Question

我有一个使用aspnetboilerplate.com的ASP.NET CORE Web应用程序。它在本地运行良好，但是此例外发生在已发布的版本中：

Abp.AbpException：未知的过滤器名称：MayHaveTenant。确保此过滤器之前已注册。

最后，此异常导致客户端502错误：

502-Web服务器在充当网关或代理服务器时收到无效响应。

我在此应用程序中未使用多租户。我最近看到此异常，但之前效果很好。

我试图注册MayHaveTenant过滤器，但是该注册已被注册。我跟踪了失败的请求，但是没有有用的信息。谁能帮我解决这个问题？

更新

这是我的堆栈跟踪：

    Abp.AbpException: Unknown filter name: MayHaveTenant. Be sure this filter is registered before.
   at Abp.Domain.Uow.UnitOfWorkBase.GetFilterIndex(String filterName)
   at Abp.Domain.Uow.UnitOfWorkBase.SetFilterParameter(String filterName, String parameterName, Object value)
   at Abp.Domain.Uow.UnitOfWorkBase.SetTenantId(Nullable`1 tenantId, Boolean switchMustHaveTenantEnableDisable)
   at Abp.Domain.Uow.UnitOfWorkBase.Begin(UnitOfWorkOptions options)
   at Abp.Domain.Uow.UnitOfWorkManager.Begin(UnitOfWorkOptions options)
   at Abp.Auditing.AuditingHelper.SaveAsync(AuditInfo auditInfo)
   at Abp.AspNetCore.Mvc.Auditing.AbpAuditActionFilter.OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextExceptionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ExceptionContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at MyProject.Authentication.JwtBearer.JwtTokenMiddleware.<>c__DisplayClass0_0.<<UseJwtTokenMiddleware>b__0>d.MoveNext() in H:\MyProject\src\MyProject.Web.Core\Authentication\JwtBearer\JwtTokenMiddleware.cs:line 22
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)

这是我的DbContext：

    public class MyProjectDbContext : AbpZeroDbContext<Tenant, Role, User, MyProjectDbContext>
{
    /* Define a DbSet for each entity of the application */
    public DbSet<Category> Categories { get; set; }
    public DbSet<Provider> Providers { get; set; }
    public DbSet<Product> Products { get; set; }
    public DbSet<Property> Properties { get; set; }
    public DbSet<ProductProperty> ProductProperties { get; set; }
    public DbSet<Stock> Stocks { get; set; }
    public DbSet<ProductPicture> ProductPictures { get; set; }
    public DbSet<Comment> Comments { get; set; }
    public DbSet<Score> Scores { get; set; }
    public DbSet<Order> Orders { get; set; }
    public DbSet<OrderItem> OrderItems { get; set; }
    public DbSet<Privilege> Privileges { get; set; }

    public MyProjectDbContext(DbContextOptions<MyProjectDbContext> options)
        : base(options)
    {
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.ApplyConfiguration(new CategoryConfiguration());
        modelBuilder.ApplyConfiguration(new OrderConfiguration());
        modelBuilder.ApplyConfiguration(new StockConfiguration());

        base.OnModelCreating(modelBuilder);
    }
}

Answer 1

对我来说，此错误是在将asp.net核心样板项目部署到其他服务器后发生的。

连接字符串有问题。由于这个误导性的错误，我浪费了数小时并最终修复了它。如果有人也得到这样的错误。确保首先检查连接字符串。谢谢

Answer 2

如果您覆盖了DbContext的OnModelCreating或Initialize方法，而不是称为基本方法，则会发生。

获取asp.net样板异常：未知的过滤器名称：服务器上的MayHaveTenant

2 个答案: