Question

我有像这样的PowerShell脚本

$timer = [System.Diagnostics.Stopwatch]::StartNew()      
$cookieContainer = New-Object System.Net.CookieContainer 

try
{   
    [system.Net.HttpWebRequest] $authRequest = [system.Net.HttpWebRequest]::Create($authUrl)     
    $authRequest.CookieContainer = $cookieContainer
    $authRequest.Method = "POST";
    $authRequest.ContentType = "application/x-www-form-urlencoded";

    $byteArray = [System.Text.Encoding]::UTF8.GetBytes($authPostData)   

    $authRequest.ContentLength = $byteArray.Length
    $dataStream = $authRequest.GetRequestStream()

    $dataStream.Write($byteArray, 0, $byteArray.Length)            
    $dataStream.Close()           

    $authResponse = $authRequest.GetResponse();

但在行$dataStream = $authRequest.GetRequestStream()中会引发异常：

System.Net.WebException：底层连接已关闭：接收时发生意外错误。 ---＆GT; System.IO.IOException：读取操作失败，请参阅内部异常。 ---＆GT; System.Management.Automation.PSInvalidOperationException：此线程中没有可用于运行脚本的Runspace。您可以在System.Management.Automation.Runspaces.Runspace类型的DefaultRunspace属性中提供一个。您尝试调用的脚本块是：$ true 在System.Net.Security.SslState.CheckOldKeyDecryptedData（Byte []缓冲区，Int32偏移量，Int32计数）在System.Net.Security.SslState.CheckEnqueueRead（Byte []缓冲区，Int32偏移量，Int32计数，AsyncProtocolRequest请求）在System.Net.Security._SslStream.StartReading（Byte []缓冲区，Int32偏移量，Int32计数，AsyncProtocolRequest asyncRequest）在System.Net.Security._SslStream.ProcessRead（Byte []缓冲区，Int32偏移量，Int32计数，AsyncProtocolRequest asyncRequest） ---内部异常堆栈跟踪结束--- 在System.Net.Security._SslStream.ProcessRead（Byte []缓冲区，Int32偏移量，Int32计数，AsyncProtocolRequest asyncRequest）在System.Net.TlsStream.Read（Byte []缓冲区，Int32偏移量，Int32大小）在System.Net.PooledStream.Read（Byte []缓冲区，Int32偏移量，Int32大小）在System.Net.Connection.SyncRead（HttpWebRequest请求，布尔userRetrievedStream，布尔probeRead） ---内部异常堆栈跟踪结束--- 在System.Net.HttpWebRequest.GetRequestStream（TransportContext＆amp; context）在System.Net.HttpWebRequest.GetRequestStream（） at GetRequestStream（Object，Object []） at System.Management.Automation.DotNetAdapter.AuxiliaryMethodInvoke（Object target，Object [] arguments，MethodInformation methodInformation，Object [] originalArguments）

我试图解决它或谷歌，但它没有帮助。我只是不明白为什么它因多线程异常而失败，因为我没有创建任何额外的线程，而且我正确地调用HttpWebRequest属性，所以它不应该也是内在的例外。

这也很奇怪，因为我有一个＆＃34; lib-script＆＃34;文件，我有多个脚本调用它，它看起来像

function GetRequest([string] $url, [System.Net.CookieContainer] $cookieContainer, [string] $postParams, [string] $userAgent)
{
        [system.Net.HttpWebRequest] $request = [system.Net.HttpWebRequest]::Create($url)
        $request.CookieContainer = $cookieContainer
        $request.UserAgent = $userAgent

        if (![string]::IsNullOrEmpty($postParams))
        {
            $request.Method = "POST"
            $request.ContentType = "application/x-www-form-urlencoded"
            $request.ContentLength = $postParams.Length
            [System.IO.TextWriter] $requestWriter = New-Object System.IO.StreamWriter($request.GetrequestStream())
            $requestWriter.Write($postParams)
            $requestWriter.Close()
            $requestWriter.Dispose();
        }

        return [system.Net.HttpWebRequest] $request
}

function GetContentFromUrl([System.String] $url, [System.Net.CookieContainer] $cookieContainer, [System.String] $postParams, [string] $userAgent)
{
        try
        {
            $request = GetRequest $url $cookieContainer $postParams $userAgent
            $Response = $request.GetResponse()

            [System.IO.TextReader] $ContentStream = New-Object System.IO.StreamReader($Response.GetResponseStream())
            $Content = [System.Web.HttpUtility]::HtmlDecode($ContentStream.ReadToEnd())
            $ContentStream.Close()
            $Response.Close()

            if($Response.StatusCode -ne 200)
            {
                throw;
            }

            return $Content
        }
        catch [System.Net.WebException]
        {
            try
            {
                #       Write-Host $Error[0] -foregroundcolor "magenta"
                $exception = $_.Exception 
                $status = GetStatusDescription( $exception.Status)

