C# 操作IIS -App & AppPools

 using System;
 using System.DirectoryServices;
 using System.Management;
 using Microsoft.Web.Administration;

 namespace ConsoleApplication_IsNullTest
 {
     /// <summary>
     /// IIS Helper.
     /// </summary>
     public class IISHelper
     {

         private static string siteName = "siteName";
         private static string sitePath = "sitePath";
         private static string serverId = "";
         private static string runtimeVersion="v4.0";

         public static string RuntimeVersion
         {
             get { return runtimeVersion; }
         }

         public static DirectoryEntry iisSite = new DirectoryEntry("IIS://localhost/W3SVC", "UserName", "Userpwd");

         private static ManagementScope scope = null;

         public IISHelper()
         {
             scope = new ManagementScope("ConfigManager.ManagementScopePath");
             if (scope.IsConnected == false)
             {
                 scope.Connect();
             }
         }

         /// <summary>
         /// 创建应用程序池
         /// </summary>
         /// <param name="AppPoolName">程序池名</param>
         /// <param name="PipelineModel">Managed pipeline model.</param>
         public static void CreateAppPool(string AppPoolName, ManagedPipelineMode pipelineMode)
         {
             DirectoryEntry newpool;
             DirectoryEntry apppools = new DirectoryEntry("IIS://localhost/W3SVC/AppPools");
             newpool = apppools.Children.Add(AppPoolName, "IIsApplicationPool");
             newpool.Properties["ManagedRuntimeVersion"].Value = runtimeVersion;
             newpool.Properties["ManagedPipelineMode"].Value = ManagedPipelineMode.Integrated;
             newpool.CommitChanges();
         }

         /// <summary>
         /// 创建site
         /// </summary>
         public static void CreateWebSite(Object site)
         {
             ManagementObject manage = new ManagementObject(scope, new ManagementPath(@"IIsWebService='W3SVC'"), null);
             ManagementBaseObject inputParameters = manage.GetMethodParameters("CreateNewSite");
             ManagementBaseObject[] serverBinding = new ManagementBaseObject[];
             serverBinding[] = CreateServerBinding("", "127.0.0.1", "");
             inputParameters["ServerComment"] = siteName;
             inputParameters["ServerBindings"] = serverBinding;
             inputParameters["PathOfRootVirtualDir"] = sitePath;
             inputParameters["ServerId"] = serverId;
             try
             {
                 manage.InvokeMethod("CreateNewSite", inputParameters, null);
             }
             catch
             {
                 throw new Exception("createNewSite");
             }
             SetAppToPool(siteName, serverId);

             System.Threading.Thread.Sleep();

             //启动web site
             string serverName = "W3SVC/" + serverId;
             ManagementObject manageSite = new ManagementObject(scope, new ManagementPath(@"IIsWebServer='" + serverName + "'"), null);
             manageSite.InvokeMethod("Start", null);
         }

         /// <summary>
         /// 关联应用程序池
         /// </summary>
         /// <param name="appPoolName"></param>
         /// <param name="serverId"></param>
         private static void SetAppToPool(string appPoolName, string serverId)
         {
             string path = string.Format("IIS://localhost/W3SVC/{0}/Root", serverId);
             DirectoryEntry entry = new DirectoryEntry(path);
             entry.Properties["AppPoolId"].Value = appPoolName;
             entry.CommitChanges();
             entry.Close();
         }

         /// <summary>
         /// Get site url前缀
         /// </summary>
         /// <param name="HostName"></param>
         /// <param name="IP"></param>
         /// <param name="Port"></param>
         /// <returns></returns>
         private static ManagementObject CreateServerBinding(string HostName, string IP, string Port)
         {
             try
             {
                 ManagementClass classBinding = new ManagementClass(scope, new ManagementPath("ServerBinding"), null);
                 ManagementObject serverBinding = classBinding.CreateInstance();
                 serverBinding.Properties["Hostname"].Value = HostName;
                 serverBinding.Properties["IP"].Value = IP;
                 serverBinding.Properties["Port"].Value = Port;
                 serverBinding.Put();
                 return serverBinding;
             }
             catch
             {
                 return null;
             }
         }

         /// <summary>
         /// 创建web site 子项的site $ 应用程序池
         /// </summary>
         /// <param name="site"></param>
         /// <param name="serviceName"></param>
         /// <param name="AppolName"></param>
         public static void CreateApplication(Object site, string serviceName, string AppolName)
         {
             DirectoryEntry defaultWebSite = GetWebisteDirectory("FUSiteName");//父级site name
             if (defaultWebSite != null)
             {
                 DirectoryEntry defaultWebSiteRoot = new DirectoryEntry(defaultWebSite.Path + "/Root");

                 //Create and setup new virtual directory
                 DirectoryEntry virtualDirectory = defaultWebSiteRoot.Children.Add(siteName, "IIsWebVirtualDir");

                 virtualDirectory.Properties["Path"][] = sitePath;
                 virtualDirectory.Properties["AppFriendlyName"][] = siteName;
                 virtualDirectory.CommitChanges();

                 virtualDirectory.Invoke("AppCreate", );
                 object[] param = { , siteName, true };
                 virtualDirectory.Invoke("AppCreate3", param);
                 virtualDirectory.Properties["AppPoolId"].Value = AppolName;

                 string appPoolPath = @"IIS://localhost/W3SVC/AppPools/" + AppolName;
                 try
                 {
                     var appPoolEntry = new DirectoryEntry(appPoolPath);
                     appPoolEntry.Properties["ManagedRuntimeVersion"].Value = runtimeVersion;
                     appPoolEntry.Properties["ManagedPipelineMode"].Value = ManagedPipelineMode.Integrated;
                     appPoolEntry.Invoke("SetInfo", null);
                     appPoolEntry.CommitChanges();
                     appPoolEntry.Close();
                 }
                 catch
                 {

                 }
                 virtualDirectory.CommitChanges();
                 virtualDirectory.Close();
             }
         }

         /// <summary>
         /// Get web site directory.
         /// </summary>
         /// <param name="websiteName"></param>
         /// <returns></returns>
         private static DirectoryEntry GetWebisteDirectory(string websiteName)
         {
             DirectoryEntries des = iisSite.Children;
             foreach (DirectoryEntry sub in des)
             {
                 if (sub.SchemaClassName == "IIsWebServer" && sub.Properties["ServerComment"].Contains(websiteName.Trim()))
                 {

                     return sub;
                 }
             }
             return null;
         }
     }
 }