【精华】WCF IIS宿主 多服务 不同binding 报错的问题

[wosliuxiang]

报错信息：协定需要双工，但是绑定“BasicHttpBinding”不支持它或者因配置不正确而无法支持它。

怀疑：难道是IIS宿主不支持多种不同的binding？

服务端配置web.config

<system.serviceModel>
		<behaviors>
			<serviceBehaviors>
				<behavior name="webbehavior">
				 <serviceMetadata httpGetEnabled="true" />
				 <serviceDebug includeExceptionDetailInFaults="true" />
				</behavior>
			</serviceBehaviors>
		</behaviors>
		<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
		<services>
			<service behaviorConfiguration="webbehavior" name="nt.web.WCF.User">
				<host>
					<baseAddresses>
						<add baseAddress="http://192.168.0.212:1912/WCF/"/>
					</baseAddresses>
				</host>
				<endpoint binding="basicHttpBinding" contract="nt.WcfContract.IUser" name="user_contract" address="User.svc"></endpoint>
			</service>
			<service behaviorConfiguration="webbehavior" name="nt.web.WCF.Communication">
				<host>
					<baseAddresses>
						<add baseAddress="http://192.168.0.212:1912/WCF/"/>
					</baseAddresses>
				</host>
				<endpoint binding="wsDualHttpBinding" contract="nt.WcfContract.ICommunicationContract" name="user_communication" address="Communication.svc"></endpoint>
			</service>
		</services>
	</system.serviceModel>

服务端契约

[ServiceContract(CallbackContract = typeof(IServerCallback))]
    public interface ICommunicationContract
    {
        [OperationContract(IsOneWay = true)]
        void HeartBeat(Model_User user);

        [OperationContract(IsOneWay = true)]
        void LoginOut();
    }

契约实现

[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple, ConfigurationName = "user_communication")]
    public class Communication : ICommunicationContract
    {
        
        public void HeartBeat(WCFModel.Model_User user)
        {
            //Logic_DesktopUser.UserHeartBeat(user);

        }

        public void LoginOut()
        {
            //Logic_DesktopUser.LoginOut(user);
            var callback = OperationContext.Current.GetCallbackChannel<nt.WcfContract.IServerCallback>();
            callback.CallBack();

        }
    }

客户端调用

DuplexChannelFactory<nt.WcfContract.ICommunicationContract> duplex = new DuplexChannelFactory<ICommunicationContract>(new InstanceContext(new ServerCallback()), "user_communication");
            var bll = duplex.CreateChannel();
            bll.LoginOut();

[newxdlysk]

报错信息：协定需要双工，但是绑定“BasicHttpBinding” 报错很明白了，basicHttpBinding不支持双工通信 用WSDualHttpBinding和NetTcpBinding这两个支持双工通信

[wosliuxiang]

引用 1 楼 newxdlysk 的回复:

报错信息：协定需要双工，但是绑定“BasicHttpBinding” 报错很明白了，basicHttpBinding不支持双工通信 用WSDualHttpBinding和NetTcpBinding这两个支持双工通信

我配置的是WSDualHttpBinding啊