WCF basic

WCF 's three essential component:

• A: adress    where message be exchange
• B: binding   chanel through the messages are trasmited
• C: contract   what the service can do

              server machine code:

                  using System.ServiceModel; using System.ServiceModel.Description; namespace EssentialWCF { [ServiceContract] public interface IStockService { [OperationContract] double GetPrice(string ticker); } public class StockService : IStockService { public double GetPrice(string ticker) { return 94.85; } } public class service { public static void Main() { ServiceHost serviceHost = new ServiceHost(typeof(StockService), new Uri("http://localhost:8000/EssentialWCF")); serviceHost.AddServiceEndpoint( typeof(IStockService), new BasicHttpBinding(), ""); ServiceMetadataBehavior behavior = new ServiceMetadataBehavior(); behavior.HttpGetEnabled = true; serviceHost.Description.Behaviors.Add(behavior); serviceHost.AddServiceEndpoint( typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexHttpBinding(), "mex"); serviceHost.Open(); // The service can now be accessed. Console.WriteLine("The services is ready. Press <ENTER> to terminate./n/n"); Console.ReadLine(); // Close the ServiceHostBase to shutdown the service. serviceHost.Close(); } } }

                          client code:

namespace Client { [ServiceContract] public interface IStockService { [OperationContract] double GetPrice(string ticker); } class Client { static void Main(string[] args) { ChannelFactory<IStockService> myChannelFactory = new ChannelFactory<IStockService>( new BasicHttpBinding(), new EndpointAddress("http://localhost/BasicIISHosting/ServiceInline.svc")); IStockService wcfClient = myChannelFactory.CreateChannel(); double p = wcfClient.GetPrice("msft"); Console.WriteLine("Price:{0}",p); } } }