我正在使用 Net.tcp Binding 开发 WCF 服务。该服务托管在辅助角色的 Run 方法上。
当部署到我的 Azure 帐户时,它可以正常工作,但在运行时会引发异常:
由于目标机器主动拒绝,无法建立连接
有时当我更改端口号时,它可以正常工作几次,但随后它再次拒绝连接,我不得不再次更改端口号......
我在windows防火墙中做了例外,也关闭了防火墙,但它不起作用。
这可能是对 Windows 7 的一些限制吗?任何帮助表示赞赏。谢谢
编辑:我正在添加客户端和服务器代码以进行澄清。
服务配置:
using (ServiceHost host = new ServiceHost(typeof(XMPPService)))
{
string ip = RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["tcpinput"].IPEndpoint.Address.ToString();
int tcpport = RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["tcpinput"].IPEndpoint.Port;
int mexport = RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["mexinput"].IPEndpoint.Port;
ServiceMetadataBehavior metadatabehavior = new ServiceMetadataBehavior();
host.Description.Behaviors.Add(metadatabehavior);
ServiceDebugBehavior behavior = host.Description.Behaviors.Find<ServiceDebugBehavior>();
ServiceThrottlingBehavior tho = new ServiceThrottlingBehavior();
tho.MaxConcurrentCalls = 10000;
tho.MaxConcurrentInstances = 1000;
tho.MaxConcurrentSessions = 1000;
host.Description.Behaviors.Add(tho);
if (behavior == null)
{
host.Description.Behaviors.Add(new ServiceDebugBehavior() { IncludeExceptionDetailInFaults = true });
}
else
{
if (!behavior.IncludeExceptionDetailInFaults)
{
behavior.IncludeExceptionDetailInFaults = true;
}
}
Binding mexBinding = MetadataExchangeBindings.CreateMexTcpBinding();
string mexlistenurl = string.Format("net.tcp://{0}:{1}/XMPPServiceMetaDataEndpoint", ip, mexport);
string mexendpointurl = string.Format("net.tcp://{0}:{1}/XMPPServiceMetaDataEndpoint", ip, mexport);
host.AddServiceEndpoint(typeof(IMetadataExchange), mexBinding, mexendpointurl, new Uri(mexlistenurl));
NetTcpBinding tcpBinding = new NetTcpBinding(SecurityMode.None);
tcpBinding.CloseTimeout = TimeSpan.FromMinutes(2);
tcpBinding.ReceiveTimeout = TimeSpan.FromDays(23);
tcpBinding.OpenTimeout = TimeSpan.FromMinutes(3);
tcpBinding.SendTimeout = TimeSpan.FromMinutes(1);
tcpBinding.PortSharingEnabled = true;
tcpBinding.MaxConnections = 10000;
tcpBinding.MaxConnections = 100;
// tcpBinding.ListenBacklog = 1000000;
tcpBinding.ReliableSession.InactivityTimeout = TimeSpan.FromSeconds(90);
tcpBinding.ReliableSession.Enabled = true;
// Add the endpoint for MyService
string listenurl = string.Format("net.tcp://{0}:{1}/ServiceEndpoint", ip, tcpport);
string endpointurl = string.Format("net.tcp://{0}:{1}/ServiceEndpoint", ip, tcpport);
host.AddServiceEndpoint(typeof(IXMPPService), tcpBinding, endpointurl, new Uri(listenurl));
host.Open();
Thread.Sleep(Timeout.Infinite);
}
客户:
AppService() //private constructor
{
client = new ServiceRef.ServiceClient();
}
服务电话:
bool isAvailable = false;
try
{
isAvailable=client.IsAvailable(_ixo.IMBot.IMEmail, _ixo.Operator.IMClients.First().IMEmail);
}
catch
{
if (client.InnerChannel.State == System.ServiceModel.CommunicationState.Faulted)
{
client.InnerChannel.Abort();
client = new ServiceRef.ServiceClient();
}
}