofOffset("", ZoneOffset.ofHoursMinutes(dateFields[7] / 60, dateFields[7] % 60)));
}
return ZonedDateTime.of(dateFields[0], dateFields[1] + 1, dateFields[2], dateFields[3], dateFields[4], dateFields[5], dateFields[6], ZoneId.systemDefault());
}
throw new DateTimeParseException("解析时间出现错误:" + dateString, dateString, 0);
}
/**
* Date转换为LocalDateTime
*
* @param date
*/
public static LocalDateTime date2LocalDateTime(Date date) {
Instant instant = date.toInstant();//An instantaneous point on the time-line.(时间线上的一个瞬时点。)
ZoneId zoneId = ZoneId.systemDefault();//A time-zone ID, such as {@code Europe/Paris}.(时区)
return instant.atZone(zoneId).toLocalDateTime();
}
/**
* LocalDateTime转换为Date
*
* @param localDateTime
*/
public static Date localDateTime2Date(LocalDateTime localDateTime) {
ZoneId zoneId = ZoneId.systemDefault();
ZonedDateTime zdt = localDateTime.atZone(zoneId);//Combines this date-time with a time-zone to create a ZonedDateTime.
return Date.from(zdt.toInstant());
}
/**
* 取本月第一天
*/
public static LocalDate firstDayOfThisMonth() {
LocalDate today = LocalDate.now();
return today.with(TemporalAdjusters.firstDayOfMonth());
}
/**
* 取本月第N天
*/
public static LocalDate dayOfThisMonth(int n) {
LocalDate today = LocalDate.now();
return today.withDayOfMonth(n);
}
/**
* 取本月最后一天
*/
public static LocalDate lastDayOfThisMonth() {
LocalDate today = LocalDate.now();
return today.with(TemporalAdjusters.lastDayOfMonth());
}
/**
* 取本月第一天的开始时间
*/
public static LocalDateTime startOfThisMonth() {
return LocalDateTime.of(firstDayOfThisMonth(), LocalTime.MIN);
}
/**
* 取本月最后一天的结束时间
*/
public static LocalDateTime endOfThisMonth() {
return LocalDateTime.of(lastDayOfThisMonth(), LocalTime.MAX);
}
/**
* 取N天后
*/
public static LocalDateTime plusDays(int days) {
LocalDateTime now = LocalDateTime.now();
return now.plusDays(days);
}
/**
* 取N小时后
*/
public static LocalDateTime plusHours(int hours) {
LocalDateTime now = LocalDateTime.now();
return now.plusHours(hours);
}
/**
* 取N小时后
*/
public static long plusHours(long timestamp, int hours) {
return timestamp + hours * 60 * 60;
}
}