123 lines
3.5 KiB
C#
123 lines
3.5 KiB
C#
using DocumentFormat.OpenXml.Wordprocessing;
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using SqlSugar;
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namespace OpenAuth.App.workflow;
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/// <summary>
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/// 业务编号生成器
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/// 格式：YYYYMM + 4位序列号 (如：2024120001)
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/// </summary>
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public class BusinessNoGenerator
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{
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private readonly ISqlSugarClient _sqlSugar;
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private static readonly object _lockObject = new object();
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public BusinessNoGenerator(ISqlSugarClient sqlSugar)
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{
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_sqlSugar = sqlSugar;
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}
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/// <summary>
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/// 生成业务编号
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/// </summary>
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/// <param name="prefix">业务前缀（可选）</param>
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/// <returns>业务编号</returns>
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public string GenerateBusinessNo(string prefix = "")
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{
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lock (_lockObject)
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{
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var currentDate = DateTime.Now;
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var yearMonth = currentDate.ToString("yyyyMM");
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// 查询当天最大序列号
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var todayPrefix = $"{prefix}{yearMonth}";
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var maxSequence = _sqlSugar.Queryable<BusinessNoSequence>()
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.Where(s => s.DatePrefix == todayPrefix)
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.OrderByDescending(s => s.SequenceNumber)
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.Select(s => s.SequenceNumber)
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.First();
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// 计算新的序列号
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var newSequence = maxSequence + 1;
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// 更新序列号记录
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var sequenceRecord = new BusinessNoSequence
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{
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DatePrefix = todayPrefix,
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SequenceNumber = newSequence,
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LastUpdateTime = DateTime.Now
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};
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// 如果记录不存在则插入，否则更新
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var existingRecord = _sqlSugar.Queryable<BusinessNoSequence>()
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.Where(s => s.DatePrefix == todayPrefix)
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.First();
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if (existingRecord == null)
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{
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_sqlSugar.Insertable(sequenceRecord).ExecuteCommand();
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}
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else
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{
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_sqlSugar.Updateable<BusinessNoSequence>()
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.SetColumns(s => new BusinessNoSequence
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{
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SequenceNumber = newSequence,
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LastUpdateTime = DateTime.Now
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})
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.Where(s => s.DatePrefix == todayPrefix)
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.ExecuteCommand();
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}
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// 格式化返回业务编号
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return $"{todayPrefix}{newSequence:D4}";
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}
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}
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/// <summary>
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/// 批量生成业务编号
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/// </summary>
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/// <param name="count">生成数量</param>
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/// <param name="prefix">业务前缀</param>
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/// <returns>业务编号列表</returns>
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public List<string> GenerateBatchBusinessNo(int count, string prefix = "")
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{
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var businessNos = new List<string>();
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lock (_lockObject)
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{
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for (int i = 0; i < count; i++)
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{
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businessNos.Add(GenerateBusinessNo(prefix));
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}
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}
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return businessNos;
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}
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}
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/// <summary>
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/// 业务编号序列记录表
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/// </summary>
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[SugarTable("zy_business_no_sequence")]
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public class BusinessNoSequence
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{
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/// <summary>
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/// 日期前缀 (YYYYMM格式)
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/// </summary>
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[SugarColumn(ColumnName = "dateprefix")]
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public string DatePrefix { get; set; }
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/// <summary>
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/// 当前序列号
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/// </summary>
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[SugarColumn(ColumnName = "sequencenumber")]
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public int SequenceNumber { get; set; }
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/// <summary>
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/// 最后更新时间
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/// </summary>
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[SugarColumn(ColumnName = "lastupdatetime")]
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public DateTime LastUpdateTime { get; set; }
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} |