MSDN上面的WCF入门教程练习

http://msdn.microsoft.com/zh-cn/library/ms734712.aspx

如何：定义服务协定

如何：实现服务协定

如何：承载和运行基本的服务

如何：创建客户端

如何：配置客户端

如何：使用客户端

照着说明测试了一下：

一、创建解决方案WCFtest

二、创建服务端

1、在WCFtest下添加一个“控制台应用程序”，命名为Service

2、修改默认的命名空间为 Microsoft.ServiceModel.Samples

3、添加引用System.ServiceModel.dll

4、编写Program.cs代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Description;
namespace Microsoft.ServiceModel.Samples
{
    [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
    public interface ICalculator
    {
        [OperationContract]
        double Add(double n1, double n2);
        [OperationContract]
        double Subtract(double n1, double n2);
        [OperationContract]
        double Multiply(double n1, double n2);
        [OperationContract]
        double Divide(double n1, double n2);
    }
    public class CalculatorService : ICalculator
    {
        public double Add(double n1, double n2)
        {
            double result = n1 + n2;
            Console.WriteLine("Received Add({0},{1})", n1, n2);
            // Code added to write output to the console window.
            Console.WriteLine("Return: {0}", result);
            return result;
        }
        public double Subtract(double n1, double n2)
        {
            double result = n1 - n2;
            Console.WriteLine("Received Subtract({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
        public double Multiply(double n1, double n2)
        {
            double result = n1 * n2;
            Console.WriteLine("Received Multiply({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
        public double Divide(double n1, double n2)
        {
            double result = n1 / n2;
            Console.WriteLine("Received Divide({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            // Step 1 of the address configuration procedure: Create a URI to serve as the base address.
            Uri baseAddress = new Uri("http://localhost:8000/ServiceModelSamples/Service");
            // Step 2 of the hosting procedure: Create ServiceHost
            ServiceHost selfHost = new ServiceHost(typeof(CalculatorService), baseAddress);
            try
            {
                // Step 3 of the hosting procedure: Add a service endpoint.
                selfHost.AddServiceEndpoint(
                    typeof(ICalculator),
                    new WSHttpBinding(),
                    "CalculatorService");
                // Step 4 of the hosting procedure: Enable metadata exchange.
                ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
                smb.HttpGetEnabled = true;
                selfHost.Description.Behaviors.Add(smb);
                // Step 5 of the hosting procedure: Start (and then stop) the service.
                selfHost.Open();
                Console.WriteLine("The service is ready.");
                Console.WriteLine("Press <ENTER> to terminate service.");
                Console.WriteLine();
                Console.ReadLine();
                // Close the ServiceHostBase to shutdown the service.
                selfHost.Close();
            }
            catch (CommunicationException ce)
            {
                Console.WriteLine("An exception occurred: {0}", ce.Message);
                selfHost.Abort();
            }
        }
    }
}

验证服务是否正常运行：

1、按F5启动或者在项目目录下的bin\Debug目录下打开service.exe

2、打开浏览器并输入 http://localhost:8000/ServiceModelSamples/Service

三、创建客户端

1、在WCFtest下添加一个“控制台应用程序”，命名为Client

2、 添加引用System.ServiceModel.dll

3、打开“Visual Studio 2010 命令提示”，运行ServiceModel 元数据实用工具 (Svcutil.exe) ，在项目Client目录下创建客户端代码和配置文件：

C:\Documents and Settings\lc\My Documents\Visual Studio 2010\Projects\WCFte
st\Client>svcutil.exe /language:cs /out:generatedProxy.cs /config:app.config htt
p://localhost:8000/ServiceModelSamples/service

4、在解决方案资源管理器中点击“显示所有文件”，把隐藏的app.config、generatedProxy.cs右键包括在项目Client中

5、编写Program.cs代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Description;
namespace Client
{
    class Program
    {
        static void Main(string[] args)
        {
            //Step 1: Create an endpoint address and an instance of the WCF Client.
            CalculatorClient client = new CalculatorClient();
           
            // Step 2: Call the service operations.
            // Call the Add service operation.
            double value1 = 100.00D;
            double value2 = 15.99D;
            double result = client.Add(value1, value2);
            Console.WriteLine("Add({0},{1}) = {2}", value1, value2, result);
            // Call the Subtract service operation.
            value1 = 145.00D;
            value2 = 76.54D;
            result = client.Subtract(value1, value2);
            Console.WriteLine("Subtract({0},{1}) = {2}", value1, value2, result);
            // Call the Multiply service operation.
            value1 = 9.00D;
            value2 = 81.25D;
            result = client.Multiply(value1, value2);
            Console.WriteLine("Multiply({0},{1}) = {2}", value1, value2, result);
            // Call the Divide service operation.
            value1 = 22.00D;
            value2 = 7.00D;
            result = client.Divide(value1, value2);
            Console.WriteLine("Divide({0},{1}) = {2}", value1, value2, result);
            //Step 3: Closing the client gracefully closes the connection and cleans up resources.
            client.Close();
            Console.WriteLine();
            Console.WriteLine("Press <ENTER> to terminate client.");
            Console.ReadLine();
        }
    }
}

最后，先打开Server\bin\Debug下的Service.exe运行服务端，再打开Client\bin\Debug下的Client.exe运行客户端。

显示如下：