hangfire 的 Autofac 配置

Question

我想在我的 Asp.Net MVC 应用程序中使用 hangfire，我使用 Autofac 作为 DI。
我已经安装了 Hangfire.Autofac nuget
我想添加一个这样的循环工作：

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用户服务.cs

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

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启动文件

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.

我得到这个错误：

 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());