Question

这个问题与this question类似，并且得到了this question的帮助，但我认为我申请的json解析应该有效：

println(json.value[i].properties.instanceData)

结果

{
   "Microsoft.Resources" : {
      "location" : "Asiseast",
      "tags" : {
         "costCentre" : "2222",
         "Department" : "DEPT",
         "Project" : "IaaS"
      },
      "resourceUri" : "/subscriptions/xxx-xxx-xxx-xxx/resourceGroups/RGNAME/providers/Microsoft.Compute/virtualMachines/VMNAME",
      "additionalInfo" : {
         "ServiceType" : "",
         "ImageType" : "",
         "VMProperties" : "",
         "UsageType" : "DataTrOut",
         "VMName" : ""
      }
   }
}

我尝试使用以下查询来提取“Microsoft-Resources”的值 -

println(json.value[i].properties.instanceData["Microsoft.Resources"])

但我收到以下回复：

Caught: groovy.lang.MissingPropertyException: No such property: Microsoft.Resources for class: java.lang.String

尝试 -

println(json.value[i].properties.instanceData."Microsoft.Resources")

结果：

Caught: groovy.lang.MissingPropertyException: No such property: Microsoft.Resources for class: java.lang.String

供参考，输出到

println(json.value[i].properties)

是

[subscriptionId:xxx-xxx-xxx-xxx-xxx,     
     usageStartTime:2018-01-01T00:00:00+00:00, 
     usageEndTime:2018-01-02T00:00:00+00:00, 
     meterName:Premium Storage - Snapshots (GB), 
     meterRegion:AU East, 
     meterCategory:Storage, 
     meterSubCategory:Locally Redundant, 
     unit:GB, 
     instanceData:
          {
           "Microsoft.Resources":{
               "resourceUri":"/subscriptions/ xxx-xxx-xxx-xxx-xxx /resourceGroups/RGNAME/providers/Microsoft.Storage/storageAccounts/STGNAME",
               "location":"aueast",
               "tags":{
                   "Project":"XXX",
                   "costCentre":"1234"
                 }
            }
       },
     meterId:b74c1bd6-c0ea-4248-b00a-dfe2afce7af0, 
     infoFields:[:], 
     quantity:0.005514

Answer 1

发生这种情况的原因是json.value [i] .properties.instanceData是 String 的实例，如错误消息中所述。

您需要将此字符串解析为json。

def parsedJson = new groovy.json.JsonSlurper().parseText(json.value[i].properties.instanceData)
println parsedJson['Microsoft.Resources']

解析json嵌套对象

1 个答案: