Powershell在执行webrequest时卡住
Powershell在执行webrequest时卡住
提问于 2018-02-08 18:57:51
为了实现更新机制，我目前必须获取存储在get服务器上的一些文件的大小。获取文件大小适用于我的脚本，但是每当我多次调用该函数时，它就会被WebRequest.GetResponse()卡住。当它被卡住时，我甚至不能使用Ctrl-C来停止脚本。有没有人知道为什么会这样，或者有没有更好的方法？
在这个例子中，我得到了一个测试文本文件
Powershell脚本：
function GetWebFileSize($fileurl) {
try {
Write-host "Getting size of file $fileurl"
$clnt = [System.Net.WebRequest]::Create($fileurl)
$resp = $clnt.GetResponse()
$size = $resp.ContentLength;
Write-host "Size of file is $size"
return $size
}
catch {
Write-host "Failed getting file size of $fileurl"
return 0
}
}
[int]$counter = 0;
while (1 -eq 1) {
$counter++;
GetWebFileSize "https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md"
Write "Passed $counter"
}对输出执行Output of powershell (picture)操作：
C:\> .\WebFileSizeTest.ps1
Getting size of file https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
Size of file is 1003
1003
Passed 1
Getting size of file https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
Size of file is 1003
1003
Passed 2
Getting size of file https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
Failed getting file size of https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
0
Passed 3
Getting size of file https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
Failed getting file size of https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
0
Passed 4
Getting size of file https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
Failed getting file size of https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md
0
Passed 5
Getting size of file https://raw.githubusercontent.com/mxstbr/markdown-test-file/master/README.md回答 1
Stack Overflow用户
回答已采纳
发布于 2018-02-09 00:32:06
感谢@derloopkat的解决方案。我忘了销毁WebRequest对象。所以现在为我工作的代码是：
Write-host "Getting size of file $fileurl"
$clnt = [System.Net.WebRequest]::Create($fileurl)
$resp = $clnt.GetResponse()
$size = $resp.ContentLength;
$resp.Dispose();
Write-host "Size of file is $size"
return $size页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48683843
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