arrays - 如何使用 aspjson 和经典 asp 迭代 json 数组？

Question

在http://www.aspjson.com/的帮助下我已经走到了这一步。和 Looping through JSON Array using ASPJSON

<!--#include file="aspjson.asp" -->

jsonstring = "{""events"":""[{
""email"":""<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5d373235331d29382e29733e3230" rel="noreferrer noopener nofollow">[email protected]</a>"",
""timestamp"":1461015166,
""smtp-id"":""\u003c14c5d75ce93.dfd.64b469@ismtpd-555\u003e"",
""event"":""processed"",
""category"":""cat facts"",
""sg_event_id"":""Y4SkYnMgWCH-j0Ap2HUBlg=="",
""sg_message_id"":""14c5d75ce93.dfd.64b469.filter0001.16648.5515E0B88.0""
},
{
"email"":""<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="72170a131f021e1732061701065c111d1f" rel="noreferrer noopener nofollow">[email protected]</a>"",
""timestamp"":1461015166,
""smtp-id"":""\u003c14c5d75ce93.dfd.64b469@ismtpd-555\u003e"",
""event"":""deferred"",
""category"":""cat facts"",
""sg_event_id"":""QVvoFUd9LS5083KTavaqAw=="",
""sg_message_id"":""14c5d75ce93.dfd.64b469.filter0001.16648.5515E0B88.0"",
""response"":""400 try again later"",""attempt"":""5""
},
{
""email"":""<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c3a9acabad83b7a6b0b7eda0acae" rel="noreferrer noopener nofollow">[email protected]</a>"",
""timestamp"":1461015166,
""smtp-id"":""\u003c14c5d75ce93.dfd.64b469@ismtpd-555\u003e"",
""event"":""processed"",
""category"":[""Cat Facts"",""Fish Facts""],
""sg_event_id"":""Y4SkYnMgWCH-j0Ap2HUBlg=="",
""sg_message_id"":""14c5d75ce93.dfd.64b469.filter0001.16648.5515E0B88.0""
}]""}"


Set jJSON = New aspJSON
jJSON.loadJSON(jsonstring)

For Each son In jJSON.data("events")
For Each grandson In jJSON.data("events").item(son)
    response.write "<b>" & grandson & ": </b>" & jJSON.data("events").item(son).item(grandson) & "<br>"
Next
response.write "<br>"
Next

我发现的大多数示例都有键的名称，但我并不总是知道它们是什么。

当我的循环到达类别包含两个元素的最后一个集合时，我的问题就出现了。 “猫的事实”和“鱼的事实”。

错误信息是: Microsoft VBScript 运行时错误“800a01c2” 参数数量错误或属性分配无效

如果我能让这个工作正常，这将是朝着正确方向迈出的一步，但“类别”可以是另一条记录中的任何名称，并且可以有单个或多个值。

我想我需要添加一个 if/then 但我被困在这里。我想我想做这样的伪代码

if isarray(grandson) then
for each greatgrandson in grandson
    response.write greatgrandson
else
    response.write "<b>" & grandson & ": </b>" & jJSON.data("events").item(son).item(grandson) & "<br>"
end if

我确信我仍然在努力解决所有这些如何组合在一起的问题，因此如果有人有任何可能有帮助的指示或描述链接，我们将不胜感激。

Answer 1

您可以检查孙子是否是一个对象，以及它是否循环显示:

For Each son In jJSON.data("events")
For Each grandson In jJSON.data("events").item(son)
    response.write "<b>" & grandson & ": </b>"
    if NOT isObject(jJSON.data("events").item(son).item(grandson)) then
        response.write jJSON.data("events").item(son).item(grandson) 
    else
        for each category in jJSON.data("events").item(son).item(grandson)
            Response.write jJSON.data("events").item(son).item(grandson)(category) & ","
        next
    end if
    Response.write "<br>"
Next
response.write "<br>"
Next