当通过json对象循环时意外的结果

我有一个小应用程序，它使http调用api来检索资源状态。我得到类似于此的JSON响应：当通过json对象循环时意外的结果

{ "listcapacityresponse" : { "count":6 ,"capacity" : [ {"type":6,"zoneid":"f26c2094-f2ca-4951-9265-a3f036e7f045","zonename":" CloudPlatform 1","capacityused":45660766208,"capacitytotal":106308304896,"percentused":"42.95"}, {"type":8,"zoneid":"f26c2094-f2ca-4951-9265-a3f036e7f045","zonename":" CloudPlatform 1","capacityused":5,"capacitytotal":18,"percentused":"27.78"}, {"type":5,"zoneid":"f26c2094-f2ca-4951-9265-a3f036e7f045","zonename":" CloudPlatform 1","capacityused":3,"capacitytotal":12,"percentused":"25"}, {"type":3,"zoneid":"f26c2094-f2ca-4951-9265-a3f036e7f045","zonename":" CloudPlatform 1","capacityused":90202701824,"capacitytotal":1099511627776,"percentused":"8.2"}, {"type":1,"zoneid":"f26c2094-f2ca-4951-9265-a3f036e7f045","zonename":" CloudPlatform 1","capacityused":1500,"capacitytotal":52800,"percentused":"2.84"}, {"type":0,"zoneid":"f26c2094-f2ca-4951-9265-a3f036e7f045","zonename":" CloudPlatform 1","capacityused":1476395008,"capacitytotal":97078222080,"percentused":"1.52"} ] } }

基本上，有6种类型的资源的它们是：

0内存使用 1级的CPU使用率 3主存储 5级管理的IP 6次存储 8共享的网络IPS

我解析的JSON这样的：

Dim dtoObj = Newtonsoft.Json.JsonConvert.DeserializeObject(Of RootObject)(resourceusageresponse) 
     For Each resource As Capacity In dtoObj.listcapacityresponse.capacity 

    If resource.type = 0 Then 
       Dim memoryusedpercent As String = resource.percentused 
      ElseIf resource.type = 1 Then 
       Dim cpuusedpercent As String = resource.percentused 
      ElseIf resource.type = 3 Then 
       Dim pristorageusedpercent As String = resource.percentused 
      ElseIf resource.type = 5 Then 
       Dim mgmtippercent As String = resource.percentused 
      ElseIf resource.type = 6 Then 
       Dim secstoragepercent As String = resource.percentused 
      ElseIf resource.type = 8 Then 
       Dim guestippercent As String = resource.percentused 
      End If 

     Next

我希望if语句中的每个变量在完成解析后都会被填充（我现在只对真正的百分比感兴趣），但是我只是得到空变量而没有错误。

我是否缺少明显的东西？

我迫不及待想把我的项目的这一点关闭，这是我最后一件事！

任何帮助appriciated！ :)

来源

2014-01-30 John

您的变量将超出If语句的范围。在你开始你的循环之前，黯淡那些坏男孩，然后你应该有价值观。 – N0Alias

啊我明白了，我的意思是改变这些，但是我有在顶部以下... 公共memoryusedpercent的String =“” 公共cpuusedpercent的String =“” 公共pristorageusedpercent的String =“” 公共mgmtippercent As String =“” Public secstoragepercent As String =“” Public guestiperscent As String =“” 所以我会认为这已经足够了。我会整理他们现在再试一次 – John

ahhh的确，一旦我收拾起来，我有我期待的回应！谢谢你亲切的先生！ – John

变量将超出If语句的范围。把它们放在循环的上方，你应该没问题。

来源

2014-01-30 22:28:17 N0Alias

当通过json对象循环时意外的结果

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