我正在尝试IMessageBus
在 FluentScheduler 的作业中使用注入的对象 ()。
我的 autofac 设置如下所示:
var thisAssembly = Assembly.GetExecutingAssembly();
var umbracoAssembly = typeof(UmbracoApplication).Assembly;
var builder = new ContainerBuilder();
// Controllers
builder.RegisterControllers(thisAssembly);
builder.RegisterApiControllers(thisAssembly);
// Umbraco related stuff (http://issues.umbraco.org/issue/U4-4181)
builder.RegisterControllers(umbracoAssembly);
builder.RegisterApiControllers(umbracoAssembly);
builder.RegisterType<MessageBus>().As<IMessageBus>();
Container = builder.Build();
我有一个看起来像这样的预定工作:
public class CourseAgentJob : IJob
{
private IMessageBus _bus;
public CourseAgentJob(IMessageBus bus)
{
_bus = bus;
}
public async void Execute()
{
ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new Exception("Fire course agent")));
}
}
当我的工作触发/设置时,我收到以下错误:
System.AggregateException:发生一个或多个错误。---> System.MissingMethodException:没有为此对象定义无参数构造函数。在 System.RuntimeTypeHandle.CreateInstance(RuntimeType 类型,Boolean publicOnly,Boolean noCheck,Boolean& canBeCached,RuntimeMethodHandleInternal& ctor,Boolean& bNeedSecurityCheck)在 System.RuntimeType.CreateInstanceSlow(Boolean publicOnly,Boolean skipCheckThis,Boolean fillCache,StackCrawlMark& stackMark)在 System.Activator.CreateInstanceT在 FluentScheduler.JobFactory.FluentScheduler.IJobFactory.GetJobInstanceT 在 A:\GitHub\FluentScheduler\Library\JobFactory.cs:第 25 行在 FluentScheduler.JobManager.<>c__12
1.<GetJobAction>b__12_0() in A:\GitHub\FluentScheduler\Library\JobManager.cs:line 66 at System.Threading.Tasks.Task.Execute() --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) at FluentScheduler.JobManager.<>c__DisplayClass43_0.<RunJob>b__0() in A:\GitHub\FluentScheduler\Library\JobManager.cs:line 447 at System.Threading.Tasks.Task.Execute() ---> (Inner Exception #0) System.MissingMethodException: No parameterless constructor defined for this object. at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) at System.Activator.CreateInstance[T]() at FluentScheduler.JobFactory.FluentScheduler.IJobFactory.GetJobInstance[T]() in A:\GitHub\FluentScheduler\Library\JobFactory.cs:line 25 at FluentScheduler.JobManager.<>c__12
1.b__12_0() 在 A:\GitHub\FluentScheduler\Library\JobManager .cs:第 66 行,位于 System.Threading.Tasks.Task.Execute()<
哪个看起来没有正确注册?我以前没有做过很多 DI/IoC,所以我有点迷茫。