1
我的WCF服務器是這樣工作的:你可以通過調用服務方法訂閱它們,比如Subscribe()。他們會將您的結果發回給回調通道,說MessageReceived(字符串消息)。WCF RoutingService如何從具有相同合同的兩個不同WCF服務器向客戶端回送消息?
我現在的問題是,我只從一個服務端點獲取回調消息,而不是兩者。事實上,僅僅通過調試,我發現我的第二個服務甚至沒有收到請求。有誰知道問題是什麼?這裏是我的代碼(注意,我在serviceAddresses線二的net.tcp地址):
private void StartAggregatorHost(List<string> serviceAddresses)
{
// Create a new service host for the routing service (note that RoutingService is a pre-defined Microsoft service model type which routes SOAP messages).
aggregatorHost = new ServiceHost(typeof(RoutingService));
// Set up the router address. A logger client will now connect to this address to get logged messages.
string fqdn = System.Net.Dns.GetHostEntry("localhost").HostName;
string routerAddress = string.Format("net.tcp://{0}:2099/LogAggregator", fqdn);
// Set up our router binding.
NetTcpBinding routerBinding = new NetTcpBinding(SecurityMode.None, true);
routerBinding.SendTimeout = new TimeSpan(0, 1, 0);
routerBinding.ReceiveTimeout = new TimeSpan(25, 0, 0);
routerBinding.MaxReceivedMessageSize = int.MaxValue;
routerBinding.MaxConnections = int.MaxValue;
routerBinding.ListenBacklog = int.MaxValue;
routerBinding.ReliableSession.Enabled = true;
routerBinding.ReliableSession.Ordered = true;
routerBinding.ReliableSession.InactivityTimeout = new TimeSpan(15, 0, 0, 0);
// Define the type of router in use. For duplex sessions like in our case, we want to use the IDuplexSessionRouter.
Type contractType = typeof(IDuplexSessionRouter);
// Add the endpoint that the router will use to recieve and relay messages. Note the use of System.ServiceModel.Routing.IDuplexSessionRouter.
aggregatorHost.AddServiceEndpoint(contractType, routerBinding, routerAddress);
// Create the endpoint list that contains the service endpoints we want to route to.
List<ServiceEndpoint> endpointList = new List<ServiceEndpoint>();
foreach (string serverAddress in serviceAddresses)
{
// Set up our server binding(s) for each server.
NetTcpBinding serverBinding = new NetTcpBinding(SecurityMode.None, true);
serverBinding.SendTimeout = new TimeSpan(0, 1, 0);
serverBinding.ReceiveTimeout = new TimeSpan(25, 0, 0);
serverBinding.MaxReceivedMessageSize = int.MaxValue;
serverBinding.MaxConnections = 1;
serverBinding.ListenBacklog = int.MaxValue;
serverBinding.ReliableSession.Enabled = true;
serverBinding.ReliableSession.Ordered = true;
serverBinding.ReliableSession.InactivityTimeout = new TimeSpan(15, 0, 0, 0);
// Create the server endpoint the router will route messages to and from.
ContractDescription contract = ContractDescription.GetContract(contractType);
ServiceEndpoint server = new ServiceEndpoint(contract, serverBinding, new EndpointAddress(serverAddress));
// Add the server to the list of endpoints.
endpointList.Add(server);
}
// Create a new routing configuration object.
RoutingConfiguration routingConfiguration = new RoutingConfiguration();
// Add a MatchAll filter to the Router's filter table. Map it to the endpoint list defined earlier. When a message matches this filter, it will be sent to the endpoint contained in the list.
routingConfiguration.FilterTable.Add(new MatchAllMessageFilter(), endpointList);
// Attach the behavior to the service host.
aggregatorHost.Description.Behaviors.Add(new RoutingBehavior(routingConfiguration));
// Open the service host.
aggregatorHost.Open();
m_eventLog.WriteEntry(string.Format("Log aggregator service hosted at {0}.", routerAddress), EventLogEntryType.Information);
}
所以再次...這就是我想要的:
CLIENT ---REQ---> ROUTER ---REQ---> SVC1
---REQ---> SVC2
CLIENT <---CALLBACK1--- ROUTER <---CALLBACK1--- SVC1
<---CALLBACK2--- <---CALLBACK2--- SVC2
這是我「M獲得(即使我添加第二個服務,我的路由器似乎它甚至不調用它的服務方法):
CLIENT ---REQ---> ROUTER ---REQ---> SVC1
CLIENT <---CALLBACK--- ROUTER <---CALLBACK--- SVC1
您可以檢查的幾件事: - 當您嘗試手動調用它們時,SVC1和SVC2是否正確運行? - 嘗試逐個添加服務端點而不是添加列表 - 嘗試指定添加到FilterTable時的優先級(SVC1和SVC2的優先級相同) - 嘗試首先儘快使用XML路由配置文件因爲它的工作切換到代碼 – MaxSC
@ MaxS-Betclic - 發佈此作爲答案現在,你的英雄。這是我錯過的優先事項。我猜想傳入列表會自動生成優先級,因此您需要逐個添加每個服務並指定其優先級:routingConfiguration.FilterTable.Add(new MatchAllMessageFilter(),new List {yourService},1); –
Alexandru
不客氣! – MaxSC