我正在尝试创建一个简单的TFS vNext任务，使用Powershell执行Powershell脚本。
我可以加载任务，但在使用任务触发发布后，我得到了
##[error]System.Management.Automation.ParameterBindingException: A parameter cannot be found that matches parameter name 'PoolName'.
我的task.json如下。
{
"id": "7fe28fb2-c323-4494-beb6-b5c5939b09e7",
"name": "ManageIIS",
"friendlyName": "ManageIIS",
"description": "ManageIIS",
"helpMarkDown": "ManageIIS",
"category": "Utility",
"visibility": [
"Build"
],
"author": "Baskar Lingam",
"version": {
"Major": 1,
"Minor": 0,
"Patch": 3
},
"demands": [],
"minimumAgentVersion": "1.83.0",
"groups": [
{
"name": "advanced",
"displayName": "Advanced",
"isExpanded": false
}
],
"instanceNameFormat": "ManageIIS",
"inputs": [
{
"name": "PoolName",
"type": "string",
"label": "Application Pool Name",
"required": true,
"defaultValue": "AppPoolName"
},
{
"name": "AppPoolAction",
"type": "pickList",
"label": "App Pool Action (Stop or Start)",
"required": true,
"defaultValue": "",
"helpMarkDown": "Name of the Database",
"options": {
"Stop": "Stop App Pool",
"Start": "Start App Pool"
}
},
{
"name": "ResetIIS",
"type": "boolean",
"label": "Reset IIS",
"defaultValue": "false",
"required": true,
"helpMarkDown": "To reset IIS on a web server"
}
],
"execution": {
"PowerShell": {
"target": "ManageIIS.ps1",
"argumentFormat": "",
"workingDirectory": "$(currentDirectory)"
}
}
}
我的Powershell脚本就在这里。
#####################################################################
# Author : Baskar Lingam Ramachandran
# Created Date : 25th Nov 2016
# Updated Date : 30th Nov 2016
######################################################################
[CmdletBinding()]
Param()
Trace-VstsEnteringInvocation $MyInvocation
try
{
# Get the inputs.
[string]$PoolName = Get-VstsInput -Name PoolName
[string]$AppPoolAction = Get-VstsInput -Name AppPoolAction
[bool]$ResetIIS = Get-VstsInput -Name ResetIIS -AsBool
# Load the require module to manage IIS
<#if(-not(Get-Module WebAdministration))
{
Import-Module WebAdministration
}
#>
# Code for App pool stop or start
if (($AppPoolAction -eq "Stop") -or ($AppPoolAction -eq "Start"))
{
if(-not($PoolName))
{
Write-Host "`t`tApp pool name is not provided. Please provide the same.`r`n" -ForegroundColor Green
}
else
{
if($AppPoolAction -eq "Stop")
{
if(Test-Path IIS:\AppPools\$PoolName)
{
Write-Host "`t`tApp Pool $PoolName exists`r`n"
if(-not((Get-WebAppPoolState $PoolName).Value -eq "stopped"))
{
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tStopping application pool $PoolName`r`n"
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tApp Pool $PoolName is not stopped. Stopping it now.`r`n" -ForegroundColor DarkYellow
Stop-WebAppPool $PoolName
Write-Host "`t`tThe command execution is complete.`r`n" -ForegroundColor Cyan
$appPoolState = Get-WebAppPoolState $PoolName
