当两个WCF应用程序想共享一个端口提供服务时，你会发现后一个启动的服务运行不了，会提示已经有应用程序在监听，如：
应用一
代码
ServiceHost host
=
new
ServiceHost(
typeof
(WCFPortSharing.AddService));
NetTcpBinding binding = new NetTcpBinding();
host.AddServiceEndpoint( typeof (WCFPortSharing.IAddService), binding, " net.tcp://127.0.0.1:4503/addService " );
host.Open();
NetTcpBinding binding = new NetTcpBinding();
host.AddServiceEndpoint( typeof (WCFPortSharing.IAddService), binding, " net.tcp://127.0.0.1:4503/addService " );
host.Open();
应用二
代码
ServiceHost host1
=
new
ServiceHost(
typeof
(WCFPortSharing.SubService));
NetTcpBinding binding1 = new NetTcpBinding();
host1.AddServiceEndpoint( typeof (WCFPortSharing.ISubService), binding1, " net.tcp://127.0.0.1:4503/subService " );
host1.Open();
NetTcpBinding binding1 = new NetTcpBinding();
host1.AddServiceEndpoint( typeof (WCFPortSharing.ISubService), binding1, " net.tcp://127.0.0.1:4503/subService " );
host1.Open();
如果想不冲突，需要开启WCF的端口共享，并启动一个服务Net.Tcp Port Sharing Service，此服务默认是禁止运行的，手动开启后，将服务配置加上
binding.PortSharingEnabled
=
true
;
这样：
代码
ServiceHost host
=
new
ServiceHost(
typeof
(WCFPortSharing.AddService));
NetTcpBinding binding = new NetTcpBinding();
binding.PortSharingEnabled = true ;
host.AddServiceEndpoint( typeof (WCFPortSharing.IAddService), binding, " net.tcp://127.0.0.1:4503/addService " );
host.Open();
NetTcpBinding binding = new NetTcpBinding();
binding.PortSharingEnabled = true ;
host.AddServiceEndpoint( typeof (WCFPortSharing.IAddService), binding, " net.tcp://127.0.0.1:4503/addService " );
host.Open();
本文转自wengyuli 51CTO博客，原文链接：http://blog.51cto.com/wengyuli/586701，如需转载请自行联系原作者
