PowerShell网络驱动器映射类提示成功但未实际映射问题求助

问题说明 #

我编写了一个PowerShell类，用于自动映射网络驱动器并将凭据存储在XML文件中，避免每日重复输入密码。尝试使用New-PSDrive和net use两种方式实现映射时，脚本均提示操作成功，但实际并未完成驱动器映射。该类是包含XAML GUI和拖放事件处理的大型脚本的核心模块，驱动器映射失败会导致后续功能完全无法运行。

手动执行命令Net use z: \\server.blah.blah.org\c$ /user mydomain\myusername /persist:y mypassword可正常完成映射，但在PowerShell 5.1和pwsh 7.5版本中运行脚本时均出现上述问题。

相关代码 #

class NetworkDrive {
  [string]$DriveLetter
  [string]$SharePath
  [string]$Username
  [string]$Domain
  [string]$CredsFile

  NetworkDrive([string]$driveLetter, [string]$sharePath, [string]$username, [string]$domain){
      $this.DriveLetter = $driveLetter
      $this.SharePath = $sharePath
      $this.Username = $username
      $this.Domain = $domain
      $this.CredsFile = "$env:USERPROFILE\drive-creds-$($driveLetter).xml"
  }

  [System.Management.Automation.PSCredential] GetCredential() {
      if (-Not (Test-Path $this.CredsFile)) {
          Write-Host "No saved credentials found for drive $($this.DriveLetter). Prompting for password..." -ForegroundColor Yellow
          $password = Read-Host "Enter password for $($this.Username)" -AsSecureString
          $password | Export-Clixml -Path $this.CredsFile
      } else {
          try {
              $password = Import-Clixml -Path $this.CredsFile
          } catch {
              Write-Host "⚠️ Error reading the saved credentials. Prompting for password..." -ForegroundColor Yellow
              $password = Read-Host "Enter password for $($this.Username)" -AsSecureString
              $password | Export-Clixml -Path $this.CredsFile
          }
      }
      return [System.Management.Automation.PSCredential]::new("$($this.Domain)\$($this.Username)", $password)
  }

      [void] MapDrive() {
      $credential = $this.GetCredential()
      try {
          # Remove existing drive
          if (Get-PSDrive -Name $this.DriveLetter -ErrorAction SilentlyContinue) {
              Remove-PSDrive -Name $this.DriveLetter -Force
              Write-Host "Removed existing drive $($this.DriveLetter)"
          }

          # Attempt to create new drive mapping
          New-PSDrive -Name $this.DriveLetter -PSProvider FileSystem -Root $this.SharePath -Credential $credential
          if (Get-PSDrive -Name $this.DriveLetter -ErrorAction SilentlyContinue) {
              Write-Host "✅ Drive $($this.DriveLetter): mapped to $($this.SharePath)." -ForegroundColor Green
              $global:LastMappedDrive = $this.DriveLetter
              # If DropPath exists, navigate to it
              if (Test-Path -PathType Container "$($this.DriveLetter):\$($this.DropPath)") {
                  Set-Location "$($this.DriveLetter):\$($this.DropPath)"
                  Write-Host "Navigated to $($this.DriveLetter):\$($this.DropPath)"
              } else {
                  Write-Host "Drop path $($this.DriveLetter):\$($this.DropPath) does not exist."
              }
          } else {
              Write-Host "⚠️ Drive $($this.DriveLetter) appears not to have been mapped correctly."
          }
      } catch {
          if ($_.Exception.Message -like "*Logon failure*") {
              Write-Error "❌ Failed to map drive $($this.DriveLetter): Bad username or password."
              $this.ClearSavedCredential()
              Write-Host "Prompting for new credentials..." -ForegroundColor Yellow
              $credential = $this.GetCredential()
              try {
                  New-PSDrive -Name $this.DriveLetter -PSProvider FileSystem -Root $this.SharePath -Credential $credential
                  Write-Host "✅ Drive $($this.DriveLetter): mapped to $($this.SharePath)." -ForegroundColor Green
                  $global:LastMappedDrive = $this.DriveLetter
              } catch {
                  Write-Error "❌ Failed to map drive $($this.DriveLetter) again: $_"
              }
          } else {
              Write-Error "❌ Failed to map drive $($this.DriveLetter): $_"
          }
      }
  }

