循环json对象在Powershell中使用for循环或while循环

Question

由于我是Powershell的新手，有人可以在循环部分提供支持吗？以下是来自Test.json文件的json格式：

{
    "Pre-Production_AFM": {
        "allowedapps": ["app1", "app2"]
    },
    "Production_AFM": {
        "allowedapps": ["app1", "app2"]
    }
}

我正在阅读下面的json文件

$json = (Get-Content "Test.json“-Raw) | ConvertFrom-Json

我需要循环并获得第一个和第二个对象- "Pre-Production_AFM“和"Production_AFM”一个接一个动态地。

现在，我已经编写了如下代码：

foreach($i in $json){

        if($i -contains "AFM"){
       Write host "execute some code"
     }
}

我的问题是-- $i会动态地保存对象"Pre-Production_AFM“吗？如果不是，请建议一个接一个地动态获取对象以供进一步执行的方法。

Answer 1

# read the json text
$json = @"
{
    "Pre-Production_AFM": {
        "allowedapps": ["app1", "app2"]
    },
    "Production_AFM": {
        "allowedapps": ["app1", "app2"]
    }
}
"@

# convert to a PSCustomObject
$data = $json | ConvertFrom-Json

# just to prove it's a PSCustomObject...
$data.GetType().FullName
# System.Management.Automation.PSCustomObject

# now we can filter the properties by name like this:
$afmProperties = $data.psobject.Properties | where-object { $_.Name -like "*_AFM" };

# and loop through all the "*_AFM" properties
foreach( $afmProperty in $afmProperties )
{
   $allowedApps = $afmProperty.Value.allowedApps
   # do stuff
}