服务契约：

namespace Contracts{    [System.ServiceModel.ServiceContract]    public interface ICalculator    {        [System.ServiceModel.OperationContract]        double Add(double ax, double bx);    }}

服务：

namespace Service{  public  class CalculatorService:ICalculator    {      public double Add(double ax, double bx)      {          return ax + bx;      }    }}

 自我寄宿：

using (ServiceHost host = new ServiceHost(typeof(CalculatorService)))            {                host.AddServiceEndpoint(typeof(ICalculator),                    new WSHttpBinding(),                    "http://127.0.0.1:8888/calculatorservice");                if(host.Description.Behaviors.Find
     
      ()==null)                {                    ServiceMetadataBehavior beavior = new ServiceMetadataBehavior();                    beavior.HttpGetEnabled = true;                    beavior.HttpGetUrl = new Uri("http://127.0.0.1:8888/calculatorservice/metadata");                    host.Description.Behaviors.Add(beavior);                }                host.Opened += delegate                {                    Console.WriteLine("该服务已经启动，按任意按钮停止");                };                host.Open();                Console.Read();            }
     

调用实例：

 

备注：在启动的服务的时候 [Windows7系统中] 要以管理员的身分启动。不然程序会抛出异常信息。。