glz
88e5fd23be
1. 调整RandomIdHelper的默认ID生成范围从16位改为13位 2. 从IUserJournalService和UserJournalService中移除废弃的单例生成二维码方法 3. 为相关DTO添加JSON数字序列化/反序列化配置，处理前后端数字类型兼容问题 4. 修改二维码内容序列化逻辑，将数字转为字符串避免精度丢失
38 lines
1.1 KiB
C#
38 lines
1.1 KiB
C#
using System.Security.Cryptography;
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namespace QYZH.InteractiveMagazine.Common.Helpers;
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/// <summary>
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/// 随机ID帮助类
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/// </summary>
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public static class RandomIdHelper
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{
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private const long DefaultMinValue = 1_000_000_000_000L;
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private const long DefaultMaxValue = 9_000_000_000_000_000L;
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/// <summary>
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/// 生成不可预测的正数长整型ID
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/// </summary>
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public static long GenerateLongId(long minValue = DefaultMinValue, long maxValue = DefaultMaxValue)
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{
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if (minValue <= 0 || minValue >= maxValue)
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{
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throw new ArgumentOutOfRangeException(nameof(minValue), "随机ID范围配置错误");
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}
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var range = (ulong)(maxValue - minValue);
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var limit = ulong.MaxValue - (ulong.MaxValue % range);
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Span<byte> bytes = stackalloc byte[sizeof(ulong)];
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while (true)
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{
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RandomNumberGenerator.Fill(bytes);
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var value = BitConverter.ToUInt64(bytes);
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if (value < limit)
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{
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return minValue + (long)(value % range);
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}
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}
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}
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}
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