javascript中JSON数据的解析

我对返回JSON数据的服务进行了API调用。如果我使用：JSON.parse（response.body）记录数据

这将被记录：

{ Results: 
   [ { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2016-03-25T21:28:22Z',
       MonitorType: 0,
       NodeName: 'fmsHealthMonitorAppId01',
       Status: 0 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2016-03-25T21:30:15Z',
       MonitorType: 1,
       NodeName: 'fmsHealthMonitorAppId01',
       Status: 0 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2016-03-25T21:30:15Z',
       MonitorType: 2,
       NodeName: 'fmsHealthMonitorAppId01',
       Status: 0 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2016-03-25T21:28:49Z',
       MonitorType: 0,
       NodeName: 'fmsHealthMonitorAppId02',
       Status: 0 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2016-03-25T21:35:23Z',
       MonitorType: 1,
       NodeName: 'fmsHealthMonitorAppId02',
       Status: 0 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2016-03-25T21:35:23Z',
       MonitorType: 2,
       NodeName: 'fmsHealthMonitorAppId02',
       Status: 0 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2014-11-03T16:20:15Z',
       MonitorType: 0,
       NodeName: 'fmsHealthMonitorAppId03',
       Status: 2 },
     { Interval: 900,
       IsNodeActive: true,
       LastOccurrence: '2013-08-30T21:44:41Z',
       MonitorType: 0,
       NodeName: 'fmsHealthMonitorAppId04',
       Status: 2 },
     { Interval: 900,
       IsNodeActive: false,
       LastOccurrence: '2014-11-03T16:34:45Z',
       MonitorType: 1,
       NodeName: 'fmsHealthMonitorAppId03',
       Status: 1 },
     { Interval: 900,
       IsNodeActive: false,
       LastOccurrence: '2014-11-03T16:34:45Z',
       MonitorType: 2,
       NodeName: 'fmsHealthMonitorAppId03',
       Status: 1 },
     { Interval: 900,
       IsNodeActive: false,
       LastOccurrence: '2013-08-30T21:57:58Z',
       MonitorType: 1,
       NodeName: 'fmsHealthMonitorAppId04',
       Status: 1 },
     { Interval: 900,
       IsNodeActive: false,
       LastOccurrence: '2013-08-30T21:57:58Z',
       MonitorType: 2,
       NodeName: 'fmsHealthMonitorAppId04',
       Status: 1 } ] }

如果我这样做了：

var resp = JSON.parse(response.body);
var totalStatuses = Object.keys(resp.Results).length;

totalstatus

包含12个正确的计数

---

现在，我想遍历数据的每个部分，并检查LastOccurrence的值。这让我难以理解。正确的语法应该是什么？

不要麻烦使用

Object.keys

，这只是在您想要获取对象的键时。这里有一个数组。这样，您就可以使用一个简单的

for

循环对其进行迭代

for (var i = 0; i < resp.Results.length; i++) {
  var result = resp.Results[i];
  console.log(result.LastOccurrence);
}

for（var i=0；i

这必须起作用

for(var i = 0; i < totalStatuses ; i += 1){ 
    var obj = resp[i];
    console.log(obj.LastOccurrence);
}

for（var i=0；i

resp.Results

是一个对象数组，但

Object.keys

函数要求其参数为对象
要遍历

相应结果

数组，请执行以下操作：

var results = resp.Results, len = resp.Results.length;
while (len--) {
    console.log(result[len].LastOccurrence);
}

---

完美的迈克！一个后续的。我需要通过调用Date.parse（）将result.LastOccurrence转换为毫秒。我尝试了：var last_time=Date.parse（result.LastOccurrence）；或者将toString（）添加到末尾，但它们都给出了类型错误，表示undefined不是函数。该怎么做？@Bob

Date.parse

会将其转换为毫秒<代码>日期解析（'2016-03-25T21:28:22Z'）==1458941302000。或者，您可以创建一个

Date

对象，然后使用

getTime

<代码>新日期（result.LastOccurrence）.getTime（）。