我有一个简单的网站。在我的 API 控制器中,我正在捕获命令并将其发送给处理程序。这完美地工作。在处理程序中我做了一些处理,然后发布一个事件。该事件永远不会被发布。我什至无法开始描述我为使其正常工作所做的更改列表,但都无济于事。
关于我的应用程序和任何示例之间我能看到的唯一不同之处在于,我的应用程序在同一个程序集中拥有发布者和订阅者。目前,我认为不需要单独的 NServiceBus 进程,尽管我可能会在某个时候这样做。
处理程序
public sealed class PortfoliosHandler : IHandleMessages<CreatePortfolioCommand>, IHandleMessages<PortfolioCreatedEvent>
{
public void Handle(CreatePortfolioCommand message)
{
// Processing logic, this executes just fine
Bus.Publish(new PortfolioCreatedEvent { Name = portfolio.Name });
}
public void Handle(PortfolioCreatedEvent message)
{
// This NEVER executes
}
}
配置
<UnicastBusConfig ForwardReceivedMessagesTo="audit">
<MessageEndpointMappings>
<add Assembly="Project.Domain" Namespace="Project.Domain.PM.Commands" Endpoint="messagebus" />
<add Assembly="Project.Domain" Namespace="Project.Domain.PM.Events" Endpoint="messagebus" />
</MessageEndpointMappings>
</UnicastBusConfig>
配置代码
NServiceBus.Configure.Transactions.Enable();
var config = NServiceBus.Configure.With();
config = config
.AutofacBuilder(container)
.Log4Net(new DebugAppender {Threshold = Level.Warn})
.UseTransport<Msmq>()
.PurgeOnStartup(true)
.UnicastBus()
.LoadMessageHandlers()
.RunHandlersUnderIncomingPrincipal(false)
.InMemorySubscriptionStorage()
.UseInMemoryTimeoutPersister();
var bus = config
.CreateBus()
.Start(() => Configure.Instance.ForInstallationOn<NServiceBus.Installation.Environments.Windows>()
.Install());
不仅事件处理程序永远不会触发,而且队列中也不会出现任何事件消息,日志中也不会出现发布它的记录。就好像我从来没有寄过一样。以下是调用上述 Publish 方法发出的日志条目:
NServiceBus.Unicast.UnicastBus: 15:52:11,984 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Transports.Msmq.CorrelationIdMutatorForBackwardsCompatibilityWithV3
NServiceBus.Unicast.UnicastBus: 15:52:11,984 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Transports.Msmq.CorrelationIdMutatorForBackwardsCompatibilityWithV3
NServiceBus.Unicast.UnicastBus: 15:52:12,240 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Impersonation.Windows.WindowsIdentityEnricher
NServiceBus.Unicast.UnicastBus: 15:52:12,240 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Impersonation.Windows.WindowsIdentityEnricher
NServiceBus.Unicast.UnicastBus: 15:52:12,488 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Unicast.Monitoring.VersionMutator
NServiceBus.Unicast.UnicastBus: 15:52:12,488 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Unicast.Monitoring.VersionMutator
NServiceBus.Unicast.UnicastBus: 15:52:12,743 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Unicast.Monitoring.SentTimeMutator
NServiceBus.Unicast.UnicastBus: 15:52:12,743 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Unicast.Monitoring.SentTimeMutator
NServiceBus.Unicast.UnicastBus: 15:52:12,984 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Unicast.Monitoring.CausationMutator
NServiceBus.Unicast.UnicastBus: 15:52:12,984 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Unicast.Monitoring.CausationMutator
NServiceBus.Unicast.UnicastBus: 15:52:13,228 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Sagas.OriginatingSagaHeaderMutator
NServiceBus.Unicast.UnicastBus: 15:52:13,228 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Sagas.OriginatingSagaHeaderMutator
NServiceBus.Unicast.UnicastBus: 15:52:13,475 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Sagas.AutoCorrelateSagaOnReplyMutator
NServiceBus.Unicast.UnicastBus: 15:52:13,475 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Sagas.AutoCorrelateSagaOnReplyMutator
NServiceBus.Unicast.UnicastBus: 15:52:13,721 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.MessageHeaders.MessageHeaderManager
NServiceBus.Unicast.UnicastBus: 15:52:13,721 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.MessageHeaders.MessageHeaderManager
NServiceBus.Unicast.UnicastBus: 15:52:13,969 DEBUG UnicastBus:0 - Invoking transport message mutator: NServiceBus.Gateway.HeaderManagement.GatewayHeaderManager
NServiceBus.Unicast.UnicastBus: 15:52:13,969 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Invoking transport message mutator: NServiceBus.Gateway.HeaderManagement.GatewayHeaderManager
这些是此后不久发生的日志条目:
NServiceBus.Unicast.UnicastBus: 15:52:58,866 DEBUG UnicastBus:0 - Finished handling message.
NServiceBus.Unicast.UnicastBus: 15:52:58,866 [23] DEBUG NServiceBus.Unicast.UnicastBus [(null)] <(null)> - Finished handling message.
NServiceBus.Timeout.Hosting.Windows.TimeoutPersisterReceiver: 15:53:00,900 DEBUG TimeoutPersisterReceiver:0 - Polling for timeouts at 09/20/2013 15:53:00.
NServiceBus.Timeout.Hosting.Windows.TimeoutPersisterReceiver: 15:53:00,900 [17] DEBUG NServiceBus.Timeout.Hosting.Windows.TimeoutPersisterReceiver [(null)] <(null)> - Polling for timeouts at 09/20/2013 15:53:00.
