The use alibaba json tool type String type into JSONArray

The conversion process: first input stream into String type, re-use of json alibaba conversion tool string into the array json

        SensorDevices sensorDevices = new SensorDevices();
        request.setCharacterEncoding("utf-8");
        JSONObject json = new JSONObject();
        JSONArray list = new JSONArray();
        BufferedReader br;
        String line = null;
        String brStr = null;
        String jsonStr = null;
        String jsonStr2 = null;
        try {
            br = new BufferedReader(new InputStreamReader((ServletInputStream) request.getInputStream()));
            StringBuilder sb = new StringBuilder();

//            line = br.readLine();
            while ((line = br.readLine()) != null) {
                sb.append(line);
                brStr = sb.toString();
            }
            list = JSONArray.parseArray(brStr);
        } catch (IOException e) {
            e.printStackTrace();
        }
//        System.out.println("+++++++++这是brStr：" + brStr);
//         System.out.println ( "+++++++++ This is JSON:" + json);
         //   iterate json array 
        System.out.println ( "+++++++++ This is JSONArray: "+ list);