使用 nServiceBus 和 AzureDataBus 时出现空引用错误

Question

编辑这不是我问的关于第三方组件中空引用异常的重复问题。

我的数据总线配置为：

var config = new BusConfiguration();
config.AssembliesToScan(typeof(XXXXX).Assembly);

config.UseContainer<NinjectBuilder>((c)=>c.ExistingKernel(this.Kernel));
config.UsePersistence<RavenDBPersistence>();
config.UseTransport<MsmqTransport>();
config.UseSerialization<XmlSerializer>();
config.EnableInstallers();


var databus=config.UseDataBus<AzureDataBus>();
databus.ConnectionString(ConfigurationManager.
    ConnectionStrings["DataBus"].ConnectionString);


config.Conventions().
        DefiningDataBusPropertiesAs(p => p.Name == "Data" && p.PropertyType == typeof(Byte[]));


    var bus = NServiceBus.Bus.CreateSendOnly(config);

我有一条消息 class 为：

public class FileDeliveryMessage : ICommand
{

    public Byte[] Data { get; set; }
    public Guid WorkId { get; set; }
    public int ReportId { get; set; }

    public int Extension { get; set; }
    public int FileType { get; set; }
}

每当我发送消息时，我都会收到空引用错误。此错误发生在发送而不是处理程序

System.NullReferenceException: Object reference not set to an instance of an object. at NServiceBus.DataBusSendBehavior.Invoke(OutgoingContext context, Action next) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\DataBus\DataBusSendBehavior.cs:line 51 at NServiceBus.BehaviorChain1.InvokeNext(T context) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 107 at NServiceBus.BehaviorChain1.<>c__DisplayClass4_0.b__0() in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 95 at NServiceBus.PopulateAutoCorrelationHeadersForRepliesBehavior.Invoke(OutgoingContext context, Action next) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Sagas\PopulateAutoCorrelationHeadersForRepliesBehavior.cs:line 47 at NServiceBus.BehaviorChain1.InvokeNext(T context) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 107 at NServiceBus.BehaviorChain1.<>c__DisplayClass4_0.b__0() in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 95 at NServiceBus.BehaviorChain1.InvokeNext(T context) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 107 at NServiceBus.BehaviorChain1.<>c__DisplayClass4_0.b__0() in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 95 at NServiceBus.BehaviorChain1.InvokeNext(T context) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 107 at NServiceBus.BehaviorChain1.Invoke() in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\BehaviorChain.cs:line 52 at NServiceBus.Pipeline.PipelineExecutor.Execute[T](BehaviorChain`1 pipelineAction, T context) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\PipelineExecutor.cs:line 129 at NServiceBus.Pipeline.PipelineExecutor.InvokeSendPipeline(DeliveryOptions deliveryOptions, LogicalMessage message) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Pipeline\PipelineExecutor.cs:line 116 at NServiceBus.Unicast.UnicastBus.SendMessage(SendOptions sendOptions, LogicalMessage message) in C:\BuildAgent\work06e2123f54fce4\src\NServiceBus.Core\Unicast\UnicastBus.cs:line 610

Answer 1

发生这种情况是因为，我只包括了我自己的要扫描的程序集：

config.AssembliesToScan(typeof(XXXXX).Assembly);

更改为：

        IIncludesBuilder includesBuilder = AllAssemblies
                                            .Matching("NServiceBus")
                                            .And("XXXX.XXX");


        config.AssembliesToScan(includesBuilder);

使用 nServiceBus 和 AzureDataBus 时出现空引用错误

Null Reference error using nServiceBus and AzureDataBus

c#

nservicebus