Powershell XML Export-csv不附加散列

Question

我是相當新的Powershell，我有我相當奇怪的XML，我的主要目標是將XML轉換爲CSV，它將進一步用於同步到數據庫。 我已經使用Powershell代碼將xml提取到哈希中。 現在我有問題轉換成CSV。 Export-csv只寫入散列中的最後一個條目。不知道爲什麼這個，我檢查了幾個其他論壇，他們說Export-csv中的-append功能只與powershell 3.0，我使用1.0 ..

你能幫我解決這個問題嗎？

XML：

<catalog> 
<segment> 
<segmentname>Batch</segmentname> 
<hosts> 
<host> 
<hostname>cglist17</hostname> 
</host> 
<host> 
<hostname>cglist18</hostname> 
</host> 
<host> 
<hostname>cglist19</hostname> 
</host> 
<host> 
<hostname>cglist20</hostname> 
</host> 
</hosts> 
</segment> 
<segment> 
<segmentname>Custom S2</segmentname> 
<hosts> 
<host> 
<hostname>cglist21</hostname> 
</host> 
<host> 
<hostname>cglist22</hostname> 
</host> 
</hosts> 
</segment> 
<segment> 
<segmentname>eCommerce</segmentname> 
<hosts> 
<host> 
<hostname>cglist09</hostname> 
</host> 
<host> 
<hostname>cglist10</hostname> 
</host> 
</hosts> 
</segment> 
</catalog> 

PowerShell代碼：

[xml]$xd=gc "C:\Users\sxa8869\Desktop\Webserv\segmentcat.xml" 
$nodelist = $xd.selectnodes("/catalog/segment") 

$MasterArray = @() 
$MasterArray = "" | Select segmentname,hosts 

$file="C:\Users\sxa8869\Desktop\Webserv\sha.csv" 

foreach ($node in $nodelist) { 

    $hostsNode = $node.selectSingleNode("hosts") 
    $segmentname = $node.selectSingleNode("segmentname") 
    $MasterArray.segmentname=$segmentname.get_InnerXml() 
    foreach ($hostitem in $hostsNode) { 
    $hostnamenodes = $hostitem.selectnodes("host") 
    foreach ($hostname in $hostnamenodes) { 
     $MasterArray.hosts=$hostname.selectSingleNode("hostname").get_InnerXml() 

#- Displays the hash in table format, want this format in csv 
     $MasterArray   

# - displaying only the last element 
     $MasterArray | export-csv "file.csv" -notype  

# - this works, but i want to use export-csv to get it in this format 
'"'+$MasterArray.segmentname+'"'+","+'"'+$MasterArray.hosts+'"'  

    }  
    } 
} 


Required output :- 
----------------- 
"segmentname","hosts" 
"Batch","cglist17" 
"Batch","cglist18" 
"Batch","cglist19" 
"Batch","cglist20" 
"Custom S2","cglist21" 
"Custom S2","cglist22" 
"eCommerce","cglist09" 
eCommerce,"cglist10" 

Answer 1

您在這裏有多個問題。首先，您創建一個數組MasterArray，但您將其設置爲等於您使用Select創建的自定義對象。現在MasterArray不再是一個數組，而是一個pscustomobject。第二，將值設置爲單個對象屬性，每次都會覆蓋最後一個條目。一個數組需要包含多個對象。我重寫了它。我沒有使用管道等提高，但簡單地固定你的錯誤，;-)腳本：

[xml]$xd = gc "C:\Users\sxa8869\Desktop\Webserv\segmentcat.xml" 
$nodelist = $xd.selectnodes("/catalog/segment") 

$MasterArray = @() 

$file="C:\Users\sxa8869\Desktop\Webserv\sha.csv" 

foreach ($node in $nodelist) { 

    $hostsNode = $node.SelectSingleNode("hosts") 
    $segmentname = $node.SelectSingleNode("segmentname") 
    #Store static value for all objects in $node 
    $segname = $segmentname.InnerText 

    foreach ($hostitem in $hostsNode) { 
     $hostnamenodes = $hostitem.SelectNodes("host") 
     foreach ($hostname in $hostnamenodes) { 
      #Add hostrecord to array 
      $MasterArray += New-Object psobject -Property @{ 
      "Segment Name" = $segname 
      "Host Name" = $hostname.InnerText 
      } 
     } 
    } 
} 

#Output to console 
$MasterArray   

#Save to file (path in $file variable = "...\sha.csv"). 
#Using Select-Object to specify order of columns 
$MasterArray | Select-Object "Segment Name", "Host Name" | Export-Csv $file -NoTypeInformation 

產出「sha.csv」：

"Segment Name","Host Name" 
"Batch","cglist17" 
"Batch","cglist18" 
"Batch","cglist19" 
"Batch","cglist20" 
"Custom S2","cglist21" 
"Custom S2","cglist22" 
"eCommerce","cglist09" 
"eCommerce","cglist10" 

Answer 2

我覺得你很過分使事情複雜化。試試這個：

$myXML = [xml](Get-Content "C:\Users\sxa8869\Desktop\Webserv\segmentcat.xml") 
$file="C:\Users\sxa8869\Desktop\Webserv\sha.csv" 

$myArray = @() 
foreach ($s in $myXML.catalog.segment) 
{ 
    foreach ($h in $s.hosts.host) 
    { 
     $myArray += New-Object -TypeName PSObject -Property @{"Segment Name" = $s.segmentname; "Host Name" = $h.hostname} 
    } 
} 

$myArray | Export-Csv $file -NoTypeInformation