102 lines
3.6 KiB
C#
102 lines
3.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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namespace JiShe.CollectBus.Common.Extensions
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{
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public static class DateTimeOffsetExtensions
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{
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/// <summary>
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/// 获取当前时间毫秒级时间戳
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/// </summary>
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/// <returns></returns>
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public static long GetCurrentTimeMillis()
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{
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return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
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}
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/// <summary>
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/// 将Unix时间戳转换为日期时间
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/// </summary>
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/// <param name="millis"></param>
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/// <returns></returns>
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public static DateTime FromUnixMillis(long millis)
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{
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return DateTimeOffset.FromUnixTimeMilliseconds(millis).DateTime;
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}
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/// <summary>
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/// 采集时间节点计算
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/// </summary>
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/// <param name="referenceTime">待采集时间</param>
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/// <param name="interval"></param>
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/// <returns></returns>
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public static DateTime CalculateNextCollectionTime(this DateTime referenceTime, int interval)
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{
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// 计算精确到分钟的基准时间
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var baseTime = new DateTime(
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referenceTime.Year,
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referenceTime.Month,
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referenceTime.Day,
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referenceTime.Hour,
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referenceTime.Minute,
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0);
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// 计算总分钟数和下一个间隔点
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int totalMinutes = baseTime.Hour * 60 + baseTime.Minute;
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int nextTotalMinutes = ((totalMinutes / interval) + 1) * interval;
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// 处理跨天情况
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int daysToAdd = nextTotalMinutes / (24 * 60);
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int remainingMinutes = nextTotalMinutes % (24 * 60);
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int hours = remainingMinutes / 60;
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int minutes = remainingMinutes % 60;
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return baseTime.Date
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.AddDays(daysToAdd)
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.AddHours(hours)
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.AddMinutes(minutes);
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}
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/// <summary>
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/// 将 DateTime 时间转换为 DateTimeOffset 时间
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/// </summary>
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/// <param name="rawDateTime"></param>
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/// <returns></returns>
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public static DateTimeOffset GetDateTimeOffset(this DateTime rawDateTime)
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{
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//确保 Kind 为 Local（如果是 Unspecified）
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DateTime localDateTime = rawDateTime.Kind == DateTimeKind.Unspecified
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? DateTime.SpecifyKind(rawDateTime, DateTimeKind.Local)
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: rawDateTime;
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// 转换为 DateTimeOffset（自动应用本地时区偏移）
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return new DateTimeOffset(localDateTime);
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}
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private static readonly long UnixEpochTicks = new DateTimeOffset(1970, 1, 1, 0, 0, 0, TimeSpan.Zero).Ticks;
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/// <summary>
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/// 获取当前 DateTimeOffset 距离 Unix 纪元（1970-01-01）的微秒数
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/// </summary>
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public static long ToUnixTimeMicroseconds(this DateTimeOffset dateTimeOffset)
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{
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// Ticks 单位是 100 纳秒，转换为微秒需除以 10
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long elapsedTicks = dateTimeOffset.Ticks - UnixEpochTicks;
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return elapsedTicks / 10; // 1 微秒 = 1000 纳秒 = 10 Ticks
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}
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/// <summary>
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/// 获取当前 DateTimeOffset 距离 Unix 纪元（1970-01-01）的纳秒数
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/// </summary>
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public static long ToUnixTimeNanoseconds(this DateTimeOffset dateTimeOffset)
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{
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long nanoseconds = (dateTimeOffset.Ticks - UnixEpochTicks) * 100;
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return nanoseconds;
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}
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}
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}
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