Write-Host "`t`tThe current state of the app pool $PoolName is $($appPoolState.Value).`r`n" -ForegroundColor DarkMagenta
}
else
{
Write-Host "`t`tApp Pool $PoolName is already stopped.`r`n" -ForegroundColor DarkGreen
}
}
else
{
Write-Host "`t`tApp Pool $PoolName does not exist`r`n" -ForegroundColor DarkRed
}
}
if($AppPoolAction -eq "Start")
{
if(Test-Path IIS:\AppPools\$PoolName)
{
Write-Host "`t`tApp Pool $PoolName exists`r`n"
if(-not((Get-WebAppPoolState $PoolName).Value -eq "Started"))
{
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tStarting application pool $PoolName`r`n"
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tApp Pool $PoolName is not started. Starting it now.`r`n" -ForegroundColor DarkYellow
Start-WebAppPool $PoolName
Write-Host "`t`tThe command execution is complete.`r`n" -ForegroundColor Cyan
$appPoolState = Get-WebAppPoolState $PoolName
Write-Host "`t`tThe current state of the app pool $PoolName is $($appPoolState.Value).`r`n" -ForegroundColor DarkMagenta
}
else
{
Write-Host "`t`tApp Pool $PoolName is already started.`r`n" -ForegroundColor DarkGreen
}
}
else
{
Write-Host "`t`tApp Pool $PoolName does not exist`r`n" -ForegroundColor DarkRed
}
}
}
}
if ($ResetIIS -eq "true")
{
iisreset -stop -noforce
if ($LASTEXITCODE -eq 0)
{
Write-Host "`t`tInternet services successfully stopped`r`n" -ForegroundColor DarkGreen
}
iisreset -start -noforce
if ($LASTEXITCODE -eq 0)
{
Write-Host "`t`tInternet services successfully started`r`n" -ForegroundColor DarkRed
}
}
} finally {
Trace-VstsLeavingInvocation $MyInvocation
}
我有另一个简单的任务，它不带任何参数，它完全正常。
任何指针？
我错过了什么？
答案 0 :(得分：5)
如果您使用的是VSTS Build Task SDK，则需要使用Powershell 3 ..
＆＃34;执行＆＃34;：{＆＃34; PowerShell3＆＃34;：{＆＃34;目标＆＃34;：＆＃34; ManageIIS.ps1＆＃34;，}}
答案 1 :(得分：2)
从脚本上下文错误，我可以看到您目前收到的错误是因为powershell无法获取“ PoolName ”中的值 Get-VstsInput “命令。
其次，如果你在脚本中动态传递参数，那么你必须使用参数内的参数。
我仍然建议你使用Args [0]，Args [1]等作为参数传递的方法。 大多数情况下，我们在函数中使用params。
我相信您之前已经在某处编译了函数（“ Trace-VstsEnteringInvocation ”和“ Get-VstsInput ”）;其他明智的做法会让你误以为是无法识别的术语。
根据你的脚本，我稍微调整了一下，并对脚本进行了评论; 以下是剧本：
#####################################################################
# Author : Baskar Lingam Ramachandran
# Created Date : 25th Nov 2016
# Updated Date : 30th Nov 2016
######################################################################
[CmdletBinding()]
Param($PoolName,$AppPoolAction,$ResetIIS) # Taking the input as parameters
# I would suggest you to make the functions as Global so that you can use it anywhere freely and call from any block.
Trace-VstsEnteringInvocation $MyInvocation
try
{
# Get the inputs.
[string]$PoolName = Get-VstsInput -Name PoolName
"The value of PoolName is $PoolName" # This helps in input validation, we can check it if it is returning the proper value or not.
