如何使用c＃winforms将参数传递到Powershell脚本？

Posted 2021-04-30

我想通过winforms执行powershell脚本并获得格式正确的输出。我设法使其正常工作，但现在我需要将参数传递给脚本。我无法做到这一点。

这是我的RunScript函数：

        private string RunScript(string scriptFile)
        {
            Runspace runSpace = RunspaceFactory.CreateRunspace();
            runSpace.Open();
            Pipeline pipeLine = runSpace.CreatePipeline();
            Command script = new Command(scriptFile);
            script.Parameters.Add("COM_USERNAME", usernameBox.Text);
            script.Parameters.Add("COM_PASSWORD", passwordBox.Text);
            script.Parameters.Add("installDir", installDirBox.Text);
            script.Parameters.Add("TEMPVAULT_PATH", tempVaultBox.Text);
            script.Parameters.Add("MAX_REQ_LIMIT", maxReqLimBox.Text);
            script.Parameters.Add("MAX_BUFF_LIMIT", maxBuffLimBox.Text);
            pipeLine.Commands.AddScript(script.ToString());
            pipeLine.Commands.Add("Out-String");
            Collection<PSObject> results = pipeLine.Invoke();
            runSpace.Close();

            StringBuilder strBuilder = new StringBuilder();
            foreach (PSObject item in results)
            {
                strBuilder.AppendLine(item.ToString());
            }

            return strBuilder.ToString();
        }

这是我正在尝试的脚本：

param (
  [bool]   $STARTSERVICE = $false ,
  [bool]   $INSTALL = $false ,
  [bool]   $INSTALL_DASHBOARD = $false,
  [bool]   $DASHBOARD_SETTINGS = $false,
  [bool]   $DASHBOARD_CREATENEWDB = $false,
  [bool]   $DALIM_SETTINGS = $false,
  [bool]   $INSTALLIIS = $true,
  [bool]   $FIRST_INSTALL = $true,
  [bool]   $RECOVERY = $false,
  [string] $COM_USERNAME,
  [string] $COM_PASSWORD,
  [string] $RECOVERY_ADM_NAME,
  [string] $RECOVERY_ADM_PWD,
  [string] $Windows2012DVDLetter = "F:",
  [string] $COM_UNCPATH,
  [string] $installDir = "C:Program FilesLascom",
  [string] $TEMPVAULT_PATH = "C:TempVault",
  $SOAP_MaxPostSize = 4294967295,
  $MAX_REQ_LIMIT = 500000000,
  $MAX_BUFF_LIMIT = 500000000

)

Write-Output "`nUsername = " $COM_USERNAME
Write-Output "`nPassword = " $COM_PASSWORD
Write-Output "`nCOM_UNCPATH = " $COM_UNCPATH
Write-Output "`nMaximum Request Limit = " $MAX_REQ_LIMIT
Write-Output "`nMaximum Buff Limit = " $MAX_BUFF_LIMIT
Write-Output "`nIsFirstInstall = " $FIRST_INSTALL
Write-Output "`nInstallation Directory = " $installDir
Write-Output "`nTempVault Path = " $TEMPVAULT_PATH
Write-Output "`nRestriction level = " $RESTRICT_LVL

我的输出仅显示脚本值中的预注册值，但我尝试显示的内容（文本框输入）不显示。我错过了什么吗？

答案

您可以大大简化您的调用：

private string RunScript(string scriptFile)
{
  using (var ps = PowerShell.Create()) {
    ps.AddCommand(scriptFile)
        .AddParameter("COM_USERNAME", usernameBox.Text)
        .AddParameter("COM_PASSWORD", passwordBox.Text)
        .AddParameter("installDir", installDirBox.Text)
        .AddParameter("TEMPVAULT_PATH", tempVaultBox.Text)
        .AddParameter("MAX_REQ_LIMIT", maxReqLimBox.Text)
        .AddParameter("MAX_BUFF_LIMIT", maxBuffLimBox.Text)
      .AddCommand('Out-String');
    return ps.Invoke()[0].ToString();
  }
} 

使用PowerShell.Create()创建一个PowerShell实例，该实例基于隐式创建的运行空间提供更高级别的API：

• 方法可以链接。
• 反复调用.AddCommand()会自动添加新的管道段。

---

关于您尝试了什么：

pipeLine.Commands.AddScript(script.ToString());

.AddScript()方法用于添加任意的PowerShell代码，而不用于添加具有关联参数的Command实例。

通过用Command对存储在script中的.ToString()实例进行字符串化，您实际上只是将脚本路径作为要执行的命令-用.AddParameter()添加的所有参数都是丢失。

相反，您应该如下添加您的Command实例：

pipeLine.Commands.Add(script)