  [void] MapDriveNetUse() {
      $password = $this.GetCredential()

     
      # Ensure the network path is accessible before attempting to map
      if (-Not (Test-Path $this.SharePath)) {
          Write-Host "Error: Network path $($this.SharePath) is not accessible." -ForegroundColor Red
          return
      }
      
      try {
          # Remove existing drive
          $existingDrive = Get-PSDrive -Name $this.DriveLetter -ErrorAction SilentlyContinue
      if ($existingDrive) {
          net use "$($this.DriveLetter):" /delete /y
          if (Get-PSDrive -Name $this.DriveLetter -ErrorAction SilentlyContinue) {
              Write-Host "Error: Could not remove existing drive $($this.DriveLetter)." -ForegroundColor Red
              return
          } else {
              Write-Host "Removed existing drive $($this.DriveLetter)"
          }
      }

          # Attempt to create new drive mapping
          $cmd = "net use $($this.DriveLetter): \`"$($this.ServerPath)\`"  /user:$($this.Domain)\$($this.Username) $password /persistent:yes"
          $result = Invoke-Expression $cmd
          start-sleep -Seconds 2
          if ($LASTEXITCODE -ne 0) {
              throw "Failed to map network drive."
          }
          if (Get-PSDrive -Name $this.DriveLetter -ErrorAction SilentlyContinue) {
              Write-Host "✅ Drive $($this.DriveLetter): mapped to $($this.SharePath)." -ForegroundColor Green
              $global:LastMappedDrive = $this.DriveLetter
              # If DropPath exists, navigate to it
              # if (Test-Path -PathType Container "$($this.DriveLetter):\$($this.DropPath)") {
              #     Set-Location "$($this.DriveLetter):\$($this.DropPath)"
              #     Write-Host "Navigated to $($this.DriveLetter):\$($this.DropPath)"
              # } else {
              #     Write-Host "Drop path $($this.DriveLetter):\$($this.DropPath) does not exist."
              # }
          } else {
              Write-Host "⚠️ Drive $($this.DriveLetter) appears not to have been mapped correctly."
          }
      } catch {
          if ($_.Exception.Message -like "*Logon failure*") {
              Write-Error "❌ Failed to map drive $($this.DriveLetter): Bad username or password."
              $this.ClearSavedCredential()
              Write-Host "Prompting for new credentials..." -ForegroundColor Yellow
              $credential = $this.GetCredential()
              try {
                  $cmd = "net use $($this.DriveLetter): \`"$($this.ServerPath)\`" $password /user:$($this.Username) /persistent:yes"
                  $result = Invoke-Expression $cmd
                  if ($LASTEXITCODE -ne 0) {
                    throw "Failed to map network drive."
                  }
                  Write-Host "✅ Drive $($this.DriveLetter): mapped to $($this.SharePath)." -ForegroundColor Green
                  $global:LastMappedDrive = $this.DriveLetter
              } catch {
                  Write-Error "❌ Failed to map drive $($this.DriveLetter) again: $_"
              }
          } else {
              Write-Error "❌ Failed to map drive $($this.DriveLetter): $_"
          }
      }
  }




  [void] ClearSavedCredential() {
      if (Test-Path $this.CredsFile) {
          Remove-Item $this.CredsFile -Force
          Write-Host "🧹 Removed saved credentials at $($this.CredsFile)"
      } else {
          Write-Host "⚠️ No saved credentials to remove for drive $($this.DriveLetter)."
      }
  }

  static [void] ListMappedDrives() {
      Get-PSDrive -PSProvider FileSystem | Where-Object { $_.DisplayRoot -like "\\*" } | Format-Table Name, Root
  }

  static [void] MapMultiple([NetworkDrive[]]$drives) {
      foreach ($drive in $drives) {
          $drive.MapDrive()
      }
  }

  static [void] ClearAllSavedCredentials() {
      Get-ChildItem "$env:USERPROFILE" -Filter "drive-creds-*.xml" | ForEach-Object {
          Remove-Item $_.FullName -Force
          Write-Host "🧹 Removed: $($_.Name)"
      }
  }
}

内容的提问来源于stack exchange，提问作者Matt Williamson