ASP JSON：对象不是一个集合

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问题描述

我应该如何从这个JSON检索PitcherID？我使用的类。

JSON

  [
 {
  PitcherID：456068
 }，
 {
  PitcherID：431148
 }
]

code

  oJSON.loadJSON（...）对于每一个东西在oJSON.data（PitcherID）
    设置此= oJSON.data（PitcherID）。项目（事）
    RESPONSE.WRITE this.item（PitcherID）
下一个

错误

  Microsoft VBScript运行时错误'800a01c3对象不是一个集合

解决方案

问题是从

How should I retrieve PitcherID from this JSON? I am using the class from http://aspjson.com.

JSON

[
 {
  "PitcherID": "456068"
 },
 {
  "PitcherID": "431148"
 }
]

Code

oJSON.loadJSON("...")

For Each thing In oJSON.data("PitcherID")
    Set this = oJSON.data("PitcherID").item(thing)
    response.write this.item("PitcherID")
Next

Error

Microsoft VBScript runtime error '800a01c3'

Object not a collection

解决方案

The problem is the class from http://aspjson.com is limited and personally I've always found it hard to find decent examples of how to use it.

Why do you get the `Object not a collection` error?

It's quite simple really the object you are trying to iterate through like an array / collection is not one.

This line

For Each thing In oJSON.data("PitcherID")

will fail because oJSON.data("PitcherID") is not a collection object which means you cannot iterate through it. For PitcherID to be enumerable the source JSON structure would look more like this

{
  "PitcherID": [
    "456068",
    "431148"
  ]
}

for example.

PitcherID