72

如何从 C# (.net 2) 重新启动(回收)IIS 应用程序池?

感谢您发布示例代码吗?

4

10 回答 10

86

开始了:

HttpRuntime.UnloadAppDomain();
于 2009-07-04T09:45:24.037 回答
57

如果您在IIS7上,那么如果它停止,它将执行此操作。我假设您可以调整以重新启动而无需显示。

// Gets the application pool collection from the server.
[ModuleServiceMethod(PassThrough = true)]
public ArrayList GetApplicationPoolCollection()
{
    // Use an ArrayList to transfer objects to the client.
    ArrayList arrayOfApplicationBags = new ArrayList();

    ServerManager serverManager = new ServerManager();
    ApplicationPoolCollection applicationPoolCollection = serverManager.ApplicationPools;
    foreach (ApplicationPool applicationPool in applicationPoolCollection)
    {
        PropertyBag applicationPoolBag = new PropertyBag();
        applicationPoolBag[ServerManagerDemoGlobals.ApplicationPoolArray] = applicationPool;
        arrayOfApplicationBags.Add(applicationPoolBag);
        // If the applicationPool is stopped, restart it.
        if (applicationPool.State == ObjectState.Stopped)
        {
            applicationPool.Start();
        }

    }

    // CommitChanges to persist the changes to the ApplicationHost.config.
    serverManager.CommitChanges();
    return arrayOfApplicationBags;
}

如果您使用的是IIS6,我不太确定,但您可以尝试获取 web.config 并编辑修改日期或其他内容。对 web.config 进行编辑后,应用程序将重新启动。

于 2008-10-30T12:00:58.637 回答
8

下面的代码适用于 IIS6。未在 IIS7 中测试。

using System.DirectoryServices;

...

void Recycle(string appPool)
{
    string appPoolPath = "IIS://localhost/W3SVC/AppPools/" + appPool;

    using (DirectoryEntry appPoolEntry = new DirectoryEntry(appPoolPath))
    {
            appPoolEntry.Invoke("Recycle", null);
            appPoolEntry.Close();
    }
}

您也可以将“回收”更改为“开始”或“停止”。

于 2009-01-30T17:14:05.813 回答
7

我的代码采用了稍微不同的方法来回收应用程序池。需要注意的几点与其他人提供的不同:

1) 我使用 using 语句来确保正确处理 ServerManager 对象。

2)我正在等待应用程序池完成启动,然后再停止它,这样我们就不会在尝试停止应用程序时遇到任何问题。同样,我正在等待应用程序池完成停止,然后再尝试启动它。

3)我强制该方法接受实际的服务器名称,而不是回退到本地服务器,因为我认为您可能应该知道您正在针对哪个服务器运行它。

4)我决定启动/停止应用程序而不是回收它,这样我可以确保我们不会意外启动因其他原因停止的应用程序池,并避免尝试回收已经停止的问题应用程序池。

public static void RecycleApplicationPool(string serverName, string appPoolName)
{
    if (!string.IsNullOrEmpty(serverName) && !string.IsNullOrEmpty(appPoolName))
    {
        try
        {
            using (ServerManager manager = ServerManager.OpenRemote(serverName))
            {
                ApplicationPool appPool = manager.ApplicationPools.FirstOrDefault(ap => ap.Name == appPoolName);

                //Don't bother trying to recycle if we don't have an app pool
                if (appPool != null)
                {
                    //Get the current state of the app pool
                    bool appPoolRunning = appPool.State == ObjectState.Started || appPool.State == ObjectState.Starting;
                    bool appPoolStopped = appPool.State == ObjectState.Stopped || appPool.State == ObjectState.Stopping;

                    //The app pool is running, so stop it first.
                    if (appPoolRunning)
                    {
                        //Wait for the app to finish before trying to stop
                        while (appPool.State == ObjectState.Starting) { System.Threading.Thread.Sleep(1000); }

                        //Stop the app if it isn't already stopped
                        if (appPool.State != ObjectState.Stopped)
                        {
                            appPool.Stop();
                        }
                        appPoolStopped = true;
                    }

                    //Only try restart the app pool if it was running in the first place, because there may be a reason it was not started.
                    if (appPoolStopped && appPoolRunning)
                    {
                        //Wait for the app to finish before trying to start
                        while (appPool.State == ObjectState.Stopping) { System.Threading.Thread.Sleep(1000); }

                        //Start the app
                        appPool.Start();
                    }
                }
                else
                {
                    throw new Exception(string.Format("An Application Pool does not exist with the name {0}.{1}", serverName, appPoolName));
                }
            }
        }
        catch (Exception ex)
        {
            throw new Exception(string.Format("Unable to restart the application pools for {0}.{1}", serverName, appPoolName), ex.InnerException);
        }
    }
}
于 2015-02-17T01:49:46.707 回答
7

以下方法经过测试可用于 IIS7 和 IIS8

第 1 步:添加对Microsoft.Web.Administration.dll的引用。该文件可以在路径 C:\Windows\System32\inetsrv\ 中找到,或者将其安装为 NuGet 包https://www.nuget.org/packages/Microsoft.Web.Administration/

第 2 步:添加以下代码

using Microsoft.Web.Administration;

使用空条件运算符

new ServerManager().ApplicationPools["Your_App_Pool_Name"]?.Recycle();

或者

使用 if 条件检查 null

var yourAppPool=new ServerManager().ApplicationPools["Your_App_Pool_Name"];
if(yourAppPool!=null)
    yourAppPool.Recycle();
于 2018-11-22T12:47:13.167 回答
5

回收在 IIS6 上工作的代码:

    /// <summary>
    /// Get a list of available Application Pools
    /// </summary>
    /// <returns></returns>
    public static List<string> HentAppPools() {

        List<string> list = new List<string>();
        DirectoryEntry W3SVC = new DirectoryEntry("IIS://LocalHost/w3svc", "", "");

        foreach (DirectoryEntry Site in W3SVC.Children) {
            if (Site.Name == "AppPools") {
                foreach (DirectoryEntry child in Site.Children) {
                    list.Add(child.Name);
                }
            }
        }
        return list;
    }

    /// <summary>
    /// Recycle an application pool
    /// </summary>
    /// <param name="IIsApplicationPool"></param>
    public static void RecycleAppPool(string IIsApplicationPool) {
        ManagementScope scope = new ManagementScope(@"\\localhost\root\MicrosoftIISv2");
        scope.Connect();
        ManagementObject appPool = new ManagementObject(scope, new ManagementPath("IIsApplicationPool.Name='W3SVC/AppPools/" + IIsApplicationPool + "'"), null);

        appPool.InvokeMethod("Recycle", null, null);
    }
于 2008-12-02T08:47:54.887 回答
3

有时我觉得简单就是最好的。虽然我建议人们以某种​​巧妙的方式调整实际路径,以便在其他环境中以更广泛的方式工作 - 我的解决方案看起来像:

ExecuteDosCommand(@"c:\Windows\System32\inetsrv\appcmd recycle apppool " + appPool);

在 C# 中,运行一个 DOS 命令就可以了。上述许多解决方案不适用于各种设置和/或需要打开 Windows 上的功能(取决于设置)。

于 2013-09-03T06:35:53.440 回答
3

这段代码对我有用。只需调用它来重新加载应用程序。

System.Web.HttpRuntime.UnloadAppDomain()
于 2015-12-08T11:04:02.637 回答
0

另外一个选项:

System.Web.Hosting.HostingEnvironment.InitiateShutdown();

似乎比UploadAppDomain哪个“终止”应用程序更好,而前者等待工作完成。

于 2019-07-17T14:12:29.663 回答