(宿主在IIS, Application, WAS, WindowsService)
介紹
WCF(Windows Communication Foundation) - 宿主(Hosting)：WCF服務可以宿主在IIS, Application, WAS, WindowsService。本文以宿主在WindowsService為例。
示例
1、服務
IHello.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
namespace WCF.ServiceLib.Sample
{
/**//// <summary>
/// IHello接口
/// </summary>
[ServiceContract]
public interface IHello
{
/**//// <summary>
/// 打招呼方法
/// </summary>
/// <param name="name">人名</param>
/// <returns></returns>
[OperationContract]
string SayHello(string name);
}
}
Hello.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
namespace WCF.ServiceLib.Sample
{
/**//// <summary>
/// Hello類
/// </summary>
public class Hello : IHello
{
/**//// <summary>
/// 打招呼方法
/// </summary>
/// <param name="name">人名</param>
/// <returns></returns>
public string SayHello(string name)
{
return "Hello: " + name;
}
}
}
2、宿主
Hello.cs(WindowsService)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using System.Configuration;
using System.Configuration.Install;
using System.ServiceModel;
using System.ServiceProcess;
namespace WCF.ServiceHostByWindowsService.Sample
{
/**//// <summary>
/// 初始化 System.Configuration.Install.Installer 類的新實例。
/// </summary>
[RunInstaller(true)]
public class ProjectInstaller : Installer
{
private ServiceProcessInstaller process;
private ServiceInstaller service;
/**//// <summary>
/// 構造函數
/// </summary>
public ProjectInstaller()
{
process = new ServiceProcessInstaller();
process.Account = ServiceAccount.LocalSystem;
service = new ServiceInstaller();
service.ServiceName = "WCF.ServiceHostByWindowsService";
service.Description = "WCF服務宿主在WindowsService[webabcd測試用]";
base.Installers.Add(process);
base.Installers.Add(service);
}
}
/**//// <summary>
/// Windows服務類
/// </summary>
public class WindowsService : ServiceBase
{
public ServiceHost serviceHost = null;
/**//// <summary>
/// 主函數
/// </summary>
public static void Main()
{
ServiceBase.Run(new WindowsService());
}
/**//// <summary>
/// 構造函數
/// </summary>
public WindowsService()
{
base.ServiceName = "WCF.ServiceHostByWindowsService";
}
/**//// <summary>
/// 啟動Windows服務
/// </summary>
/// <param name="args">args</param>
protected override void OnStart(string[] args)
{
if (serviceHost != null)
{
serviceHost.Close();
}
// 為WCF.ServiceLib.Sample.Hello創建ServiceHost
serviceHost = new ServiceHost(typeof(WCF.ServiceLib.Sample.Hello));
serviceHost.Open();
ServiceHost的幾個事件（顧名思義）#region ServiceHost的幾個事件（顧名思義）
/**//*
serviceHost.Opening +=
serviceHost.Opened +=
serviceHost.Closing +=
serviceHost.Faulted +=
serviceHost.UnknownMessageReceived +=
*/
#endregion
}
/**//// <summary>
/// 停止Windows服務
/// </summary>
protected override void OnStop()
{
if (serviceHost != null)
{
serviceHost.Close();
serviceHost = null;
}
}
}
}
App.config
<?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <services> <!--name - 提供服務的類名--> <!--behaviorConfiguration - 指定相關的行為配置--> <service name="WCF.ServiceLib.Sample.Hello" behaviorConfiguration="SampleBehavior"> <!--address - 服務地址--> <!--binding - 通信方式--> <!--contract - 服務契約--> <endpoint address="" binding="wsHttpBinding" contract="WCF.ServiceLib.Sample.IHello" /> <!--元數據交換的endpoint--> <!--注：address是mex，它會和host/baseAddresses節點中的baseAddress做拼接，即提供元數據交換的地址為：http://localhost:12345/Binding/mex--> <endpoint binding="mexHttpBinding" contract="IMetadataExchange" address="mex" /> <host> <baseAddresses> <add baseAddress="http://localhost:11233/ServiceHostByWindowsService/"/> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="SampleBehavior"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="False" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration>
3、客戶端
Hello.aspx
<%@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="Hello.aspx.cs" Inherits="Hosting_Hello" Title="宿主Hosting(服務宿主在WindowsService)" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> <div> <ul> <li style="color: Red;">本例為宿主在WindowsService的示例</li> <li>宿主在IIS請參見本解決方案的ServiceHost項目</li> <li>宿主在應用程序請參見本解決方案的ServiceHost2項目</li> <li>應用程序自宿主就是把本解決方案的ServiceLib項目和ServiceHost2項目結合在一起</li> <li>宿主在Windows Activation Services(WAS)，因為我沒有環境，就先不寫示例了</li> </ul> </div> <asp:TextBox ID="txtName" runat="server" Text="webabcd" /> <asp:Button ID="btnSayHello" runat="server" Text="Hello" OnClick="btnSayHello_Click" /> </asp:Content>
Hello.aspx.cs
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class Hosting_Hello : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSayHello_Click(object sender, EventArgs e)
{
var proxy = new HostingByWindowsService.HelloClient();
Page.ClientScript.RegisterStartupScript(
this.GetType(),
"js",
string.Format("alert('{0}')", proxy.SayHello(txtName.Text)),
true);
proxy.Close();
}
}
Web.config
<?xml version="1.0"?> <configuration> <system.serviceModel> <client> <!--address - 服務地址--> <!--binding - 通信方式--> <!--contract - 服務契約--> <endpoint address="http://localhost:11233/ServiceHostByWindowsService/" binding="wsHttpBinding" contract="Sample.IHello" /> </client> </system.serviceModel> </configuration>
運行結果：
啟動"WCF.ServiceHostByWindowsService"服務，單擊"Hello"按鈕後彈出提示框，顯示"Hello: webabcd"
OK
