安卓将两个JSON数组的值合并到一个JSONObject java中

Question

我有以下形式的JSON数组：

[6, 7, 8, 9, 10, 11]

[122402538, 12240345, 122496, 122617, 1227473, 1228495]

现在我想将每个Long值与另一个值合并，保持其索引不变，如下所示：

[{"id": 6, "timestamp":122402538}, {"id": 7, "timestamp": 12240345}, {"id": , "timestamp": 12240345},...]

我尝试循环，然后将值添加到JSONObject中，如下所示：

JSONArray array = object.getJSONArray("theFirstArray");
for (int i = 0; i < array.length(); i++){
jo = array.getLong(i);
jsonObject.put("id", jo);
jsonArray.put(jsonObject);
}

JSONArray timestamp = object.getJSONArray("theSecondArray");
 for (int i = 0; i < timestamp .length(); i++){
 Long jos = timestamp .getLong(i);
 jsonObject.put("timeStamp", jos);
 jsonArray.put(jsonObject);
}

但是，不幸的是，它是数组中put的最后一个值

如何将两个数组的两个值合并成一个JSONObject，然后列出所有这些JSONObjects

我还研究了其他问题，即使是从phps，javascripts，也没有一个能起到帮助

或者有没有一种方法可以使用RxJava2

感谢您的帮助

Answer 1

试试这个

 JSONArray array1 = object.getJSONArray("theFirstArray");
    JSONArray array2 = object.getJSONArray("thesecondarray");
    JSONObject finalObject=new JSONObject();
    for (int i = 0; i < array1.length(); i++){
        JSONObject jo=new JSONObject();
        jo.put("id",array1.get(i));
        jo.put("timestamp",array2.get(i));
        finalObject.put(jo);
   }

Answer 2

让我们使用RxJava组合这两个数组

JSONArray combinedArray = new JSONArray();


    List<Integer> idList = Arrays.asList(6, 7, 8, 9, 10, 11);
    List<Integer> timestampList = Arrays.asList(122402538, 12240345, 122496, 122617, 1227473, 1228495);

    final int[] counter = {0}; // assuming your both array are of same size.
    Observable.fromIterable(idList)
            .map(id -> {
                        JSONObject singleObject = new JSONObject();
                        singleObject.put("id:", id);
                        singleObject.put("timestamp:", timestampList.get(counter[0]));
                        counter[0]++;
                        combinedArray.put(singleObject);
                        return Observable.just(combinedArray);
                    }
            )
            .toList()  //jsonArrayObservable is observable json array, if you want to your later on
            .doOnSuccess(jsonArrayObservable -> Log.d("jsonArrayObservable -> ", combinedArray.toString()))
            .subscribe();

OUTPUT

 jsonArrayObservable -> :[{"id:":6,"timestamp:":122402538},{"id:":7,"timestamp:":12240345},{"id:":8,"timestamp:":122496},{"id:":9,"timestamp:":122617},{"id:":10,"timestamp:":1227473},{"id:":11,"timestamp:":1228495}]

不支持java 8的更新

Observable.fromIterable(idList)
            .map(new Function<Integer, Object>() {
                     @Override
                     public Object apply(Integer id) throws Exception {
                         JSONObject singleObject = new JSONObject();
                         singleObject.put("id:", id);
                         singleObject.put("timestamp:", timestampList.get(counter[0]));
                         counter[0]++;
                         combinedArray.put(singleObject);
                         return Observable.just(combinedArray);
                     }
                 }
            )
            .toList()  //jsonArrayObservable is observable json array, if you want to your later on
            .doOnSuccess(jsonArrayObservable -> Log.d("jsonArrayObservable -> ", combinedArray.toString()))
            .subscribe();

Output