在Excel VBA代码中处理XMLHttp响应中的JSON对象 [英] Handle JSON Object in XMLHttp response in Excel VBA Code

问题描述

我需要处理JSON对象，这是Excel VBA中XMLHTTPRequest的响应。我写下面的代码，但没有成功。请指导我

I am need of handling JSON Object which is the response of XMLHTTPRequest in Excel VBA. I wrote below code but not succeeded. Please guide me.

  Dim sc As Object
  Set sc = CreateObject("ScriptControl")
  sc.Language = "JScript"

  Dim strURL As String: strURL = "blah blah"

  Dim strRequest
  Dim XMLhttp: Set XMLhttp = CreateObject("msxml2.xmlhttp")
  Dim response As String

  XMLhttp.Open "POST", strURL, False
  XMLhttp.setrequestheader "Content-Type", "application/x-www-form-urlencoded"
  XMLhttp.send strRequest
  response = XMLhttp.responseText
  sc.Eval ("JSON.parse('" + response + "')")

我收到错误运行时错误'429'ActiveX组件无法在行<$ c中创建对象 $ c> Set sc = CreateObject（ScriptControl）

I am getting the error Run-time error '429' ActiveX component can't create object in the line Set sc = CreateObject("ScriptControl")

而且，一旦我们解析了JOSN对象，如何访问JSON的值对象？

And, Once we parsed the JOSN Object, how to access the values of JSON Object?

PS我的JSON对象示例： {成功：true，消息：Blah blah}

P.S. My JSON Object sample: {"Success":true,"Message":"Blah blah"}

推荐答案

该代码获取nseindia站点中的数据，该数据作为 responseDiv 元素中的JSON字符串。

The code gets the data from nseindia site which comes as a JSON string in responseDiv element.

必需参考

3类模块我已经使用

• cJSONScript


• cStringBuilder


• JSON

（我从 here ）

您可以从这个链接

标准模块

Const URl As String = "http://www.nseindia.com/live_market/dynaContent/live_watch/get_quote/GetQuote.jsp?symbol=ICICIBANK"
Sub xmlHttp()

    Dim xmlHttp As Object
    Set xmlHttp = CreateObject("MSXML2.ServerXMLHTTP.6.0")
    xmlHttp.Open "GET", URl & "&rnd=" & WorksheetFunction.RandBetween(1, 99), False
    xmlHttp.setRequestHeader "Content-Type", "text/xml"
    xmlHttp.send

    Dim html As MSHTML.HTMLDocument
    Set html = New MSHTML.HTMLDocument
    html.body.innerHTML = xmlHttp.ResponseText

    Dim divData As Object
    Set divData = html.getElementById("responseDiv")
    '?divData.innerHTML
    ' Here you will get a string which is a JSON data

    Dim strDiv As String, startVal As Long, endVal As Long
    strDiv = divData.innerHTML
    startVal = InStr(1, strDiv, "data", vbTextCompare)
    endVal = InStr(startVal, strDiv, "]", vbTextCompare)
    strDiv = "{" & Mid(strDiv, startVal - 1, (endVal - startVal) + 2) & "}"


    Dim JSON As New JSON

    Dim p As Object
    Set p = JSON.parse(strDiv)

    i = 1
    For Each item In p("data")(1)
       Cells(i, 1) = item
       Cells(i, 2) = p("data")(1)(item)
        i = i + 1
    Next

 End Sub

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