#设置线程数量
$throttleLimit = 10
$SessionState = [system.management.automation.runspaces.initialsessionstate]::CreateDefault()
$Pool = [runspacefactory]::CreateRunspacePool(1, $throttleLimit, $SessionState, $Host)
$Pool.Open()

#url configure
$urlFile="D:\url.csv"

$ScriptBlock = {
	param($urlinfo)
    function Send-Mail{
        $Subject=$args[0]
        $Body=$args[2]
        $to=$args[1]
        if($Subject -eq $null -or $Body -eq $null -or $to -eq $null){
            Write-Warning 参数丢失！
            return $false
        }
        $password = ConvertTo-SecureString ‘password‘ -AsPlainText -Force
        $Credential = New-Object System.Management.Automation.PSCredential(‘account‘,$password)
        $SmptServer="smtp.xxxx.com"
        $From="user@xxxx.com"
        #$To="to@xxxx.com"
        $port="25"
        $encode=[system.text.encoding]::Default

        Send-MailMessage -SmtpServer $SmptServer -Port $port -Credential $Credential -From $From -Encoding $encode -to $To -Body $Body -Subject $Subject -BodyAsHtml -Priority High
    }
    function Invoke-url($urlinfo){
        $project=$urlinfo.project
        $url=$urlinfo.url
        $monitor=$urlinfo.monitor
        $notice=$urlinfo.to
        if($notice -match ","){
            $notice=$notice.split(",")
        }
        $checknums=$urlinfo.checknums
        $nterval=$urlinfo.nterval
        $script:j=0
        $xmlhttp=New-Object -ComObject Microsoft.XMLHTTP
        if($url -ne $null -and $monitor -ne ‘n‘){
            $xmlhttp.open("get",$url,$false)
            try{$xmlhttp.send()}catch{}
            if($xmlhttp.status -ne 200 -or $xmlhttp.readyState -ne 4){
                $j++
                if($j -le $checknums){
                    sleep $nterval
                    invoke-url $urlinfo
                }else{
                    $status=$xmlhttp.status
                    if($status -eq $null){
                        return $false
                    }
                    Send-Mail "Request $url failed,the status is $status" $notice "
                    <style type=‘text/css‘>
                    table.gridtable {
	                    font-family: verdana,arial,sans-serif;
	                    font-size:11px;
	                    color:#333333;
	                    border-width: 1px;
	                    border-color: #666666;
	                    border-collapse: collapse;
                    }
                    table.gridtable th {
	                    border-width: 1px;
	                    padding: 8px;
	                    border-style: solid;
	                    border-color: #666666;
	                    background-color: #dedede;
                    }
                    table.gridtable td {
	                    border-width: 1px;
	                    padding: 8px;
	                    border-style: solid;
	                    border-color: #666666;
	                    background-color: #ffffff;
                    }
                    </style>
                    <table class=‘gridtable‘><tr><th>System Name</th>
                             <th>Page</th>
                             <th>Http Code</th>
                             <th>Check Times</th>
                             <th>Interval(s)</th></tr>
                         <tr><td>$Project</td>
                             <td>$Url</td>
                             <td><font color=red>$Status</font></td>
                             <td>$checknums</td>
                             <td>$Nterval</td></tr>
                    </table>
                    "
                }
            }
        }
    }
    Invoke-url $urlinfo
}

$urllist=Import-Csv $urlFile -Encoding OEM

$threads = @()
$handles = $urllist|
    foreach {
	    $powershell = [powershell]::Create().AddScript($ScriptBlock).AddArgument($_)
	    $powershell.RunspacePool = $Pool
	    $powershell.BeginInvoke()
        $threads += $powershell
    }

do {
    $i = 0
    $done = $true
    foreach ($handle in $handles) {
        if ($handle -ne $null) {
  	        if ($handle.IsCompleted) {
                $threads[$i].EndInvoke($handle)
                $threads[$i].Dispose()
                $handles[$i] = $null
            } else {
                $done = $false
            }
        }
        $i++
    }
if (-not $done) { Start-Sleep -Milliseconds 500 }
} until ($done)

本文出自 “bxing” 博客，请务必保留此出处http://bxing.blog.51cto.com/1677994/1877417

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