Java中对JSONArray中的对象进行排序

String jsonArrStr = "[ { \"ID\": \"135\", \"Name\": \"Fargo Chan\" },{ \"ID\": \"432\", \"Name\": \"Aaron Luke\" },{ \"ID\": \"252\", \"Name\": \"Dilip Singh\" }]";

JSONArray jsonArr =JSONObject.parseArray(jsonArrStr);
        JSONArray sortedJsonArray = new JSONArray();

        List jsonValues = new ArrayList();
        for (int i = 0; i < jsonArr.size(); i++) {
            jsonValues.add(jsonArr.getJSONObject(i));
        }
        Collections.sort( jsonValues, new Comparator() {
            //You can change "Name" with "ID" if you want to sort by ID
            private static final String KEY_NAME = "ID";

            @Override
            public int compare(JSONObject a, JSONObject b) {
                String valA = new String();
                String valB = new String();

                try {
                    valA = (String) a.get(KEY_NAME);
                    valB = (String) b.get(KEY_NAME);
                }
                catch (JSONException e) {
                    //do something
                }

                return  valB.compareTo(valA);
                //if you want to change the sort order, simply use the following:
                //return -valA.compareTo(valB);
            }
        });

        for (int i = 0; i < jsonArr.size(); i++) {
            sortedJsonArray.add(jsonValues.get(i));
        }

　　

转载于:https://www.cnblogs.com/ampl/p/11377667.html