如何修复PowerShell脚本使Palworld服务器监控持续运行？

问题根源 #

你的脚本在while循环中每次都会调用Commands函数，而该函数内的Read-Host是阻塞式的——它会暂停整个脚本的执行，直到用户输入内容并按下回车。这就导致监控检查（崩溃重启、内存检测）只执行一次后就卡在等待输入的状态，无法自动重复运行。

解决方案 #

要实现监控循环自动执行，同时保留用户输入命令的功能，需要将用户输入的处理改为非阻塞式。可以通过检测控制台是否有输入可用，避免脚本被Read-Host卡住。

修改后的完整脚本 #

# SteamCMD Pfad
$SteamPfad = '...\steamcmd.exe'

# Palworld
$PalworldPfad = '...\PalServer.exe'
$PalworldLaunchOptions = "-publiclobby -log"

# ARRCON
$ARRCONHost = '...'
$ARRCONPort = '...'
$ARRCONPassword = '...'

# Discord
$DiscordWebhook = '...'

# PowerShell Variablen
$ramThreshold = 2 * 1024 * 1024 * 1024  # 2GB for testing, normally 16GB max

function Start-Server {
    Write-Host "PalShell v.1.0 by Gerrxt"
    Write-Host "-------------------"
    Write-Host "Server Startet..."
    Start-Process -FilePath $PalworldPfad -ArgumentList $PalworldLaunchOptions

    $DiscordPayload = @{
        content = "Der Palworld Server wurde gestartet!"
        username = "Palshell"
        avatar_url = "..."
    }

    $DiscordJsonPayload = $DiscordPayload | ConvertTo-Json
    Invoke-RestMethod -Uri $DiscordWebhook -Method Post -Body $DiscordJsonPayload -ContentType "application/json"
}

function Stop-Server {
    Write-Host "Server Stoppt..."
    C:\Users\Administrator\Desktop\PalShell\ARRCON.exe -H $ARRCONHost -P $ARRCONPort -p $ARRCONPassword "save"
    C:\Users\Administrator\Desktop\PalShell\ARRCON.exe -H $ARRCONHost -P $ARRCONPort -p $ARRCONPassword "shutdown 10 Der Server stoppt in 10 Sekunden!"

    $DiscordPayload = @{
        content = "Der Palworld Server wird herruntergefahren!"
        username = "Palshell"
        avatar_url = "..."
    }

    $DiscordJsonPayload = $DiscordPayload | ConvertTo-Json
    Invoke-RestMethod -Uri $DiscordWebhook -Method Post -Body $DiscordJsonPayload -ContentType "application/json"
}

function Update-Server {
    Write-Host "Nach Updates wird gesucht..."

    $updateOutput = Start-Process -FilePath $SteamPfad -ArgumentList "+force_install_dir C:\...\Palworld +login anonymous +app_update 2394010 validate +quit" -NoNewWindow -Wait -PassThru

    if ($updateOutput.ExitCode -eq 0) {
        Write-Host "Es gibt kein neues Update."
    } else {
        Write-Host "Ein Update wurde gefunden und installiert. Der Server startet."

        $DiscordPayload = @{
            content = "Der Palworld Server wurde aktualisiert!"
            username = "Palshell"
            avatar_url = "..."
        }
    
        $DiscordJsonPayload = $DiscordPayload | ConvertTo-Json
        Invoke-RestMethod -Uri $DiscordWebhook -Method Post -Body $DiscordJsonPayload -ContentType "application/json"
    }
}

function Check-ProcessRAMUsage {
    param (
        [string]$processName,
        [long]$ramThreshold
    )

    $process = Get-Process -Name $processName -ErrorAction SilentlyContinue

    Write-Host "DEBUG: Internal RAM Check..."

    if ($process) {
        $ramUsage = $process.WorkingSet64

        if ($ramUsage -gt $ramThreshold) {
            Write-Host "Warnung: Der Server verwendet mehr als 16GB RAM!"

            $DiscordPayload = @{
                content = "Warnung: Der Palworld Server verwendet mehr als 16GB RAM!"
                username = "Palshell"
                avatar_url = "..."
            }
            
            $DiscordJsonPayload = $DiscordPayload | ConvertTo-Json
            Invoke-RestMethod -Uri $DiscordWebhook -Method Post -Body $DiscordJsonPayload -ContentType "application/json"

            Write-Host "Der Server wird neugestartet..."
            Stop-Server
            Start-Sleep -Seconds 15
            Start-Server
        }
    } else {
        Write-Host "Process $processName not found."
    }
}

function Process-UserCommand {
    param (
        [ref]$stopRequested
    )
    
    $user_input = Read-Host "Nutze einen der PalShell Befehle (Hilfe: help)"
    
    switch ($user_input) {
        "stop" {
            Stop-Server
            Write-Output "Der Server wird heruntergefahren. Die Powershell schliesst automatisch."
            Start-Sleep -Seconds 5
            $stopRequested.Value = $true
        }
        "help" {
            Write-Output ""
            Write-Output "Befehle:"
            Write-Output "help (Zeige die Befehle an.)"
            Write-Output "stop (Palworld Server stoppt.)"
            Write-Output "neustart (Der Server wird neugestartet.)"
            Write-Output ""
        }
        "neustart" {
            Write-Output "Der Server wird neugestartet..."
            Stop-Server
            Start-Sleep -Seconds 15
            Start-Server
        }
        default {
            Write-Output "Diesen Befehl gibt es nicht. Nutze help um die Befehle anzuzeigen."
        }
    }
}

#Update-Server #Excluded for testing, but its working
Start-Server

$stopRequested = $false
$processName = "PalServer-Win64-Shipping-Cmd"
$checkInterval = 5  # 调整监控检查的间隔时间（秒）

while (-not $stopRequested) {
    Write-Host "DEBUG: Server Status Check..."
    $serverProcess = Get-Process -Name $processName -ErrorAction SilentlyContinue
    if (-not $serverProcess) {
        Write-Host "Server gecrasht. Starte Neu..."

        $DiscordPayload = @{
            content = "Der Palworld Server ist gecrashed."
            username = "Palshell"
            avatar_url = "..."
        }
    
        $DiscordJsonPayload = $DiscordPayload | ConvertTo-Json
        Invoke-RestMethod -Uri $DiscordWebhook -Method Post -Body $DiscordJsonPayload -ContentType "application/json"

        Start-Server
    }

    Write-Host "DEBUG: Server RAM Check..."
    Check-ProcessRAMUsage -processName $processName -ramThreshold $ramThreshold

    # 非阻塞式检测用户输入
    if ([Console]::KeyAvailable) {
        Write-Host "`nDEBUG: 检测到用户输入，处理命令..."
        Process-UserCommand -stopRequested ([ref]$stopRequested)
    }

    Start-Sleep -Seconds $checkInterval
}

关键修改点 #

1. 重命名函数：将原Commands函数改为Process-UserCommand，语义更清晰。
2. 非阻塞输入检测：在循环中使用[Console]::KeyAvailable判断是否有用户输入，只有当用户按下按键时才调用命令处理函数，避免脚本被阻塞。
3. 调整监控间隔：新增$checkInterval变量，让你可以灵活设置监控检查的时间间隔（默认5秒，可根据需求调整）。

说明 #

修改后的脚本会持续循环执行崩溃检测和内存监控，同时在后台监听用户输入。当你需要执行命令时，直接输入对应的指令并回车即可，脚本会立即处理命令，之后继续恢复自动监控。

内容的提问来源于stack exchange，提问作者Gerrxt