MVC3中的错误 - 请求永远不会超时.适用于同一项目中的aspx页面

Question

我在我们的生产网站上看到这个以及我设置的一个小测试网站来测试这个...

基本上,似乎mvc处理的请求永远不会超时.我在web.config中设置了executionTimeout并关闭了调试模式.然后我为常规的aspx页面和mvc页面添加了一个无限循环的thread.sleeps(循环在mvc页面的控制器中).aspx页面可靠地超时(HttpException(0x80004005):Request time out out.),但是mvc页面只是永远旋转而没有超时.

是否有单独的mvc设置(我看过但没有找到它们)？默认情况下mvc请求是否超时？

任何有关这方面的帮助将不胜感激.我很乐意通过电子邮件发送我的小型测试网站,如果它可以帮助任何人.

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,这是因为:

此方法位于WrappedAsyncResult类中,MvcHandler类通过BeginProcessRequest使用该类:

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"是:

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:已经提出了一种强制MVC控制器操作的"火爆"方式"超时",虽然机制有点野蛮:

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;                    
            }
        }
    }
}