如何解析JSONObject与其中的其他JSONObject？

Question

I have a question about getting jsonobjects out of a jsonobject.

This is what im getting back:

{
"data": {
    "someid": {
        "air_by_date": 0, 
        "cache": {
            "banner": 1, 
            "poster": 1
        }, 
        "language": "en", 
        "network": "somenetwork", 
        "next_ep_airdate": "somedate", 
        "paused": 0, 
        "quality": "somequality", 
        "show_name": "somename", 
        "status": "Continuing", 
        "tvdbid": someid, 
        "tvrage_id": someid, 
        "tvrage_name": "Showname"
    }, 
    "someid": {
        "air_by_date": 0, 
        "cache": {
            "banner": 1, 
            "poster": 1
        }, 
        "language": "en", 
        "network": "somenetwork", 
        "next_ep_airdate": "", 
        "paused": 0, 
        "quality": "somequality", 
        "show_name": "somename", 
        "status": "Continuing", 
        "tvdbid": someid, 
        "tvrage_id": someid, 
        "tvrage_name": "somename"
    }, 

But how am i supposed to create "ShowObjects" of them. I know how it works with JSONArrays but i have never done this kind of JSON before.

This is what i got untill now:

String json = download(url);

JSONObject result = new JSONObject(json);
JSONObject resultData = result.getJSONObject("data");

Answer 1

Copied from this answer :

Use the keys() iterator to iterate over all the properties, and call get() for each.

Iterator<String> iter = json.keys();
while (iter.hasNext()) {
    String key = iter.next();
    try {
        Object value = json.get(key);
    } catch (JSONException e) {
        // Something went wrong!
    }
}

Answer 2

Try using Jackson or Gson for these tasks.

With Jackson you would do something like this:

class Response() {
     public String message;
     public String result;
     public Map<String, Object> data; 
}

ObjectMapper mapper = new ObjectMapper()
Resonse respone = mapper.readValue(json, Response.class)

or use a custom deserializer to read those values out.

Answer 3

I will give you an example how to fetch the objects and vars in your "data" json:

lets say the second "someid" is : "123". We will fetch the second jsonObject now :

JSONObject secondJsonSomeId = resultData.getJsonObject("123"); 

Now we will fetch the "banner" ( int =1 ) of the jsonObject named "cache" located in our secondJsonSomeId :

int bannerInsecondJsonSomeId = secondJsonSomeId.getJsonObject("cache").getInt("banner");// bannerInsecondJsonSomeId == 1

the code is not compiled so there might be errors , ask if you have additional questions.