//本段代码出处 无废话WCF入门教程系列

Uri baseAddress = new Uri("http://localhost:1234/My");

//创建宿主

using (ServiceHost host = new ServiceHost(typeof(Service1), baseAddress))

{

    //向宿主中添加终结点

    host.AddServiceEndpoint(typeof(IService1), new WSHttpBinding(), "");

    //将HttpGetEnabled属性设置为true

    ServiceMetadataBehavior smb = new ServiceMetadataBehavior();

    smb.HttpGetEnabled = true;

    //将行为添加到Behaviors中

    host.Description.Behaviors.Add(smb);

    //打开宿主

    host.Open();

    Console.WriteLine("WCF中的HTTP监听已启动....");

    Console.ReadLine();

    host.Close();

}