F6 Team

最近很少在寫文章,也佷少在討論區解問題(因為工作很忙),所以沒什麼東西可以寫

這幾天無聊去看看WCF的東西,介紹給大家如何利用net.tcp傳輸協定來建置WCF Service

啓動WCF服務的方式有下列幾種方式：

1.利用Console或WinFrom方式
2.利用Windows Service方式
3.利用Web Server IIS方式

WCF支援的傳輸協定有下列幾種方式：

1.HTTP
2.net.tcp
3.net.pipe
4.net.msmq

存取WCF服務的Client端也可利用下列幾種方式：

1.WinForm or Console
2.ASP.NET or ASP.NET AJAX
3.WPF or Silverlight
...很多

首先準備下列專案：

WcfBase是給ConsoleHost與WinFormClient共用的
ConsoleHost是Server端
WinFormClient是Client端

Server端啓動服務利用ServiceHost
Client端呼叫服務利用ClientBase或ChannelFactory

此範例主要是利用Console來啓動WCF Service,利用WinForm來呼叫WCF Service

WcfBase(IHello.cs,Hello.cs)

IHello.cs

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ServiceModel; //加入System.ServiceModel參考 namespace WcfBase { [ServiceContract] public interface IHello { [OperationContract] string HelloWorld(); } }

Hello.cs

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace WcfBase { public class Hello : IHello { public string HelloWorld() { return "HelloWorld"; } } }

ConsoleHost(Program.cs,App.config)

Program.cs

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ServiceModel; //加入System.ServiceModel與WcfBase參考 namespace ConsoleHost { class Program { static void Main(string[] args) { //WCF Console Host //此種方式需App.Config ServiceHost host = new ServiceHost(typeof(WcfBase.Hello)); host.Open(); Console.WriteLine("WCF Service Start..."); Console.WriteLine("Press Enter to Stop WCF Service..."); Console.ReadLine(); host.Close(); //此種方式不需App.Config //ServiceHost host = new ServiceHost(typeof(WcfBase.Hello), new Uri("net.tcp://localhost:9000/")); //host.AddServiceEndpoint(typeof(WcfBase.IHello), new NetTcpBinding(), "HelloService"); //host.Open(); //Console.WriteLine("WCF Service Start..."); //Console.WriteLine("Press Enter to Stop WCF Service..."); //Console.ReadLine(); //host.Close(); } } }

App.config

<?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <services> <service name="WcfBase.Hello"> <endpoint address="HelloService" binding="netTcpBinding" contract="WcfBase.IHello"/> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:9000/"/> </baseAddresses> </host> </service> </services> </system.serviceModel> </configuration>

WinFormClient(FrmClient.cs,HelloClient.cs,App.config)

FrmClient.cs

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.ServiceModel; //加入System.ServiceModel與WcfBase參考 namespace WinFormClient { public partial class FrmClient : Form { public FrmClient() { InitializeComponent(); } private void btnClientBase_Click(object sender, EventArgs e) { //此種方式需App.Config using (HelloClient client = new HelloClient()) { client.Open(); MessageBox.Show(client.HelloWorld()); } //此種方式不需App.Config //using (HelloClient client = new HelloClient( new NetTcpBinding(),new EndpointAddress("net.tcp://localhost:9000/HelloService"))) //{ // client.Open(); // MessageBox.Show(client.HelloWorld()); //} } private void btnChannelFactory_Click(object sender, EventArgs e) { //此種方式需App.Config using (ChannelFactory<WcfBase.IHello> channel = new ChannelFactory<WcfBase.IHello>("Hello"))//指定ConfigName { WcfBase.IHello client = channel.CreateChannel();//CreateChannel後就會Open Channel MessageBox.Show(client.HelloWorld()); } //此種方式不需App.Config //using (ChannelFactory<WcfBase.IHello> channel = new ChannelFactory<WcfBase.IHello>(new NetTcpBinding(), new EndpointAddress("net.tcp://localhost:9000/HelloService"))) //{ // WcfBase.IHello client = channel.CreateChannel();//CreateChannel後就會Open Channel // MessageBox.Show(client.HelloWorld()); //} } } }

HelloClient.cs

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace WinFormClient { /// <summary> /// 利用此類別來呼叫WCF Service, /// </summary> public class HelloClient : System.ServiceModel.ClientBase<WcfBase.IHello>, WcfBase.IHello { //沒有傳入任何Binding與EndpointAddress,會找App.Config的設定 public HelloClient() { } //依使用者定義的Binding與EndpointAddress,來設定 public HelloClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) : base(binding, remoteAddress) { } public string HelloWorld() { return base.Channel.HelloWorld(); } } }

App.config

<?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <client> <endpoint name="Hello" address="net.tcp://localhost:9000/HelloService" binding="netTcpBinding" contract="WcfBase.IHello"> </endpoint> </client> </system.serviceModel> </configuration>

設定Config可以利用SvcConfigEditor.exe工具

參考網址：
http://msdn.microsoft.com/zh-tw/library/bb332338.aspx
http://www.devx.com/codemag/Article/33655/1763/page/1
http://www.codeproject.com/KB/WCF/WCFMultipleHosting.aspx
http://msdn.microsoft.com/zh-tw/library/ms732015.aspx