Question

我遇到了当今无法解决的问题。如果您分享您的意见，我会被征询的。

有关流文件的问题。

例如，用户来自带有QueryString参数的url，该参数标识要流式传输的文件。

然后，成功从数据库中读取文件。之后，我使用下面的代码流式传输并写入响应的输出

try
{
    do
    {
         read = reader.GetBytes(6, offset, chunk, 0, chunk.Length);
         if (read > 0)
         {
            if (streamParam.Context.Response.IsClientConnected)
            {                                         
                streamParam.Context.Response.OutputStream.Write(chunk, 0, (int)read);

                streamParam.Context.Response.Flush();

                offset += read;
             }
             else read = -1;
         }
     }
     while (read > 0);
}
catch (Exception exc)
{
    streamParam.Context.Response.End();
}

最重要的是，我无法在调试环境中重现该错误。但是，当我将网站发布到服务器时，在事件查看器中我遇到了数千次错误。

在提供一些提示或类似信息的情况下，我共享了没有堆栈跟踪的事件日志，

System.Web.HttpUnhandledException Page: file_streamer.aspx?fId=12312 Message: Exception of type 'System.Web.HttpUnhandledException' was thrown. StackTrace:    at System.Web.UI.Page.HandleError(Exception e)
  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
  at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
  at System.Web.UI.Page.ProcessRequest()
  at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
  at System.Web.UI.Page.ProcessRequest(HttpContext context)
  at webproj.file_streamer_aspx.ProcessRequest(HttpContext context)
  at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
  at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) 
  Source: System.Web InnerException: 
  System.Web.HttpException (0x80004005): An error occurred while communicating with the remote host. The error code is 0x800703E3. ---> System.Runtime.InteropServices.COMException (0x800703E3): The I/O operation has been aborted because of either a thread exit or an application request. (Exception from HRESULT: 0x800703E3)
  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) An error occurred while communicating with the remote host. The error code is 0x800703E3.    
  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) DataDll The I/O operation has been aborted because of either a thread exit or an application request. (Exception from HRESULT: 0x800703E3)

P.S。：我研究了此问题，服务器更新了sp 2和com port reset。它没有用。我也读过有关IsClientConnected的信息，但是它目前在代码中。

任何帮助都会很棒，谢谢，

（0x800703E3）由于线程退出或应用程序请求，

0 个答案: