netcore 处理long（雪花Id）精度丢失

一、扩展修改(Snowflake.Core)

       ①、安装依赖包

Install-Package Snowflake.Core

        ②、扩展重写

    1、扩展雪花Id，通过更改基数生成数字坐落于(6KM【千兆】)，long超过(9KM【9007199254740991】)最大值会丢失精度。

public class SnowflakeWorker : IdWorker
{
    readonly object _lock = new Object();

    private long _lastTimestamp = -1L;

    private long _sequence = 0L;

    public SnowflakeWorker(long workerId, long datacenterId, long sequence = 0) : base(workerId, datacenterId, sequence)
    {
    }

    public override long NextId()
    {
        return base.NextId();
    }

    /// <summary>
    /// 扩展NextId
    /// </summary>
    /// <returns></returns>
    /// <exception cref="Exception"></exception>
    public long ReNextId()
    {
        lock (_lock)
        {
            long num = TimeGen();
            if (num < _lastTimestamp)
            {
                throw new Exception($"时间戳必须大于上一次生成ID的时间戳.  拒绝为{_lastTimestamp - num}毫秒生成id");
            }

            if (_lastTimestamp == num)
            {
                _sequence = ((_sequence + 1) & 0xFFF);
                if (_sequence == 0L)
                {
                    num = TilNextMillis(_lastTimestamp);
                }
            }
            else
            {
                _sequence = 0L;
            }

            _lastTimestamp = num;
            return ((num - Twepoch) << 14) | (DatacenterId << 12) | (WorkerId << 6) | _sequence;
        }
    }
}

       ③、使用

SnowflakeWorker worker = new SnowflakeWorker(1, 1);
Console.WriteLine(worker.ReNextId());

二、参考

       ①、Snowflake.Core

       ②、mb5fe09d2d96fc4(Json格式化)

       ③、SqlSugar