package com.lingyejun.authenticator;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Calendar;
import java.util.TimeZone;
public class CalendarAdjust {
/**
* 获取指定某一天的开始时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getDailyStartTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.set(Calendar.HOUR_OF_DAY, 0 );
calendar.set(Calendar.SECOND, 0 );
calendar.set(Calendar.MINUTE, 0 );
calendar.set(Calendar.MILLISECOND, 0 );
return calendar.getTimeInMillis();
}
/**
* 获取指定某一天的结束时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getDailyEndTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.set(Calendar.HOUR_OF_DAY, 23 );
calendar.set(Calendar.MINUTE, 59 );
calendar.set(Calendar.SECOND, 59 );
calendar.set(Calendar.MILLISECOND, 999 );
return calendar.getTimeInMillis();
}
/**
* 获取当月开始时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getMonthStartTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance(); // 获取当前日期
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.add(Calendar.YEAR, 0 );
calendar.add(Calendar.MONTH, 0 );
calendar.set(Calendar.DAY_OF_MONTH, 1 ); // 设置为1号,当前日期既为本月第一天
calendar.set(Calendar.HOUR_OF_DAY, 0 );
calendar.set(Calendar.MINUTE, 0 );
calendar.set(Calendar.SECOND, 0 );
calendar.set(Calendar.MILLISECOND, 0 );
return calendar.getTimeInMillis();
}
/**
* 获取当月的结束时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getMonthEndTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance(); // 获取当前日期
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.add(Calendar.YEAR, 0 );
calendar.add(Calendar.MONTH, 0 );
calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH)); // 获取当前月最后一天
calendar.set(Calendar.HOUR_OF_DAY, 23 );
calendar.set(Calendar.MINUTE, 59 );
calendar.set(Calendar.SECOND, 59 );
calendar.set(Calendar.MILLISECOND, 999 );
return calendar.getTimeInMillis();
}
/**
* 获取当年的开始时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getYearStartTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance(); // 获取当前日期
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.add(Calendar.YEAR, 0 );
calendar.add(Calendar.DATE, 0 );
calendar.add(Calendar.MONTH, 0 );
calendar.set(Calendar.DAY_OF_YEAR, 1 );
calendar.set(Calendar.HOUR_OF_DAY, 0 );
calendar.set(Calendar.MINUTE, 0 );
calendar.set(Calendar.SECOND, 0 );
calendar.set(Calendar.MILLISECOND, 0 );
return calendar.getTimeInMillis();
}
/**
* 获取当年的最后时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getYearEndTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance(); // 获取当前日期
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
int year = calendar.get(Calendar.YEAR);
calendar.clear();
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.HOUR_OF_DAY, 23 );
calendar.set(Calendar.MINUTE, 59 );
calendar.set(Calendar.SECOND, 59 );
calendar.set(Calendar.MILLISECOND, 999 );
calendar.roll(Calendar.DAY_OF_YEAR, - 1 );
return calendar.getTimeInMillis();
}
/**
* 时间戳转字符串
*
* @param timestamp 毫秒级时间戳
* @param zoneId 如 GMT+8或UTC+08:00
* @return
*/
public static String timestampToStr( long timestamp, String zoneId) {
ZoneId timezone = ZoneId.of(zoneId);
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(timestamp), timezone);
return localDateTime.toString();
}
public static void main(String[] args) {
Long currentTime = System.currentTimeMillis();
System.out.println( "Current Time : " + currentTime + " = " + timestampToStr(currentTime, "GMT+8" ));
Long dailyStart = getDailyStartTime(currentTime, "GMT+8:00" );
Long dailyEnd = getDailyEndTime(currentTime, "GMT+8:00" );
Long monthStart = getMonthStartTime(currentTime, "GMT+8:00" );
Long monthEnd = getMonthEndTime(currentTime, "GMT+8:00" );
Long yearStart = getYearStartTime(currentTime, "GMT+8:00" );
Long yearEnd = getYearEndTime(currentTime, "GMT+8:00" );
System.out.println( "Daily Start : " + dailyStart + " = " + timestampToStr(dailyStart, "GMT+8" ) + " Daily End : " + dailyEnd + " = " + timestampToStr(dailyEnd, "GMT+8" ));
System.out.println( "Month Start : " + monthStart + " = " + timestampToStr(monthStart, "GMT+8" ) + " Month End : " + monthEnd + " = " + timestampToStr(monthEnd, "GMT+8" ));
System.out.println( "Year Start : " + yearStart + " = " + timestampToStr(yearStart, "GMT+8" ) + " Year End : " + yearEnd + " = " + timestampToStr(yearEnd, "GMT+8" ));
}
}
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