确定 JSON 是 JSONObject 还是 JSONArray

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2022-01-01

Determine whether JSON is a JSONObject or JSONArray(确定 JSON 是 JSONObject 还是 JSONArray)

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问题描述

I am going to receive either a JSON Object or Array from server, but I have no idea which it will be. I need to work with the JSON, but to do so, I need to know if it is an Object or an Array.

I am working with Android.

Does any one have a good way of doing this?

解决方案

I found better way to determine:

String data = "{ ... }";
Object json = new JSONTokener(data).nextValue();
if (json instanceof JSONObject)
  //you have an object
else if (json instanceof JSONArray)
  //you have an array

tokenizer is able to return more types: http://developer.android.com/reference/org/json/JSONTokener.html#nextValue()

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