Question

我有一个API调用，它以以下格式返回数据：

[
  {
    "children": null,
    "entityDefinition": {
      "id": 0,
      "version": 0,
      "entityType": "APPLICATION_COMPONENT_NODE",
      "entityId": 8280,
      "prettyToString": null
    },
    "state": "NORMAL",
    "nodesPerformanceStateSummary": null,
    "appServerAgentAvailability": {
      "entityId": 8280,
      "entityType": "APPLICATION_COMPONENT_NODE",
      "latest": true,
      "percentage": 100,
      "metricId": 41540
    },
    "machineAgentAvailability": {
      "entityId": 8280,
      "entityType": "APPLICATION_COMPONENT_NODE",
      "latest": true,
      "percentage": 100,
      "metricId": 41548
    }
  }
],
[
  {
    "children": null,
    "entityDefinition": {
      "id": 0,
      "version": 0,
      "entityType": "APPLICATION_COMPONENT_NODE",
      "entityId": 20552,
      "prettyToString": null
    },
    "state": "NORMAL",
    "nodesPerformanceStateSummary": null,
    "appServerAgentAvailability": {
      "entityId": 20552,
      "entityType": "APPLICATION_COMPONENT_NODE",
      "latest": false,
      "percentage": 0,
      "metricId": 41540
    },
    "machineAgentAvailability": {
      "entityId": 20552,
      "entityType": "APPLICATION_COMPONENT_NODE",
      "latest": true,
      "percentage": 100,
      "metricId": 41548
    }
  }
]

当我尝试执行时

JSON.parse(myData).forEach(function(node){
    sails.log.info(node.id);
}

它给了我以下错误：

SyntaxError: Unexpected token , in JSON at position 468
    at JSON.parse (<anonymous>)
    at getListOfAvailableNodes (C:\Users\taaniel.paal\Documents\license-statistics\api\helpers\get-licenses.js:73:14)
    at Request._callback (C:\Users\taaniel.paal\Documents\license-statistics\api\helpers\get-licenses.js:136:30)
    at Request.self.callback (C:\Users\taaniel.paal\Documents\license-statistics\node_modules\request\request.js:185:22)
    at Request.emit (events.js:182:13)
    at Request.EventEmitter.emit (domain.js:442:20)
    at Request.<anonymous> (C:\Users\taaniel.paal\Documents\license-statistics\node_modules\request\request.js:1161:10)
    at Request.emit (events.js:182:13)
    at Request.EventEmitter.emit (domain.js:442:20)
    at IncomingMessage.<anonymous> (C:\Users\taaniel.paal\Documents\license-statistics\node_modules\request\request.js:1083:12)
    at Object.onceWrapper (events.js:273:13)
    at IncomingMessage.emit (events.js:187:15)
    at IncomingMessage.EventEmitter.emit (domain.js:442:20)
    at endReadableNT (_stream_readable.js:1090:12)
    at process._tickCallback (internal/process/next_tick.js:63:19)

当数组只有一个元素但有更多元素时，它会失败。也许有人知道解决方法吗？我的意思是，JSON.parse（）应该识别数组类型的数据，或者是没有根元素包含此数组的问题，例如{“节点”：[“ x”，“ x”，“ x”]}？我有点困惑，很想从一个聪明的人那里获得一些见识：）

谢谢。

Answer 1

这是无效的JSON，您有两个根数组元素。服务器响应必须是固定的。目前，您有类似的内容：

[
"first"
],
[
"second"
]

应该是：

["first", "second"]

JSON.parse（myArray）失败

1 个答案: