大家好，项目中有处理很多比较复杂的json数据，例如:
{ "resultSuccess": true, "data": { "goodsInfo": { "argument": "处理器@#&显卡@#&硬盘", "path_name": "../images/goods/2017-08-01/20170801144513782246.jpg", "bg_name": "经典台式", "bg_id": "2" }, "gaList": [{ "path_name": "../images/goods/2017-07-25/20170725101722818254.jpg" }, { "path_name": "../images/goods/2017-08-01/20170801144513782246.jpg" }], "argumentStrList": [{ "argument": "I5@#&750@#&500G", "id": "12", "price": "3500.00", "promotionPrice": "3010.00" }], "arMap": { "显卡": { "1050": "3500.00", "1080": "4000.00", "750": "2950.00" }, "处理器": { "I3": "2950.00", "I7": "4000.00", "I5": "3500.00" }, "硬盘": { "500G": "2950.00", "1T": "4000.00" } } }, "resultCode": "CLS001", "state": "01", "resultDesc": "数据操作成功", "bgId": "2" }
我们单来看这个arMap，因为相对来说这个地方是比较复杂的，Map套Map，外层还是一个List，我是这样解析的：
try { //将json转化为一个对象 JSONObject jsonObject = new JSONObject(response); //通过data字眼拿到data这个对象 JSONObject dataOb = (JSONObject) jsonObject.get("data"); //通过arMap字眼拿到arMap对象 JSONObject arMapObj = (JSONObject) dataOb.get("arMap"); arMap = arMapObj.toString(); } catch (JSONException e) { e.printStackTrace(); } //Gson解析arMap，我这里用的treeMap，主要是因为，解析得到的数据是乱序的，这里是为了排序 TreeMap<String, TreeMap<String, String>> arMaps = new Gson().fromJson(arMap, new TypeToken<TreeMap<String, TreeMap<String, String>>>() { }.getType()); //这样我们就得到了这个Map套Map的一个较为复杂的对象 //然后我们可以循环遍历拿到其中的key和value // List<String> arMapsKey = new ArrayList<String>(); List<TreeMap<String, String>> valueList = new ArrayList<TreeMap<String, String>>(); for (String pKey : arMaps.keySet()) { arMapsKey.add(pKey); if (arMapsKey.size() == 1) { } else if (arMapsKey.size() == 2) { } else if (arMapsKey.size() == 3) { } } for (TreeMap<String, String> pValue : arMaps.values()) { valueList.add(pValue); } if (valueList.size() == 2) { for (String cCkey : valueList.get(0).keySet()) { } for (String cSkey : valueList.get(1).keySet()) { } } else if (valueList.size() == 1) { for (String cCkey : valueList.get(0).keySet()) { } } else if (valueList.size() == 3) { for (String cCkey : valueList.get(0).keySet()) { } for (String cSkey : valueList.get(1).keySet()) { } for (String cSkey : valueList.get(2).keySet()) { } } else { return; }