Question

我正在使用powershell

从IP地址列表中获取IP地址
将其插入SQL查询
输出结果

到目前为止，代码仅在我包含一个IP地址时才有效。如果我包含多个脚本，则该脚本将无限期挂起

这段代码似乎正确，应该修复什么？

$file = Get-Content C:\list.txt

$conn.Open()

foreach ($k in $file){
    write-host $k

    $sql = "SELECT dbo.sem_computer.COMPUTER_NAME,[IP_ADDR1_TEXT],(dbo.SEM_AGENT.FREE_DISK/1073741824)as 'Free Disk Space (GB)', 
    (dbo.SEM_COMPUTER.DISK_TOTAL/1073741824) as 'Total Disk Space (GB)',
    (dbo.SEM_AGENT.FREE_MEM/1073741824) as 'Free Memory (GB)', (dbo.SEM_COMPUTER.MEMORY/1073741824) as 'Total Memory (GB)', 
    dbo.SEM_COMPUTER.OPERATION_SYSTEM,NAME, SEM_AGENT.MAJOR_VERSION
    FROM dbo.sem_computer, [dbo].[V_SEM_COMPUTER], dbo.IDENTITY_MAP, dbo.SEM_CLIENT, dbo.SEM_AGENT
    WHERE [dbo].[V_SEM_COMPUTER].COMPUTER_ID = SEM_COMPUTER.COMPUTER_ID
    AND dbo.SEM_CLIENT.GROUP_ID = IDENTITY_MAP.ID
    AND dbo.SEM_CLIENT.COMPUTER_ID = dbo.SEM_COMPUTER.COMPUTER_ID
    AND dbo.SEM_COMPUTER.COMPUTER_ID = dbo.SEM_AGENT.COMPUTER_ID
    AND [IP_ADDR1_TEXT] = '$k'"

    $cmd = New-Object System.Data.SqlClient.SqlCommand($sql,$conn)

    do{
    try{
        $rdr = $cmd.ExecuteReader()

        # Read Computer Name, Computer ID, IP address, Domain, and Operating System from the Database into a multidimensional array

        while ($rdr.read()){
            $sql_output += ,@($rdr.GetValue(0), $rdr.GetValue(1), $rdr.GetValue(2), $rdr.GetValue(3), $rdr.GetValue(4), $rdr.GetValue(5), $rdr.GetValue(6), $rdr.GetValue(7), $rdr.GetValue(8))
        }
        $transactionComplete = $true
    }
    catch{
        $transactionComplete = $false
    }
    }until ($transactionComplete)
}

Write-host $sql_output

$conn.Close()

Answer 1

我可能只是测试一下这是否有效：

$file = Get-Content C:\list.txt

$conn.Open()

foreach ($k in $file){
    write-host $k

    $sql = "SELECT dbo.sem_computer.COMPUTER_NAME,[IP_ADDR1_TEXT],(dbo.SEM_AGENT.FREE_DISK/1073741824)as 'Free Disk Space (GB)', 
    (dbo.SEM_COMPUTER.DISK_TOTAL/1073741824) as 'Total Disk Space (GB)',
    (dbo.SEM_AGENT.FREE_MEM/1073741824) as 'Free Memory (GB)', (dbo.SEM_COMPUTER.MEMORY/1073741824) as 'Total Memory (GB)', 
    dbo.SEM_COMPUTER.OPERATION_SYSTEM,NAME, SEM_AGENT.MAJOR_VERSION
    FROM dbo.sem_computer, [dbo].[V_SEM_COMPUTER], dbo.IDENTITY_MAP, dbo.SEM_CLIENT, dbo.SEM_AGENT
    WHERE [dbo].[V_SEM_COMPUTER].COMPUTER_ID = SEM_COMPUTER.COMPUTER_ID
    AND dbo.SEM_CLIENT.GROUP_ID = IDENTITY_MAP.ID
    AND dbo.SEM_CLIENT.COMPUTER_ID = dbo.SEM_COMPUTER.COMPUTER_ID
    AND dbo.SEM_COMPUTER.COMPUTER_ID = dbo.SEM_AGENT.COMPUTER_ID
    AND [IP_ADDR1_TEXT] = '$k'"

    $command = $conn.CreateCommand()
    $command.CommandText = $sql
    $sql_output = $command.ExecuteReader()
}

Write-host $sql_output

$conn.Close()

然后添加错误处理（try / catch）。

Answer 2

显然这是答案（来自评论）：

您是否考虑过在for循环中构建Sql连接？此外，如果写入$ sql_output时出错，您将运行永远。为了排除故障，我会写主机$ sql来确保文字是正确的，然后花时间确保你工作与读者正确

查询SQL数据库中的IP地址列表

2 个答案: