[英]WCF not processing MSMQ message with binary format
我有一个WCF Windows服务,可以检索MSMQ消息。 似乎未调用SubmitPurchaseOrderInMessage,在队列中也看不到任何消息。 代码如下所示。
WCF类:
public class OrderProcessorService : IOrderProcessor
{
[OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)]
[ServiceKnownType(typeof(MyOrder))]
public void SubmitPurchaseOrderInMessage(MsmqMessage<MyOrder> ordermsg)
{
MyOrder po = (MyOrder)ordermsg.Body;
Console.WriteLine("Processing id:{0}, name:{1} ", po.ID, po.Name);
}
public static void Main()
{
//init queue
if (!MessageQueue.Exists(Constants.QUEUE_PATH)) MessageQueue.Create(Constants.QUEUE_PATH, true);
//init wcf host via code
Uri baseUri = new Uri("http://localhost:7878/msmqsvc");
using (ServiceHost host = new ServiceHost(typeof(OrderProcessorService),baseUri))
{
//add metadata behavior
ServiceMetadataBehavior smb = new ServiceMetadataBehavior(){ HttpGetEnabled=true};
host.Description.Behaviors.Add(smb);
//add service endpoint
MsmqIntegrationBinding binding = new MsmqIntegrationBinding(MsmqIntegrationSecurityMode.None);
binding.SerializationFormat = MsmqMessageSerializationFormat.Binary;
host.AddServiceEndpoint(typeof(ClassLib.IOrderProcessor), binding, "msmq.formatname:DIRECT=OS:" + Constants.QUEUE_PATH);
host.Open();
// The service can now be accessed.
Console.WriteLine("The service is ready.");
Console.WriteLine("Press <ENTER> to terminate service.");
Console.ReadLine();
host.Close();
}
}
}
接口合同:
[ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
[ServiceKnownType(typeof(MyOrder))]
public interface IOrderProcessor
{
[OperationContract(IsOneWay = true, Action = "*")]
void SubmitPurchaseOrderInMessage(MsmqMessage<MyOrder> msg);
}
数组Parameters可以是客户端可以传递的任何动态可序列化类型。 我认为问题在于此参数。 如果我在客户端中删除了此参数和可序列化的属性以及binding.SerializationFormat,那么eveything可以正常工作。
可序列化的类:
[DataContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
[Serializable]
public class MyOrder
{
[DataMember]
public string ID;
[DataMember]
public string Name;
[DataMember]
public object[] Parameters;
}
[Serializable]
public class Transaction
{
public int Amount { get; set; }
}
客户:
class Program
{
static void Main(string[] args)
{
try
{
Run();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
static void Run()
{
MsmqIntegrationBinding binding = new MsmqIntegrationBinding();
binding.Security.Mode = MsmqIntegrationSecurityMode.None;
binding.Security.Transport.MsmqAuthenticationMode = MsmqAuthenticationMode.None;
binding.Security.Transport.MsmqProtectionLevel = System.Net.Security.ProtectionLevel.None;
binding.SerializationFormat = MsmqMessageSerializationFormat.Binary;
EndpointAddress address = new EndpointAddress("msmq.formatname:DIRECT=OS:" + Constants.QUEUE_PATH);
ChannelFactory<ClassLib.IOrderProcessor> channelFactory = new ChannelFactory<ClassLib.IOrderProcessor>(binding, address);
try
{
ClassLib.IOrderProcessor channel = channelFactory.CreateChannel();
MyOrder order = new MyOrder();
order.ID = DateTime.Now.Ticks.ToString();
order.Name = "Order_" + order.ID;
order.Parameters = new object[] { new Transaction { Amount = 108 }, new Transaction { Amount = 100 } };
MsmqMessage<MyOrder> ordermsg = new MsmqMessage<MyOrder>(order);
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required))
{
channel.SubmitPurchaseOrderInMessage(ordermsg);
scope.Complete();
}
Console.WriteLine("Order has been submitted:{0}", ordermsg);
}
catch(Exception ex)
{
}
finally
{
channelFactory.Close();
}
}
}
这里有一些要检查的东西:
在临时出站队列客户端中不检查任何消息。 如果此队列中有消息,则表明该消息无法在网络上传输。 因为您的队列是事务性的,这可能意味着MSDTC配置 (链接也支持2012)。
在服务端检查事务性死信队列中是否没有消息。 如果存在,则表示将消息传递到服务队列时出现问题。 可能是权限问题。 服务帐户在其队列上需要“ 接收消息”和“ 查看消息 ”,客户端帐户在目标队列上需要“ 发送消息” ,“ 获取权限 ”和“ 获取属性 ”。
在Windows事件日志中启用msmq日志记录 。 这会将所有与MSMQ相关的活动记录在框中。 服务端成功传输后,您应该在日志中看到2个事件: 消息来自网络 ,并且ID为ID的消息进入队列 。
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