XMLHTTP的响应体是否在VB6中异步工作?

时间:2013-12-20 12:32:19

标签: vb6 stream xmlhttprequest

我们有一个SSRS集成的sharepoint服务器。我正在尝试从中导出PDF格式的报告。

(我必须这样做,因为我的网址太长了。我宁愿使用Shell命令这样做,虽然这看起来更好。但

这是我的代码:

Dim request as New XMLHTTP
Dim oStream as New Stream
Dim aBunchOfMiliseconds as Long

Dim fileLocation as String
Dim reportUrl as String

aBunchOfMiliseconds = 500

reportUrl = "http://www.mySharepointDomain.com/_vti_bin/ReportServer?http://www.mySharepointDomain.com/sites/AFolderHere/OOAnotherFolder/BlaBlaReportFolder/FolderFolder/AhTheLastOne/AtLeastMyReportFile.rdl&rs:Command=Render&rc:Toolbar=true&rs:Format=PDF&Parameter1=ABC  &Parameter2=1&Parameter3=1&TheLastParameter=IllBeDamned&rs%3aParameterLanguage=ln-LN"


request.Open "GET", reportUrl
request.setRequestHeader "WWW-Authenticate", "NTLM" 'For impersonation
request.Send 'Go get it Bruce

If request.Status = 200 Then 'Are you successful?

  oStream.Type = adTypeBinary
  oStream.Open

  oStream.Write request.responseBody 'Here's the problematic part
  Sleep(aBunchOfMiliseconds) 'If I don't do this, file will be corrupted

  oStream.SaveToFile fileLocation, adSaveCreateOverWrite

  oStream.Close


End If


Set oStream = Nothing
Set request = Nothing

如果我注释掉“睡眠”行,我将会有一个无法打开的损坏文件。这段代码工作正常,但我发现在那里使用“Sleep”是荒谬的。

我有什么方法可以理解数据复制操作已经完成了吗?

1 个答案:

答案 0 :(得分:1)

哦,我明白了。

我错过了说"这不是异步电话"。

request.Open "GET", reportUrl, False