Question

如何从C＃（.net 2）重启（回收）IIS应用程序池？

感谢您发布示例代码吗？

Answer 1

我们走了：

HttpRuntime.UnloadAppDomain();

Answer 2

约翰，

如果您使用的是 IIS7 ，则会在停止时执行此操作。我假设你可以调整重启而不必显示。

// 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 IIS6 ，我不太确定，但您可以尝试获取web.config并编辑修改日期等。一旦对web.config进行了编辑，那么应用程序将重新启动。

Answer 3

也许这篇文章会有所帮助：

Answer 4

以下代码适用于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”。

Answer 5

我使用我的代码稍微不同的路线来回收应用程序池。需要注意的一些事情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在停止之前完成启动，这样我们就不会遇到任何试图停止应用程序的问题。同样，我正在等待应用程序池在尝试启动之前完成停止。

3）我强制该方法接受一个实际的服务器名称而不是回退到本地服务器，因为我认为你应该知道你正在运行这个服务器的服务器。

4）我决定启动/停止应用程序，而不是回收它，这样我就可以确保我们没有意外启动因其他原因而停止的应用程序池，并避免尝试的问题回收已经停止的应用程序池。

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);
        }
    }
}

Answer 6

回收在IIS6上运行的代码：

    /// <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);
    }

Answer 7

有时我觉得这很简单是最好的。虽然我建议人们以一种聪明的方式调整实际路径，以更广泛的方式在其他环境中工作 - 我的解决方案看起来像：

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

从C＃开始运行DOS命令。上述许多解决方案不适用于各种设置和/或要求打开Windows上的功能（取决于设置）。

Answer 8

这段代码对我有用。只需将其调用即可重新加载应用程序。

System.Web.HttpRuntime.UnloadAppDomain()

Answer 9

以下方法经过测试，可同时用于IIS7和IIS8

第1步：添加对 Microsoft.Web.Administration.dll 的引用。可以在路径C：\ Windows \ System32 \ inetsrv \中找到该文件，或将其安装为NuGet软件包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();

OR

使用条件检查是否为空

var yourAppPool=new ServerManager().ApplicationPools["Your_App_Pool_Name"];
if(yourAppPool!=null)
    yourAppPool.Recycle();

Answer 10

另一个选择：

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

似乎比UploadAppDomain更好，后者可以“终止”应用程序，而前者则在等待内容完成工作。

重新启动（回收）应用程序池

10 个答案: