Looping through JSON array and print out same key values

问题

Have JSON array with multiple keys of same which shows time in epoch, want to print then out and convert time to EST

{
"contents":[
      { 
        "name":"windows-Instance",
        "Buildid":"1234",
        "Buildtime":"1563350400238"
      },
      {
        "name":"linux-Instance",
        "Buildid":"1454",
        "Buildtime":"1563264000198"
      },
      {
      "name":"linux-Instance",
        "Buildid":"1278685",
        "Buildtime":"1563177600092"
       }
  ]
}

回答1:

You can try this out to print each objects converted Epoch to current timezone:

Function Get-EpochDate ($epochDate) { [timezone]::CurrentTimeZone.ToLocalTime(([datetime]'1/1/1970').AddMilliseconds($epochDate)) }

$contents = (Get-Content .\test.json | ConvertFrom-Json).contents

foreach ($object in $contents) {
    $seconds = [long]$object.Buildtime
    Write-Output (Get-EpochDate $seconds)
}

Output:

Wednesday, 17 July 2019 4:00:00 PM
Tuesday, 16 July 2019 4:00:00 PM  
Monday, 15 July 2019 4:00:00 PM

来源：https://stackoverflow.com/questions/57083003/looping-through-json-array-and-print-out-same-key-values