diff --git a/src/Modules/新版JIT或JIS系统服务端/src/WY.NewJit.Domain/MsgCheck/Services/BillNumberRecordDomainService.cs b/src/Modules/新版JIT或JIS系统服务端/src/WY.NewJit.Domain/MsgCheck/Services/BillNumberRecordDomainService.cs
index 8151032..9bd3ef2 100644
--- a/src/Modules/新版JIT或JIS系统服务端/src/WY.NewJit.Domain/MsgCheck/Services/BillNumberRecordDomainService.cs
+++ b/src/Modules/新版JIT或JIS系统服务端/src/WY.NewJit.Domain/MsgCheck/Services/BillNumberRecordDomainService.cs
@@ -5,6 +5,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using Volo.Abp;
+using Volo.Abp.DependencyInjection;
 using Volo.Abp.Domain.Repositories;
 using Volo.Abp.Domain.Services;
 using WY.NewJit.MsgBaseData;
@@ -12,6 +13,7 @@ using WY.NewJit.PrintTable;
 
 namespace WY.NewJit.MsgCheck
 {
+    [Dependency(Microsoft.Extensions.DependencyInjection.ServiceLifetime.Singleton, ReplaceServices =true)]
     public class BillNumberRecordDomainService : DomainService
     {
         private readonly IRepository<BillNumberRecord, Guid> _billNumberRepository;