[string]$AppPoolAction = Get-VstsInput -Name AppPoolAction
[bool]$ResetIIS = Get-VstsInput -Name ResetIIS -AsBool
# Load the require module to manage IIS
<#if(-not(Get-Module WebAdministration))
{
Import-Module WebAdministration
}
#>
# Code for App pool stop or start
if (($AppPoolAction -eq "Stop") -or ($AppPoolAction -eq "Start"))
{
if(-not($PoolName))
{
Write-Host "`t`tApp pool name is not provided. Please provide the same.`r`n" -ForegroundColor Green
}
else
{
if($AppPoolAction -eq "Stop")
{
if(Test-Path IIS:\AppPools\$PoolName)
{
Write-Host "`t`tApp Pool $PoolName exists`r`n"
if(-not((Get-WebAppPoolState $PoolName).Value -eq "stopped"))
{
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tStopping application pool $PoolName`r`n"
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tApp Pool $PoolName is not stopped. Stopping it now.`r`n" -ForegroundColor DarkYellow
Stop-WebAppPool $PoolName
Write-Host "`t`tThe command execution is complete.`r`n" -ForegroundColor Cyan
$appPoolState = Get-WebAppPoolState $PoolName
Write-Host "`t`tThe current state of the app pool $PoolName is $($appPoolState.Value).`r`n" -ForegroundColor DarkMagenta
}
else
{
Write-Host "`t`tApp Pool $PoolName is already stopped.`r`n" -ForegroundColor DarkGreen
}
}
else
{
Write-Host "`t`tApp Pool $PoolName does not exist`r`n" -ForegroundColor DarkRed
}
}
if($AppPoolAction -eq "Start")
{
if(Test-Path IIS:\AppPools\$PoolName)
{
Write-Host "`t`tApp Pool $PoolName exists`r`n"
if(-not((Get-WebAppPoolState $PoolName).Value -eq "Started"))
{
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tStarting application pool $PoolName`r`n"
Write-Host "`t`t-------------------------------------------------`r`n"
Write-Host "`t`tApp Pool $PoolName is not started. Starting it now.`r`n" -ForegroundColor DarkYellow
Start-WebAppPool $PoolName
Write-Host "`t`tThe command execution is complete.`r`n" -ForegroundColor Cyan
$appPoolState = Get-WebAppPoolState $PoolName
Write-Host "`t`tThe current state of the app pool $PoolName is $($appPoolState.Value).`r`n" -ForegroundColor DarkMagenta
}
else
{
Write-Host "`t`tApp Pool $PoolName is already started.`r`n" -ForegroundColor DarkGreen
}
}
else
{
Write-Host "`t`tApp Pool $PoolName does not exist`r`n" -ForegroundColor DarkRed
}
}
}
}
if ($ResetIIS -eq "true")
{
iisreset -stop -noforce
if ($LASTEXITCODE -eq 0)
{
Write-Host "`t`tInternet services successfully stopped`r`n" -ForegroundColor DarkGreen
}
iisreset -start -noforce
if ($LASTEXITCODE -eq 0)
{
Write-Host "`t`tInternet services successfully started`r`n" -ForegroundColor DarkRed
}
}
} finally {
Trace-VstsLeavingInvocation $MyInvocation
}
希望这个答案足够/帮助你。随意喜欢它，因为这也会对其他人有所帮助。
答案 2 :(得分：0)
我正在回答我的问题，因为除了Ranadip Gupta的回答之外，我找到了另一种工作方式（在VSTS Microsoft任务中使用https://github.com/Microsoft/vsts-tasks/tree/master/Tasks）。我赞成Ranadip的答案。但是提供我自己的答案，因为还有另一种方式。
我从PS1脚本中删除了Trace-VstsEnteringInvocation，Trace-VstsLeavingInvocation和Get-VstsInput命令后，Ranadip Gupta的答案很有效。
您需要在param（）中定义参数，如下所示，以使此方法有效。
param（[string] $ PoolName，[string] $ AppPoolAction，[string] $ ResetIIS）
要在PS1中使用Args []，请注意传递给PS1的参数格式为
-PoolName TFD -AppPoolAction Stop -ResetIIS true
所以你需要使用$（$ Args [1]），$（$ Args [3]），$（$ Args [5]）来引用为各种参数获得的值，如$（$ Args） [0]），$（$ Args [2]），$（$ Args [4]）引用参数本身。
第二种方法是将 task.json 的执行从 Powershell更改为Powershell3 。使用此方法，我可以使用Trace-Vsts *和Get-VstsInput命令。在这个方法中，param（[string] $ PoolName，[string] $ AppPoolAction，[string] $ ResetIIS）可以保存为param（）。
这
＆＃34;执行＆＃34;：{ ＆＃34; PowerShell＆＃34;：{ ＆＃34; target＆＃34;：＆＃34; ManageIIS.ps1＆＃34;， } }
到
＆＃34;执行＆＃34;：{ ＆＃34; PowerShell3＆＃34; ：{ ＆＃34; target＆＃34;：＆＃34; ManageIIS.ps1＆＃34;， } }