Autofac configuration for hangfire

Question

I want to use hangfire in my Asp.Net MVC App and I'm using Autofac as DI.
I've installed Hangfire.Autofac nuget
I want to add a recurring job like this:

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UserService.cs

 public class UserService : IUserService { public void MyRecurringJob() { // do something here } }

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startup.cs

Unable to resolve the type 'MyApp.Core.Service.UserService' because the lifetime scope it belongs in can't be located. The following services are exposed by this registration: - MyApp.Core.Service.UserService Details

Autofac.Core.DependencyResolutionException: Unable to resolve the type 'MyApp.Core.Service.UserService' because the lifetime scope it belongs in can't be located. The following services are exposed by this registration:
- MyApp.Core.Service.UserService

Details ---> Autofac.Core.DependencyResolutionException: No scope with a tag matching 'AutofacWebRequest' is visible from the scope in which the instance was requested.

If you see this during execution of a web application, it generally indicates that a component registered as per-HTTP request is being requested by a SingleInstance() component (or a similar scenario). Under the web integration always request dependencies from the dependency resolver or the request lifetime scope, never from the container itself.

And I get this error:

 Unable to resolve the type 'MyApp.Core.Service.UserService' because the lifetime scope it belongs in can't be located. The following services are exposed by this registration: - MyApp.Core.Service.UserService Details Autofac.Core.DependencyResolutionException: Unable to resolve the type 'MyApp.Core.Service.UserService' because the lifetime scope it belongs in can't be located. The following services are exposed by this registration: - MyApp.Core.Service.UserService Details ---> Autofac.Core.DependencyResolutionException: No scope with a tag matching 'AutofacWebRequest' is visible from the scope in which the instance was requested. If you see this during execution of a web application, it generally indicates that a component registered as per-HTTP request is being requested by a SingleInstance() component (or a similar scenario). Under the web integration always request dependencies from the dependency resolver or the request lifetime scope, never from the container itself.

Answer 1

我现在无法对其进行测试，但是为了在 Hangfire 和 Autofac 中注册重复性工作，您应该编写

RecurringJob.AddOrUpdate<UserService>("SyncUsers", (user) => user.MyRecurringJob(), Cron.Hourly());