                $Error = GetExceptionDetails( $exception)
                $errorInfo = GetErrorInfo($exception)
                $errorDescription = GetErrorDescription($exception)

                $responseText = GetFailedResponseText -exception ($exception)

                if($exception.Response -ne $null)
                {
                    $exception.Response.Close()
                }



    SetResult -result $false -info $errorInfo -properties (GetAdditionalProperties -pingUrl $url -responseUri $exception.Response.ResponseUri -httpResponseStatusCode ($exception.Response.StatusCode) -errorCode ($ErrorCode.WebError) -errorDescription $errorDescription -responseText ($responseText))            
            Exit
        }
        catch [System.Exception]
        {
            [System.String] $resultText = "При получении ответа произошла ошибка :{0} {1} {2} " -f ($status, $exception, $exception.GetType())
            SetResult -result $false -info $errorInfo -properties (GetAdditionalProperties -pingUrl $url -resultCount 0 -errorDescription $errorDescription -httpResponseStatusCode 0) 
            Exit
        }
    }

}

我从来没有遇到任何问题。其他脚本只是调用GetContent函数并从url接收内容。但是当其他脚本（＆gt; 30）工作正常时，它会失败并出现相同的异常。

连接时BeginGetRequestStream似乎失败了。或类似的东西。

所以我使用了这段代码

Import-Module -name "C:\CommonFunctions.ps1" -Global  

$authUrl= 'http://www.someurl.com/somepage'
$authPostData='j_username=useruseruser&j_password=passpasspass&login=%D0%92%D0%BE%D0%B9%D1%82%D0%B8'
$cookieContainer = New-Object System.Net.CookieContainer

$content = GetContentFromUrl  $authUrl $cookieContainer #$authPostData

$content

现在它失败了：

[DBG]：PS C：\ Users \ Administrator \ Documents＆gt; $ exception.ToString（）   System.Net.WebException：底层连接已关闭：可以   不建立SSL / TLS安全通道的信任关系。 ---＆GT;   System.Security.Authentication.AuthenticationException：远程   根据验证程序，证书无效。在   System.Net.Security.SslState.StartSendAuthResetSignal（ProtocolToken   message，AsyncProtocolRequest asyncRequest，Exce ption exception）
  在System.Net.Security.SslState.StartSendBlob（Byte []传入，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.ProcessReceivedBlob（Byte []缓冲区，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartReceiveBlob（Byte []缓冲区，   AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartSendBlob（Byte [] incoming，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.ProcessReceivedBlob（Byte []缓冲区，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartReceiveBlob（Byte []缓冲区，   AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartSendBlob（Byte [] incoming，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.ProcessReceivedBlob（Byte []缓冲区，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartReceiveBlob（Byte []缓冲区，   AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartSendBlob（Byte [] incoming，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.ProcessReceivedBlob（Byte []缓冲区，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartReceiveBlob（Byte []缓冲区，   AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartSendBlob（Byte [] incoming，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.ProcessReceivedBlob（Byte []缓冲区，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartReceiveBlob（Byte []缓冲区，   AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.StartSendBlob（Byte [] incoming，Int32   count，AsyncProtocolRequest asyncRequest）at   System.Net.Security.SslState.ForceAuthentication（Boolean receiveFirst，   Byte [] buffer，AsyncProtocolRequest asyncRequ est）at   System.Net.Security.SslState.ProcessAuthentication（LazyAsyncResult   lazyResult）at   System.Threading.ExecutionContext.RunInternal（执行上下文   executionContext，ContextCallback回调，Object st ate，Boolean   preserveSyncCtx）at   System.Threading.ExecutionContext.Run（执行上下文   executionContext，ContextCallback回调，对象状态，Boo lean   preserveSyncCtx）at   System.Threading.ExecutionContext.Run（执行上下文   executionContext，ContextCallback回调，对象状态）at   System.Net.TlsStream.ProcessAuthentication（LazyAsyncResult result）
  在System.Net.TlsStream.Write（Byte []缓冲区，Int32偏移量，Int32大小）   在System.Net.PooledStream.Write（Byte []缓冲区，Int32偏移量，Int32   System.Net.ConnectStream.WriteHeaders（Boolean async）的大小）   ---内部异常堆栈跟踪的结束---在System.Net.HttpWebRequest.GetRequestStream（TransportContext＆amp; context）   在System.Net.HttpWebRequest.GetRequestStream（）处   GetRequestStream（Object，Object []）at   System.Management.Automation.DotNetAdapter.AuxiliaryMethodInvoke（对象   target，Object [] arguments，MethodInformatio n methodInformation，   Object [] originalArguments）

它好多了。我将证书添加到我的查询中。谢谢大家的帮助。

PowerShell + HttpWebRequest抛出异常

0 个答案: