json - 从JSON提取值

Question

我正在尝试使用PowerShell从JSON对象提取值，我具有以下JSON:

{
    "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
     "clusterName": {
      "value": "hbasehd35"
    },
     "location": {
      "value": "East US 2"
    },
     "clusterType": {
      "value": "hbase"
    },
     "clusterVersion": {
      "value": "3.5"
    },
     "clusterWorkerNodeCount": {
      "value": 5
    },
     "subnetName": {
      "value": "hbase-subnet"
    },
     "headNodeSize": {
      "value": "Standard_D12_v2"
    },
     "workerNodeSize": {
      "value": "Standard_D12_v2"
    },
     "zookeeperSize": {
      "value": "Large"
    },
     "clusterStorageAccountName": {
      "value": "hbasestorage"
    },
     "storageAccountType": {
      "value": "Standard_GRS"
    },
     "Environment": {
      "value": "test"
    }
  }
}

在这里，我想使用powershell从此文件中提取 clusterStorageAccountName，并将其分配给变量。

有人知道怎么做吗 ？

Answer 1

使用Get-Content cmdlet读取文件，使用ConvertFrom-Json cmdlet进行转换，然后访问所需的属性:

$yourVariable = (Get-Content 'yourJsonFilePath.json' | ConvertFrom-Json).parameters.clusterStorageAccountName.value