asp.net-mvc - MVC3中的错误-请求永不超时。适用于同一项目中的aspx页面

Question

我在我们的生产站点以及为测试这一点而设置的一个小型测试站点中都看到了这一点...

基本上，由mvc处理的请求似乎永远不会超时。我已经在web.config中设置了executeTimeout并关闭了 Debug模式。然后，我在普通的aspx页和mvc页上都添加了thread.sleeps无限循环(该循环在mvc页的 Controller 中)。 aspx页面可靠地超时(HttpException(0x80004005):请求超时。)，但是mvc页面只是永久旋转而不会超时。

是否有mvc的单独设置(我看过但没有找到它们)？默认情况下，mvc请求不会超时吗？

任何帮助，将不胜感激。如果可以帮助任何人，我会很乐意通过电子邮件发送我的小型测试站点。

编辑:我正在使用MVC3。

我的web.config的内容:

<?xml version="1.0"?>

<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->

<configuration>
  <connectionStrings>
    <add name="ApplicationServices"
         connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
         providerName="System.Data.SqlClient" />
  </connectionStrings>
  <appSettings>
    <add key="webpages:Enabled" value="true" />
  </appSettings>

  <system.web>
      <httpRuntime maxRequestLength="16384" executionTimeout="30" />
      <compilation debug="false" targetFramework="4.0">
          <assemblies>
          <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
          <add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
          <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
          <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
          <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
          </assemblies>
      </compilation>

    <authentication mode="Forms">
      <forms loginUrl="~/Account/Login.aspx" timeout="2880" />
    </authentication>

    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices"
             enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
             maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
             applicationName="/" />
      </providers>
    </membership>

    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
      </providers>
    </profile>

    <roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>

  </system.web>

  <system.webServer>
     <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
</configuration>

Answer 1

我找到了原因，方法:

此方法在WrappedAsyncResult类中，MvcHandler类通过BeginProcessRequest使用该方法:

public static IAsyncResult BeginSynchronous<TResult>(AsyncCallback callback, object state, Func<TResult> func, object tag)
{
    BeginInvokeDelegate beginDelegate = delegate (AsyncCallback asyncCallback, object asyncState) {
        SimpleAsyncResult result = new SimpleAsyncResult(asyncState);
        result.MarkCompleted(true, asyncCallback);
        return result;
    };
    EndInvokeDelegate<TResult> endDelegate = _ => func();
    WrappedAsyncResult<TResult> result = new WrappedAsyncResult<TResult>(beginDelegate, endDelegate, tag);
    result.Begin(callback, state, -1);
    return result;
}

其中“开始”为:

public void Begin(AsyncCallback callback, object state, int timeout)
{
    bool completedSynchronously;
    this._originalCallback = callback;
    lock (this._beginDelegateLockObj)
    {
        this._innerAsyncResult = this._beginDelegate(new AsyncCallback(this.HandleAsynchronousCompletion), state);
        completedSynchronously = this._innerAsyncResult.CompletedSynchronously;
        if (!completedSynchronously && (timeout > -1))
        {
            this.CreateTimer(timeout);
        }
    }
    if (completedSynchronously && (callback != null))
    {
        callback(this);
    }
}

编辑:提出了一种强制MVC Controller Action “超时”的方式，尽管该机制有些残酷:

public class TimeoutController : Controller
{
    private bool _isExecuting = false;
    private int _controllerTimeout = 5000;
    private Thread _executingThread;
    private readonly object _syncRoot = new object();

    protected override void ExecuteCore()
    {
        _executingThread = Thread.CurrentThread;
        ThreadPool.QueueUserWorkItem(o =>
            {
                Thread.Sleep(_controllerTimeout);
                if (_isExecuting)
                {
                    _executingThread.Abort();
                }
            });
        base.ExecuteCore();
    }

    protected override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        _isExecuting = true;
        base.OnActionExecuting(filterContext);
    }

    protected override void OnActionExecuted(ActionExecutedContext filterContext)
    {
        _isExecuting = false;                
        base.OnActionExecuted(filterContext);
    }

    public int ControllerTimeout
    {
        get
        {
            int retVal;
            lock(_syncRoot)
            {
                retVal = _controllerTimeout;
            }
            return retVal;
        }
        set
        {
            lock(_syncRoot)
            {
                _controllerTimeout = value;                    
            }
        }
    }
}