在任务中获取HttpContext

Question

我在使用任务调用的方法中丢失了HttpContext。谷歌搜索似乎表明这个代码应该工作。任何想法我可能在这里做错了吗？

void ThisMethodIsCalledFromASPNet() 
    { 
     var context = System.Web.HttpContext.Current; // Here I am getting valid context 

     Task.Factory.StartNew(() => DoSomething(), CancellationToken.None, TaskCreationOptions.None, 
TaskScheduler.FromCurrentSynchronizationContext()); 
    } 

    void DoSomething() 
    { 
     var context = System.Web.HttpContext.Current; // Here I am getting null 
    } 

Answer 1

您需要在HttpContext经过：

void ThisMethodIsCalledFromASPNet() 
{ 
    Task.Factory.StartNew( 
     ctx => DoSomething((HttpContext)ctx), 
     System.Web.HttpContext.Current, 
     CancellationToken.None, 
     TaskCreationOptions.None, 
     TaskScheduler.FromCurrentSynchronizationContext()); 
} 

void DoSomething(HttpContext ctx) 
{ 
    // ctx is your HttpContext 
}