NServiceBus.Timeout.Hosting.Windows.TimeoutPersisterReceiver: 15:53:01,152 DEBUG TimeoutPersisterReceiver:0 - Polling next retrieval is at 09/20/2013 15:54:01.
NServiceBus.Timeout.Hosting.Windows.TimeoutPersisterReceiver: 15:53:01,152 [17] DEBUG NServiceBus.Timeout.Hosting.Windows.TimeoutPersisterReceiver [(null)] <(null)> - Polling next retrieval is at 09/20/2013 15:54:01.
请帮忙。我已经黔驴技穷了。由于命令、事件和消息之间的分离,我从 MassTransit 移植到 NServiceBus,但经过 4 天的努力,MassTransit 看起来非常好。
我敢肯定我正在做的事情真的很愚蠢,但我对 NServicebus 是个菜鸟。我什至买了这本书试图帮助我,但无济于事。我看不出我做错了什么,而且我尝试了很多设置排列,我无法跟踪它们。
更新于 2013 年 9 月 23 日
一个建议我有:
- 将处理程序分成两部分:PortfolioCreatedHandler 和 CreatePortfolioHandler。
- 从处理程序中取出密封
- 创建我自己的 SubscriptionStorage,包装 InMemorySubscriptionStorage 用于调试目的
我已经在使用 IEvent 来标记我的事件,并使用 ICommand 来标记我的命令。命令由 Web 控制器发布,只有处理程序发布事件。
我的 TestSubscriptionStorage 类被调用为 Init 和 GetSubscriberAddressesForMessage,而不是为订阅和 Ubsubscribe,所以看起来问题是事件没有被订阅,这很难与下面的日志条目相协调。
以下是提及 PortfolioCreatedEvent 的日志:
NServiceBus.Unicast.Routing.StaticMessageRouter: 09:34:25,886 DEBUG StaticMessageRouter:0 - Routing for message: Project.Domain.PM.Events.PortfolioCreatedEvent set to messagebus@SL-T50009909L
NServiceBus.Unicast.Routing.StaticMessageRouter: 09:34:25,886 [1] DEBUG NServiceBus.Unicast.Routing.StaticMessageRouter [(null)] <(null)> - Routing for message: Project.Domain.PM.Events.PortfolioCreatedEvent set to messagebus@SL-T50009909L
MessageType: Project.Domain.PM.Events.PortfolioCreatedEvent, Recoverable: True, TimeToBeReceived: Not set
MessageType: Project.Domain.PM.Events.PortfolioCreatedEvent, Recoverable: True, TimeToBeReceived: Not set
NServiceBus.Unicast.MessageHandlerRegistry: 09:34:25,906 DEBUG MessageHandlerRegistry:0 - Associated 'Project.Domain.PM.Events.PortfolioCreatedEvent' message with 'Project.PM.Handers.PortfolioCreatedHandler' handler
NServiceBus.Unicast.MessageHandlerRegistry: 09:34:25,906 [1] DEBUG NServiceBus.Unicast.MessageHandlerRegistry [(null)] <(null)> - Associated 'Project.Domain.PM.Events.PortfolioCreatedEvent' message with 'Project.PM.Handers.PortfolioCreatedHandler' handler
NServiceBus.Unicast.MessageHandlerRegistry: 09:34:25,916 DEBUG MessageHandlerRegistry:0 - Associated 'Project.Domain.PM.Commands.CreatePortfolioCommand' message with 'Project.PM.Handers.CreatePortfolioHandler' handler
NServiceBus.Unicast.MessageHandlerRegistry: 09:34:25,916 [1] DEBUG NServiceBus.Unicast.MessageHandlerRegistry [(null)] <(null)> - Associated 'Project.Domain.PM.Commands.CreatePortfolioCommand' message with 'Project.PM.Handers.CreatePortfolioHandler' handler
NServiceBus.Serializers.XML.XmlMessageSerializer: 09:34:26,120 DEBUG XmlMessageSerializer:0 - Initializing type: Project.Domain.PM.Events.PortfolioCreatedEvent, Project.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
NServiceBus.Serializers.XML.XmlMessageSerializer: 09:34:26,120 [1] DEBUG NServiceBus.Serializers.XML.XmlMessageSerializer [(null)] <(null)> - Initializing type: Project.Domain.PM.Events.PortfolioCreatedEvent, Project.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
NServiceBus.Unicast.Subscriptions.MessageDrivenSubscriptions.MessageDrivenSubscriptionManager: 09:34:35,445 INFO MessageDrivenSubscriptionManager:0 - Subscribing to Project.Domain.PM.Events.PortfolioCreatedEvent, Project.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null at publisher queue messagebus@SL-T50009909L
NServiceBus.Unicast.Subscriptions.MessageDrivenSubscriptions.MessageDrivenSubscriptionManager: 09:34:35,445 [18] INFO NServiceBus.Unicast.Subscriptions.MessageDrivenSubscriptions.MessageDrivenSubscriptionManager [(null)] <(null)> - Subscribing to Project.Domain.PM.Events.PortfolioCreatedEvent, Project.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null at publisher queue messagebus@SL-T50009909L
NServiceBus.AutomaticSubscriptions.DefaultAutoSubscriptionStrategy: 09:34:35,555 DEBUG DefaultAutoSubscriptionStrategy:0 - Autosubscribed to event Project.Domain.PM.Events.PortfolioCreatedEvent
NServiceBus.AutomaticSubscriptions.DefaultAutoSubscriptionStrategy: 09:34:35,555 [18] DEBUG NServiceBus.AutomaticSubscriptions.DefaultAutoSubscriptionStrategy [(null)] <(null)> - Autosubscribed to event Project.Domain.PM.Events.PortfolioCreatedEvent