该命令与Windows Server 2012(PowerShell 4.0)配合使用,但它不能与Windows 8(PowerShell 4.0)一起使用。
我想从IIS服务器下载文件。
(New-Object System.Net.WebClient).DownloadFile('http://server12/vdir/v.exe','C:\pqr.exe')
我试过这个。它在Windows Server 2012上对我很好,但在Windows 8上它给了我一个方法调用错误:
使用“2”参数调用“DownloadFile”的异常:“WebClient请求期间发生异常。
答案 0 :(得分:1)
我正在使用Windows 7(32位),我得到了和你一样的错误,因此,我编写了一个VBScript脚本,生成PowerShell脚本,以便在临时文件夹中下载此文件并执行它,它对我来说很好。
<强> DownloadPSVBS.vbs 强>
Option Explicit
Dim URL,Ws,ByPassPSFile,PSFile,MyCmd,Result
URL = "http://hackoo.alwaysdata.net/Matrix.mp3"
Set Ws = CreateObject("wscript.Shell")
PSFile = Left(Wscript.ScriptFullName, InstrRev(Wscript.ScriptFullName, ".")) & "ps1"
ByPassPSFile = "PowerShell.exe -ExecutionPolicy bypass -noprofile -file "
MyCmd = "$source = " & DblQuote(URL) & VbCrlF
MyCmd = MyCmd & "$Filename = [System.IO.Path]::GetFileName($source)" & VbCrlF
MyCmd = MyCmd & "$dest = " & DblQuote("$env:temp\$Filename") & VbCrlF
MyCmd = MyCmd & "$wc = New-Object System.Net.WebClient" & VbCrlF
MyCmd = MyCmd & "$wc.DownloadFile($source,$dest)" & VbCrlF
MyCmd = MyCmd & "Start-Process $dest"
Call WriteMyPSFile(MyCmd)
Result = Ws.run(ByPassPSFile & PSFile,0,True)
'**********************************************************************************************
Sub WriteMyPSFile(strText)
Dim fs,ts,PSFile
Const ForWriting = 2
PSFile = Left(Wscript.ScriptFullName, InstrRev(Wscript.ScriptFullName, ".")) & "ps1"
Set fs = CreateObject("Scripting.FileSystemObject")
Set ts = fs.OpenTextFile(PSFile,ForWriting,True)
ts.WriteLine strText
ts.Close
End Sub
'**********************************************************************************************
Function DblQuote(Str)
DblQuote = Chr(34) & Str & Chr(34)
End Function
'**********************************************************************************************
答案 1 :(得分:0)
要使用PowerShell下载文件,您可以使用Invoke-WebRequest:
mkdir c:\download
Invoke-WebRequest http://server12/vdir/v.exe -OutFile c:\download\pqr.exe
或者像这样使用它:
mkdir C:\download
$a = New-Object System.Net.WebClient
$a.DownloadFile("http://server12/vdir/v.exe","c:\download\pqr.exe")