PowerShell无法获得JSON键 /值

Question

您好，我有一个JSON文件：

{
  "supports": {},
  "dependencies": {
    "AST.NxTestware.main": "1.1.0",
    "otherPackagenName": "7.7.7"
  },
  "frameworks": {
    ".NETPortable,Version=v4.5,Profile=Profile78": {}
  }
}

我正在尝试编写一个.ps1 PowerShell脚本，该脚本将在“依赖关系”下查看每个项目，检查名称是否匹配，如果是这样，请检索版本号。

但是我在“依赖项”中的每个项目中都遇到了麻烦，并且无法检索

我的PS1的包装名称字符串或版本编号，如下所示：

$targetName = "otherPackagenName"
Write-Host "Trying to get version # of $targetName if it exists inside project.json"

# get json file contents
$json = Get-Content .\project.json | ConvertFrom-Json

# retrieve dependencies 
$dependencies = $json.dependencies
Write-Host "dependencies = $dependencies"

# iterate through each dependency
foreach ($dep in $dependencies) {
    Write-Host "dep = $dep"

    # try to get dependency name (attempt1)
    $depName1 = $dep[0]
    Write-Host "depName1 = $depName1"
    
    # try to get dependency name (attempt2)
    $depName2 = $dep.Name
    Write-Host "depName2 = $depName2"

    if($depName1 -eq $targetName) {
        write-host "Found it! now get version number"
    } else {
        write-host "Did not find our package"
    }  
}

输出显示它正确检索JSON键/值对，但我无法弄清楚如何检索包装名称和版本编号，当我尝试过的每件事时，只需返回空白：

Trying to get version # of otherPackagenName if it exists inside project.json
dependencies = @{AST.NxTestware.main=1.1.0; otherPackagenName=7.7.7}
dep = @{AST.NxTestware.main=1.1.0; otherPackagenName=7.7.7}
depName1 = @{AST.NxTestware.main=1.1.0; otherPackagenName=7.7.7}
depName2 =
Did not find our package

我的依赖项即将通过：

@{AST.NxTestware.main=1.1.0; otherPackagenName=7.7.7}

我如何迭代此对象？

如何检索键（' ast.nxtestware.main'）and value（'1.1.0'）适用于每个依赖关系？

Answer 1

我猜您正在寻找这个：

$json.Dependencies | ForEach-Object {
    $prop = $_.PSObject.Properties

    [pscustomobject]@{
        DependencyName = $prop.Name
        Version        = [version] $prop.Value
    }
}

您可以通过访问对象的 和属性 value 。 microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about/about/about_intrinsic_members?view=Powershell-7.2#psobject“ rel =” rel =“ nofollow noreferrer” ，从那里您可以参考 属性属性 。