化零为整WCF(5) - 宿主Hosting(宿主在IIS, Application, WAS, 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 类的新实例。 
         /// </summary> 
        [RunInstaller( true)] 
         public  class ProjectInstaller : Installer 
        { 
                 private ServiceProcessInstaller process; 
                 private ServiceInstaller service; 
 
                 /// <summary> 
                 /// 构造函数 
                 /// </summary> 
                 public ProjectInstaller() 
                { 
                        process =  new ServiceProcessInstaller(); 
                        process.Account = ServiceAccount.LocalSystem; 
                        service =  new ServiceInstaller(); 
                        service.ServiceName =  "WCF.ServiceHostByWindowsService"; 
                        service.Description =  "WCF服务宿主在WindowsService[webabcd测试用]"; 
                         base.Installers.Add(process); 
                         base.Installers.Add(service); 
                } 
        } 
 
         /// <summary> 
         /// Windows服务类 
         /// </summary> 
         public  class WindowsService : ServiceBase 
        { 
                 public ServiceHost serviceHost =  null; 
 
                 /// <summary> 
                 /// 主函数 
                 /// </summary> 
                 public  static  void Main() 
                { 
                        ServiceBase.Run( new WindowsService()); 
                } 
 
                 /// <summary> 
                 /// 构造函数 
                 /// </summary> 
                 public WindowsService() 
                { 
                         base.ServiceName =  "WCF.ServiceHostByWindowsService"; 
                } 
 
                 /// <summary> 
                 /// 启动Windows服务 
                 /// </summary> 
                 /// <param name="args">args</param> 
                 protected  override  void OnStart( string[] args) 
                { 
                         if (serviceHost !=  null) 
                        { 
                                serviceHost.Close(); 
                        } 
 
                         // 为WCF.ServiceLib.Sample.Hello创建ServiceHost 
                        serviceHost =  new ServiceHost( typeof(WCF.ServiceLib.Sample.Hello)); 
 
                        serviceHost.Open(); 
 
                        ServiceHost的几个事件（顾名思义） 
                } 
 
                 /// <summary> 
                 /// 停止Windows服务 
                 /// </summary> 
                 protected  override  void OnStop() 
                { 
                         if (serviceHost !=  null) 
                        { 
                                serviceHost.Close(); 
                                serviceHost =  null; 
                        } 
                } 
        } 
}