PowerShell的-WebClient DownloadFile通配符？ [英] PowerShell -WebClient DownloadFile Wildcards?

问题描述

我要多个文件从SharePoint libary复制到本地目录。
它可以使用通配符？
下面的代码是行不通的。但有使用Web客户端和通配符的方法吗？
（我必须使用Web客户端，这是不可能使用SharePoint Web服务:-(）

  $网址=HTTP：//mySharePoint/websites/Site/TestDocBib/*.jpg
 $ PATH =D：\temp\
 
 $的WebClient =新对象系统。 Net.WebClient 
 $ WebClient.UseDefaultCredentials = $真
 $ WebClient.DownloadFile（$网址，$ PATH）
  

解决方案

您可以分析，虽然该列表的HTML。

 ＃假网址 - 我已经添加allitems.aspx 
 $ URL =HTTP：//mySharePoint/websites/Site/TestDocBib/allitems.aspx
 $ PATH =D：\temp \
 $ dl_file = $ PATH +allitems.html
 
 $的WebClient =新对象System.Net.WebClient 
 $ WebClient.UseDefaultCredentials = $真
 $ WebClient.DownloadFile（$网址，$ dl_file）
  

一旦你下载了该文件可以分析，虽然该文件 - 一个快速谷歌打开了李霍姆斯做了大部分早已：

的 http://www.leeholmes.com/blog/2005 / 09/05 /单元测试功能于powershell-％E2％80％93-A-链接解析器/

您希望主位是正则表达式：

  $正则表达式=< \s * a\s * [^>] *？ href\s * = * \s [`] *（[^`'>] +）[^>] *>中
  

我非常快的黑客 - 这可能（也可能不会）工作......但要点有：）

  $测试= $ GC dl_file 
 
 $ T = [正则表达式] ::匹配（$考验，正则表达式$IGNORECASE）
 $ I = 0 
的foreach（在$ T $ TT）{
＃这是假设绝对路径 - 你可能需要添加主机名，如果路径是相对于
 $ URL = $ TT。组[1] .Value.Trim（）
 $的WebClient =新对象System.Net.WebClient 
 $ WebClient.UseDefaultCredentials = $真
 $ WebClient.DownloadFile（$网址，$（ $ PATH + $ I +.JPG））
 $ I = $ I + 1 
} 
  

I want to copy multiple files from a SharePoint libary to a local directory. It is possible to use Wildcards? The following code is not working. But is there a way to use the WebClient and Wildcards? (I must use the WebClient. It is not possible to use the SharePoint WebServices :-( )

$url = "http://mySharePoint/websites/Site/TestDocBib/*.jpg"
$path = "D:\temp\"

$WebClient = New-Object System.Net.WebClient
$WebClient.UseDefaultCredentials = $true
$WebClient.DownloadFile($url, $path)

解决方案

you can parse though the html of the list.

# dummy url - i've added allitems.aspx
$url = "http://mySharePoint/websites/Site/TestDocBib/allitems.aspx"
$path = "D:\temp\"
$dl_file = $path + "allitems.html"

$WebClient = New-Object System.Net.WebClient
$WebClient.UseDefaultCredentials = $true
$WebClient.DownloadFile($url, $dl_file)

once you've downloaded the file you can parse though the file - a quick google turned up that Lee Holmes had done most of it already:

http://www.leeholmes.com/blog/2005/09/05/unit-testing-in-powershell-%E2%80%93-a-link-parser/

the main bit you want is the regex:

$regex = "<\s*a\s*[^>]*?href\s*=\s*[`"']*([^`"'>]+)[^>]*?>" 

I very quick hack - that may (or may not) work... but the gist is there :)

$test = gc $dl_file

$t = [Regex]::Matches($test, $regex, "IgnoreCase")
$i = 0
foreach ($tt in $t) { 
    # this assumes absolute paths - you may need to add the hostname if the paths are relative
    $url = $tt.Groups[1].Value.Trim() 
    $WebClient = New-Object System.Net.WebClient
    $WebClient.UseDefaultCredentials = $true
    $WebClient.DownloadFile($url, $($path + $i + ".jpg"))
    $i = $i + 1
}

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