英文:
Getting a JSON Array from JSON Object (SOLVED)
问题
第一次自己处理JSON数据，即使非常简单。
这是我正在处理的JSON数据：
{
"heart": [92, 108],
"temperature": [85.08, 85.66],
"conductance": [4095, 4095]
}
我试图做的是从该JSON对象中提取三个数组中的一个，但我收到了一个JSONException: Not a primitive array: class org.json.JSONArray。以下是我用于提取与“heart”相关的值数组的代码部分：
JSONObject obj = new JSONObject(obtainJSONObject());
JSONArray arr = new JSONArray(obj.getJSONArray("heart")); // 这是发生错误的地方
int low = arr.getInt(0);
int high = arr.getInt(1);
我尝试过按照这个解决方案的回答进行操作，但无法理解太多：https://stackoverflow.com/questions/32624166/how-to-get-json-array-within-json-object/32624372
我不确定是否与JSON数据的格式有关。我在https://jsonformatter.curiousconcept.com/上检查过它是否有效。任何帮助或见解将不胜感激！
英文:
First time having to work with JSON data on my own, even if very simple.
Here is the JSON data I'm working with:
{
"heart" : [92, 108],
"temperature" : [85.08, 85.66],
"conductance" : [4095, 4095]
}
What I'm attempting to do is extract one of the three arrays found within that JSON object, but I'm receiving a JSONException: Not a primitive array: class org.json.JSONArray. Here is a portion of the code that I'm using to extract the array of values associated with "heart":
JSONObject obj = new JSONObject(obtainJSONObject());
JSONArray arr = new JSONArray(obj.getJSONArray("heart")); // This is where the error is occuring
int low = arr.getInt(0);
int high = arr.getInt(1);
I've tried to follow what this solution answered, but can't really make much sense of it: https://stackoverflow.com/questions/32624166/how-to-get-json-array-within-json-object/32624372
I'm not sure if it has something to do with the way how the JSON data is being formatted? I did check online to see if it was any valid or not at https://jsonformatter.curiousconcept.com/. Any help or insights will be greatly appreciated!
专注分享java语言的经验与见解，让所有开发者获益！
评论