如何識別Json語法以獲取值

我需要幫助來構建正確的語法以達到下圖中突出顯示的值。

附圖顯示了 JSON 結構，但我無法撰寫正確的語法來達到值“7:00”。

我試過這段代碼，但沒有成功。

$WebHookData = @"
    {"source":"la-draft-clipboard","value":[{"tokenKey":"8EAD3F03-E08F-4D58-8B1A-2AB8BD2F25DB","type":"literal","tokenExpression":"{"},{"tokenKey":"A7596123-17DF-49A9-AC18-1196A4CD457E","type":"new_line","tokenExpression":"\n"},{"tokenKey":"36DF511D-C1A9-4BC8-B2E9-37BCA058FB78","type":"literal","tokenExpression":" \"AutomationAccountName\": \"proj-00016-automation-account\","},{"tokenKey":"918137AE-EC61-4B77-A5F2-B527E2D4E3C9","type":"new_line","tokenExpression":"\n"},{"tokenKey":"DCC2D1C1-14F0-4869-A44C-08F8AB35B0B3","type":"literal","tokenExpression":" \"BeginPeakTime\": \"7:00\","},{"tokenKey":"61F7441B-0688-4AD2-A1A5-086C4F7F6D1E","type":"new_line","tokenExpression":"\n"},{"tokenKey":"2F3DD3CA-BD83-46EF-9529-C890C2E31CAF","type":"literal","tokenExpression":" \"ConnectionAssetName\": \"AzureRunAsConnection\","},{"tokenKey":"C6DD6FD0-E99A-48A8-96AA-3974D66FD9BD","type":"new_line","tokenExpression":"\n"},{"tokenKey":"A4E7A469-D08A-4C5A-8C6B-06E58996A0EC","type":"literal","tokenExpression":" \"EndPeakTime\": \"17:00\","},{"tokenKey":"E67547BC-98BB-4749-A84E-A36B761EE504","type":"new_line","tokenExpression":"\n"},{"tokenKey":"727D64BD-906C-4DA3-84C5-44F3054B2DEB","type":"literal","tokenExpression":" \"HostPoolName\": \"VDI-POOL-001\","},{"tokenKey":"92AFEBB8-4307-42C2-8BD0-C55ACC848940","type":"new_line","tokenExpression":"\n"},{"tokenKey":"F37993F9-1471-4E58-B43F-9BB08C4D4A03","type":"literal","tokenExpression":" \"LimitSecondsToForceLogOffUser\": 0,"},{"tokenKey":"8B2517D1-046E-43EF-BF75-B1EC5F31B83D","type":"new_line","tokenExpression":"\n"},{"tokenKey":"7464316E-6A8D-4F82-B269-95FF76A69014","type":"literal","tokenExpression":" \"LogOffMessageBody\": \"Salve seus trabalhos! Em aproximadamente 15 minutos, este terminal virtual será desligado automaticamente devido às políticas de otimiza??o de custos da companhia. Caso seja necessário continuar suas atividades, um novo terminal poderá ser acessado após este período.\","},{"tokenKey":"7328955E-0025-4AA1-A0AE-CDAFA4238927","type":"new_line","tokenExpression":"\n"},{"tokenKey":"384AF3CF-CA86-4820-A5E1-230C09909662","type":"literal","tokenExpression":" \"LogOffMessageTitle\": \"ATEN??O!!!\","},{"tokenKey":"5E2EBD78-8599-487F-8DC5-CF9699595DDD","type":"new_line","tokenExpression":"\n"},{"tokenKey":"B7E409AF-A5AE-4622-A45E-5982FD15B03E","type":"literal","tokenExpression":" \"MaintenanceTagName\": \"NO_TAG\","},{"tokenKey":"3F9BF963-790D-45B1-9F04-D71A2B7C84DC","type":"new_line","tokenExpression":"\n"},{"tokenKey":"B6E94E37-69C0-4BF8-AE69-CD7B4EA9CB83","type":"literal","tokenExpression":" \"MinimumNumberOfRDSH\": 20,"},{"tokenKey":"00A1D37B-F82B-42F6-B792-75B39EBD6A83","type":"new_line","tokenExpression":"\n"},{"tokenKey":"F41B0C75-4541-4772-BF30-2D4F6DF045C6","type":"literal","tokenExpression":" \"ResourceGroupName\": \"proj-00016-wvd-rg\","},{"tokenKey":"FE6FC329-DC12-4782-83CE-F48BDC6B74B5","type":"new_line","tokenExpression":"\n"},{"tokenKey":"785500F8-3D71-4D91-AADA-D6ABF1EFD66B","type":"literal","tokenExpression":" \"ResourceGroupNameAutomation\": \"proj-00016-automation-rg\","},{"tokenKey":"BD3331BF-3BF9-4B9E-B9B8-C03E448B2D85","type":"new_line","tokenExpression":"\n"},{"tokenKey":"25586050-62A0-4CAF-81FD-C5770DF20B63","type":"literal","tokenExpression":" \"RunbookLogoffShutdown\": \"ARMLogoffAndShutdown\","},{"tokenKey":"C4B9E432-C41D-4374-9531-F2AEFDD51267","type":"new_line","tokenExpression":"\n"},{"tokenKey":"0155B6AB-7CAB-4C4E-BB1F-A643D9B0575B","type":"literal","tokenExpression":" \"SessionThresholdPerCPU\": 0.75,"},{"tokenKey":"3EAA1C7E-0119-40B9-9AF8-85D10E0FA3FD","type":"new_line","tokenExpression":"\n"},{"tokenKey":"2D904698-1386-47D7-9513-7CEE702BA0D3","type":"literal","tokenExpression":" \"TimeDifference\": \"-3:00\""},{"tokenKey":"40D497B6-AAED-4334-81C7-10B8C6745DE0","type":"new_line","tokenExpression":"\n"},{"tokenKey":"18EB90AF-25D4-4956-8A85-41BA555C6A95","type":"literal","tokenExpression":"}"}]}
"@ | set-content jsonfile.json1

$json1 = (Get-Content "jsonfile.json1" -Raw) | ConvertFrom-Json


$aa = $WebHookData.source.value[0]

Write-Output $aa

uj5u.com熱心網友回復：

如果你只是想查看所有tokenExpression的在value陣：

$json1.value.tokenExpression

如果你想獲得這個BeginPeakTime值，你需要使用一些正則運算式來做到這一點：

$peakTime = $json1.value.tokenExpression |
    Where-Object { $_ -match 'BeginPeakTime. ?(\d :\d )' } |
    ForEach-Object { $Matches[1] }

$peakTime

uj5u.com熱心網友回復：

您可以嘗試這樣的操作，我不確定您要查找的專案是否特別包含“BeginPeakTime”字樣：

$peaktime = $json1.Value.where({
    $_.tokenExpression -match 'BeginPeakTime.*"(?<peaktime>[\d:] )"'
})

然后，如果您檢查自動變數$Matches：

PS /home/> $matches

Name                           Value
----                           -----
peaktime                       7:00
0                              BeginPeakTime": "7:00"

PS /home/> $matches['peaktime']

7:00

并且變數$peaktime包含匹配的元素：

tokenKey                             type    tokenExpression
--------                             ----    ---------------
DCC2D1C1-14F0-4869-A44C-08F8AB35B0B3 literal  "BeginPeakTime": "7:00",

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