發佈到IIS時，httpModule不會觸發

Question

當我在我的機器上進行調試時，httpModule現在在將它發佈到IIS後正常啓動，它不會運行，我做錯了什麼？我錯過了什麼嗎？

這裏是什麼樣子在web.config中

<httpModules> 
    <add type="MyApp.Web.Mvc.Modules.Scheduler" name="Scheduler" /> 
</httpModules> 

然後，調度器看起來像這樣

public class Scheduler : IHttpModule 
{ 
private static readonly object Job; 
private static Timer timer; 

static Scheduler() 
{ 
    Job = new object(); 
} 

void IHttpModule.Init(HttpApplication application) 
{ 
    try 
    { 

     if (timer == null) 
     { 
      var timerCallback = new TimerCallback(ProcessJobs); 
      const int startTime = 10 * 1000; 
      const int timerInterval = 60 * 1000; // 1 minute 
      timer = new Timer(timerCallback, null, startTime, timerInterval); 
     } 
    } 
    catch (Exception ex) 
    { 
     //exception code here 
    } 
} 

public void Dispose() 
{ 
} 

protected void ProcessJobs(object state) 
{ 
    try 
    { 
     // This protects everything inside from other threads that might be invoking this 
     // which is good for long running processes on the background 
     lock (Job) 
     { 
      //My Stuff 
     } 
    } 
    catch (Exception ex) 
    { 
     //exception code here 
    } 
} 
} 

Answer 1

如果您在IIS 7.0及更高版本集成的管線模式託管確保您有在<system.webServer><modules>...<modules></>部分宣佈您的模塊：

<system.webServer> 
    .... 
    <modules> 
     <add name="Scheduler" type="MyApp.Web.Mvc.Modules.Scheduler" /> 
    </modules> 
</system.webServer> 

順便說一句，確保你已經閱讀了Phil Haack的文章The Dangers of Implementing Recurring Background Tasks in ASP.NET，然後再將此代碼投入生產。