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我刚刚完成了从 EF Core 2.2 到 EF Core 3.1 的升级。在此之后，我遇到了这个错误。我已经定义了这个类：

public class AdminCompanies
{
    public int Code { get; set; }
    public string CompanyName{ get; set; }
    public string Owner{ get; set; }
    public short? Administrator{ get; set; }
    public short? Type { get; set; }
}

使用此配置：

public class AdminCompaniesConfiguration : IEntityTypeConfiguration<AdminCompanies>
{
    public void Configure(EntityTypeBuilder<AdminCompanies> builder)
    {
        builder.ToTable("UTENTI");
        builder.Property(t => t.Code).HasColumnName("CODICE");
        builder.Property(t => t.CompanyName).HasColumnName("RAG_SOCIALE").HasMaxLength(80);
        builder.Property(t => t.Owner).HasColumnName("PALLETS");
        builder.Property(t => t.Administrator).HasColumnName("AMMINISTRATORE");
        builder.Property(t => t.Type).HasColumnName("TIPO");
        builder.Property(t => t.Owner).HasMaxLength(1);
        builder.HasKey(t => t.Code);
    }
}

在上下文的“OnModelCreating”中赋值：

            modelBuilder.ApplyConfiguration(new AdminCompaniesConfiguration());

一切似乎都很好，但是当我尝试使用context.Database.ExecuteSqlRawAsync时，我收到了这个错误，我不明白为什么。这是堆栈跟踪：

Message: 
Assert.Throws() Failure
Expected: typeof(System.Exception)
Actual:   typeof(System.InvalidOperationException): The entity type 'AdminCompanies' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'.
---- System.InvalidOperationException : The entity type 'AdminCompanies' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'.
Stack Trace: 
ModelValidator.ValidateNonNullPrimaryKeys(IModel model, IDiagnosticsLogger logger)
ModelValidator.Validate(IModel model, IDiagnosticsLogger logger)
ValidatingConvention.ProcessModelFinalized(IConventionModelBuilder modelBuilder, IConventionContext context)
ImmediateConventionScope.OnModelFinalized(IConventionModelBuilder modelBuilder)
ConventionDispatcher.OnModelFinalized(IConventionModelBuilder modelBuilder)
Model.FinalizeModel()
ModelBuilder.FinalizeModel()
ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder)
ModelSource.GetModel(DbContext context, IConventionSetBuilder conventionSetBuilder)
DbContextServices.CreateModel()
DbContextServices.get_Model()
<>c.<TryAddCoreServices>b__7_3(IServiceProvider p)
CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSite(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSite(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
ServiceProviderEngineScope.GetService(Type serviceType)
ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
DbContext.get_DbContextDependencies()
DbContext.get_InternalServiceProvider()
IServiceProvider>.get_Instance()
InfrastructureExtensions.GetService[TService](IInfrastructure accessor)
AccessorExtensions.GetService[TService](IInfrastructure accessor)
DatabaseFacade.get_Dependencies()
IDatabaseFacadeDependenciesAccessor.get_Dependencies()
RelationalDatabaseFacadeExtensions.GetFacadeDependencies(DatabaseFacade databaseFacade)
RelationalDatabaseFacadeExtensions.ExecuteSqlRawAsync(DatabaseFacade databaseFacade, String sql, IEnumerable parameters, CancellationToken cancellationToken)
AdminUsersRepo.InsertUpdateUserAsync(Int32 senderCompany, Decimal senderId, AdminUsers user, String modalita, Int32 userCompany) line 281
----- Inner Stack Trace -----
ModelValidator.ValidateNonNullPrimaryKeys(IModel model, IDiagnosticsLogger logger)
ModelValidator.Validate(IModel model, IDiagnosticsLogger logger)
ValidatingConvention.ProcessModelFinalized(IConventionModelBuilder modelBuilder, IConventionContext context)
ImmediateConventionScope.OnModelFinalized(IConventionModelBuilder modelBuilder)
ConventionDispatcher.OnModelFinalized(IConventionModelBuilder modelBuilder)
Model.FinalizeModel()
ModelBuilder.FinalizeModel()
ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder)
ModelSource.GetModel(DbContext context, IConventionSetBuilder conventionSetBuilder)
DbContextServices.CreateModel()
DbContextServices.get_Model()
<>c.<TryAddCoreServices>b__7_3(IServiceProvider p)
CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSite(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType)
CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite singletonCallSite, RuntimeResolverContext context)
CallSiteVisitor.VisitCallSite(ServiceCallSite callSite, TArgument argument)
CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
ServiceProviderEngineScope.GetService(Type serviceType)
ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
DbContext.get_DbContextDependencies()
DbContext.get_InternalServiceProvider()
IServiceProvider>.get_Instance()
InfrastructureExtensions.GetService[TService](IInfrastructure accessor)
AccessorExtensions.GetService[TService](IInfrastructure accessor)
DatabaseFacade.get_Dependencies()
IDatabaseFacadeDependenciesAccessor.get_Dependencies()
RelationalDatabaseFacadeExtensions.GetFacadeDependencies(DatabaseFacade databaseFacade)
RelationalDatabaseFacadeExtensions.ExecuteSqlRawAsync(DatabaseFacade databaseFacade, String sql, IEnumerable parameters, CancellationToken cancellationToken)
AdminUsersRepo.InsertUpdateUserAsync(Int32 senderCompany, Decimal senderId, AdminUsers user, String modalita, Int32 userCompany) line 281

所有代码在升级之前都可以正常工作。有没有人遇到过同样的问题？

任何帮助，将不胜感激

编辑

仅当我使用context.Database.ExecuteSqlRawAsync时才会引发此异常，在其他功能中一切都按预期工作。

此外，我仅在模拟对 ExecuteSqlRawAsync 的调用时才收到此错误。否则，当我从 WebAPI 调用它时，它可以工作。

4

0 回答 0