WCF从理论到实践(16):操作重载（带视频+ppt+源码）

public int Add(int a, int b) 
{ 
return a + b; 
} 
public double Add(double a, double b) 
{ 
return a + b; 
} 

[ServiceContract] 
public interface IService 
{ 
[OperationContract] 
int Add(int a, int b); 
[OperationContract] 
double Add(double a, double b); 
} 

而服务实现为： 

public class Service : IService 
{ 
public int Add(int a, int b) 
{ 
return a + b; 
} 
public double Add(double a, double b) 
{ 
return a + b; 
} 
} 

using(ServiceHost host = new ServiceHost(typeof(Service),new Uri("net.tcp://127.0.0.1:12345"))) 
{ 
NetTcpBinding bind = new NetTcpBinding(); 
host.AddServiceEndpoint(typeof(IService), bind, ""); 
//下面代码的目的是添加一个MeatedataExchage的EndPoint 
BindingElement bindElement = new TcpTransportBindingElement(); 
CustomBinding metaBind = new CustomBinding(bindElement); 
ServiceMetadataBehavior metaBehavior = host.Description.Behaviors.Find<servicemetadatabehavior>(); 
if (metaBehavior == null) 
{ 
metaBehavior = new ServiceMetadataBehavior(); 
host.Description.Behaviors.Add(metaBehavior); 
} 
host.AddServiceEndpoint(typeof(IMetadataExchange), metaBind, "MEX"); 
host.Open(); 
Console.WriteLine("服务已经运行！"); 
Console.Read(); 
}