getJSONObject错误：JSONObject [“…”]不是JSONObject

Question

I'm trying to parse a JSON string, but getting an error when trying to get a nested object:

JSONObject jsonObject = new JSONObject(jsonString);

System.out.println(jsonObject);
System.out.println(jsonObject.keySet());
System.out.println(jsonObject.getJSONObject("matches"));

Below is the output in console. As far as I can see, the JSON is valid as jsonObject is created without an error. But when I try to obtain "matches" it throws an error. I've compared my code with tutorials but I can't see what the issue out to be:

{"matches":[{"id":233028,"awayTeam":{...

[matches, count, filters, competition]

Error in client: JSONObject["matches"] is not a JSONObject.

Anything I'm doing wrong? Happy to provide any further info if needed.

Answer 1

matches is an array , not an object. Use getJSONArray :

System.out.println(jsonObject.getJSONArray("matches"));

(Or more usefully:

System.out.println(Arrays.deepToString(jsonObject.getJSONArray("matches")));

since System.out.println on an array doesn't really show useful information on its own.)