package com.github.tools.pub;
import lombok.extern.slf4j.Slf4j;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
@Slf4j
public final class Dates {
public static final String DATE_FORMAT = "yyyy-MM-dd";
public static final String DATE_YYYYMMDD = "yyyyMMdd";
public static final String DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
public static final String DATE_TIME_NO_SS = "yyyy-MM-dd HH:mm";
public static final String DATE_TIME_SSSS_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";
private Dates() {
}
/**
* 昨天零点
*
* @return
*/
public static Date yesterday() {
LocalDateTime startOfDay = LocalDate.now().minusDays(1).atStartOfDay();
Date today = Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
return new Date();
}
/**
* 今天零点
*
* @return
*/
public static Date today() {
LocalDateTime startOfDay = LocalDate.now().atStartOfDay();
Date today = Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
return today;
}
/**
* 当前时间
*
* @return
*/
public static Date now() {
return new Date();
}
public static boolean isSameDay(Date date1, Date date2) {
if (date1 != null && date2 != null) {
Calendar cal1 = Calendar.getInstance();
cal1.setTime(date1);
Calendar cal2 = Calendar.getInstance();
cal2.setTime(date2);
return isSameDay(cal1, cal2);
} else {
throw new IllegalArgumentException("The date must not be null");
}
}
/**
* 默认格式化为yyyy-MM-dd HH:mm:ss
* @param date
* @return
*/
public static String format(Date date, String format) {
DateFormat dateFormat = new SimpleDateFormat(format);
try {
return dateFormat.format(date);
} catch (Exception e) {
log.error("格式化时间错误！formatter: "+ format, e);
throw new IllegalArgumentException("格式化时间错误！请检查输入参数");
}
}
/**
* 默认格式化为yyyy-MM-dd HH:mm:ss
* @param date
* @return
*/
public static String format(Date date) {
DateFormat format = new SimpleDateFormat(DATE_TIME_FORMAT);
try {
return format.format(date);
} catch (Exception e) {
log.error("格式化时间错误！date: "+ date, e);
throw new IllegalArgumentException("格式化时间错误！");
}
}
public static Date parse(String datetimeStr, String pattern) {
try {
DateFormat mFormat = new SimpleDateFormat(pattern);
return mFormat.parse(datetimeStr);
} catch (ParseException e) {
log.error("parse date error, str:" + datetimeStr+", pattern: "+ pattern, e);
throw new IllegalArgumentException("时间格式化错误，请检查输入参数！");
}
}
/**
* 默认以yyyy-MM-dd HH:mm:ss格式化
*
* @param datetimeStr
* @return
*/
public static Date parse(String datetimeStr) {
DateFormat mFormat = new SimpleDateFormat(DATE_TIME_FORMAT);
try {
return mFormat.parse(datetimeStr);
} catch (ParseException e) {
log.error("parse date error, str:" + datetimeStr, e);
throw new IllegalArgumentException("时间格式化错误，请检查输入参数！");
}
}
public static LocalDateTime convert(long millis) {
return LocalDateTime.ofInstant(Instant.ofEpochMilli(millis), TimeZone.getDefault().toZoneId());
}
public static LocalDateTime parseToLDT(String text) {
return LocalDateTime.parse(standardDateTime(text), DateTimeFormatter.ofPattern("yyyyMMddHHmmss", Locale.CHINA));
}
private static String standardDateTime(String text) {
String standard = text.replaceAll("\\D", "");
StringBuilder bu = new StringBuilder(standard);
while (true) {
while (bu.length() < 14) {
if (bu.length() == 5 && bu.charAt(4) == '0' || bu.length() == 7 && bu.charAt(6) == '0') {
bu.append('1');
} else {
bu.append('0');
}
}
standard = bu.toString();
if (standard.length() > 14) {
standard = standard.substring(0, 14);
}
return standard;
}
}
public static boolean isSameDay(Calendar cal1, Calendar cal2) {
if (cal1 != null && cal2 != null) {
return cal1.get(0) == cal2.get(0) && cal1.get(1) == cal2.get(1) && cal1.get(6) == cal2.get(6);
} else {
throw new IllegalArgumentException("The date must not be null");
}
}
public static Date addYears(Date date, int amount) {
return add(date, 1, amount);
}
public static Date addMonths(Date date, int amount) {
return add(date, 2, amount);
}
public static Date addWeeks(Date date, int amount) {
return add(date, 3, amount);
}
public static Date addDays(Date date, int amount) {
return add(date, 5, amount);
}
public static Date addHours(Date date, int amount) {
return add(date, 11, amount);
}
public static Date addMinutes(Date date, int amount) {
return add(date, 12, amount);
}
public static Date addSeconds(Date date, int amount) {
return add(date, 13, amount);
}
public static Date addMilliseconds(Date date, int amount) {
return add(date, 14, amount);
}
private static Date add(Date date, int calendarField, int amount) {
validateDateNotNull(date);
Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(calendarField, amount);
return c.getTime();
}
public static Date setYears(Date date, int amount) {
return set(date, 1, amount);
}
public static Date setMonths(Date date, int amount) {
return set(date, 2, amount);
}
public static Date setDays(Date date, int amount) {
return set(date, 5, amount);
}
public static Date setHours(Date date, int amount) {
return set(date, 11, amount);
}
public static Date setMinutes(Date date, int amount) {
return set(date, 12, amount);
}
public static Date setSeconds(Date date, int amount) {
return set(date, 13, amount);
}
public static Date setMilliseconds(Date date, int amount) {
return set(date, 14, amount);
}
private static Date set(Date date, int calendarField, int amount) {
validateDateNotNull(date);
Calendar c = Calendar.getInstance();
c.setLenient(false);
c.setTime(date);
c.set(calendarField, amount);
return c.getTime();
}
private static void validateDateNotNull(Date date) {
if (date == null) {
throw new IllegalArgumentException("date can't be null");
}
}
public static void main(String[] args) {
System.out.println(Dates.addDays(Dates.now(), 1));
}
}
