我的一個依賴項(DbContext)是使用WebApiRequestLifestyle作用域註冊的。WebApiRequestLifestyle和BackgroundJob混淆
現在,我的後臺作業使用IoC,並依賴於使用WebApiRequestLifestyle註冊的服務。我想知道,當Hangfire調用我爲後臺作業註冊的方法時,這是如何工作的。由於web api沒有涉及,DbContext會被視爲一個傳遞對象嗎?
任何指導將是偉大的!
下面是在啓動期間出現我的初始化代碼了:
public void Configuration(IAppBuilder app)
{
var httpConfig = new HttpConfiguration();
var container = SimpleInjectorWebApiInitializer.Initialize(httpConfig);
var config = (IConfigurationProvider)httpConfig.DependencyResolver
.GetService(typeof(IConfigurationProvider));
ConfigureJwt(app, config);
ConfigureWebApi(app, httpConfig, config);
ConfigureHangfire(app, container);
}
private void ConfigureHangfire(IAppBuilder app, Container container)
{
Hangfire.GlobalConfiguration.Configuration
.UseSqlServerStorage("Hangfire");
Hangfire.GlobalConfiguration.Configuration
.UseActivator(new SimpleInjectorJobActivator(container));
app.UseHangfireDashboard();
app.UseHangfireServer();
}
public static Container Initialize(HttpConfiguration config)
{
var container = new Container();
container.Options.DefaultScopedLifestyle = new WebApiRequestLifestyle();
InitializeContainer(container);
container.RegisterMvcControllers(Assembly.GetExecutingAssembly());
container.RegisterWebApiControllers(config);
container.RegisterMvcIntegratedFilterProvider();
container.Register<Mailer>(Lifestyle.Scoped);
container.Register<PortalContext>(Lifestyle.Scoped);
container.RegisterSingleton<TemplateProvider, TemplateProvider>();
container.Verify();
DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(container));
config.DependencyResolver = new SimpleInjectorWebApiDependencyResolver(container);
return container;
}
這裏是我的代碼揭開序幕後臺作業:
public class MailNotificationHandler : IAsyncNotificationHandler<FeedbackCreated>
{
private readonly Mailer mailer;
public MailNotificationHandler(Mailer mailer)
{
this.mailer = mailer;
}
public Task Handle(FeedbackCreated notification)
{
BackgroundJob.Enqueue<Mailer>(x => x.SendFeedbackToSender(notification.FeedbackId));
BackgroundJob.Enqueue<Mailer>(x => x.SendFeedbackToManagement(notification.FeedbackId));
return Task.FromResult(0);
}
}
最後這裏是在後臺運行的代碼線程:
public class Mailer
{
private readonly PortalContext dbContext;
private readonly TemplateProvider templateProvider;
public Mailer(PortalContext dbContext, TemplateProvider templateProvider)
{
this.dbContext = dbContext;
this.templateProvider = templateProvider;
}
public void SendFeedbackToSender(int feedbackId)
{
Feedback feedback = dbContext.Feedbacks.Find(feedbackId);
Send(TemplateType.FeedbackSender, new { Name = feedback.CreateUserId });
}
public void SendFeedbackToManagement(int feedbackId)
{
Feedback feedback = dbContext.Feedbacks.Find(feedbackId);
Send(TemplateType.FeedbackManagement, new { Name = feedback.CreateUserId });
}
public void Send(TemplateType templateType, object model)
{
MailMessage msg = templateProvider.Get(templateType, model).ToMailMessage();
using (var client = new SmtpClient())
{
client.Send(msg);
}
}
}
您是否使用'Hangfire.SimpleInjector' NuGet包並將'JobActivator.Current'設置爲'SimpleInjectorJobActivator'? – Steven
@Steven是的,我是我很抱歉,我忘了在上面的代碼中顯示它。我剛添加它。 – Marco