通过HTTP上传BIG文件

问题描述

我试图用很少的方法来使用（5-15 Gb大小）到一个HTTP服务器使用PowerShell。 （此处链接的脚本和

I'm trying to upload really big VM Images (5-15 Gb size) to an HTTP server using PowerShell.

I tried to use for that few methods (here links to script with net.WebClient.UploadFile and script with Invoke-webRequest)

It works well for files less than 2GB, but not for files larger than this.

I'm trying to work with httpWebRequest directly but I unable to put FileStream into it.

So my question is: how to put filestream into webrequest?

Or more generally: how to upload huge file via http with PowerShell?

$Timeout=10000000;
$fileName = "0.iso";
$data = "C:\\$fileName";
$url = "http://nexus.lab.local:8081/nexus/content/sites/myproj/$fileName";
#$buffer = [System.IO.File]::Open("$data",[System.IO.Filemode]::Open, [System.IO.FileAccess]::Read) #Err Cannot convert argument "buffer", with value: "System.IO.FileStream", for "Write" to type "System.Byte[]":
#$buffer = gc -en byte $data # too much space in memory
$buffer = [System.IO.File]::ReadAllBytes($data) #Limit 2gb
[System.Net.HttpWebRequest] $webRequest = [System.Net.WebRequest]::Create($url)
$webRequest.Timeout = $timeout
$webRequest.Method = "POST"
$webRequest.ContentType = "application/data"
#$webRequest.ContentLength = $buffer.Length;
$webRequest.Credentials = New-Object System.Net.NetworkCredential("admin", "admin123");

$requestStream = $webRequest.GetRequestStream()
$requestStream.Write($buffer, 0, $buffer.Length)
$requestStream.Flush()
$requestStream.Close()

[System.Net.HttpWebResponse] $webResponse = $webRequest.GetResponse()
$streamReader = New-Object System.IO.StreamReader($webResponse.GetResponseStream())
$result = $streamReader.ReadToEnd()
return $result
$stream.Close()

解决方案

By default HttpWebRequest is buffering data in memory.Just set HttpWebRequest.AllowWriteStreamBuffering property to false and you would be able to upload files with almost any size.See more details at msdn

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