我的问题是如何从设备的api解析json响应。json如下所示。
[{“name”：“device 1”，“label”：“switch state”，“value”：“off”}，{“name”：“device 2”，“label”：“switch state”，“value”：“on”}]

public class Fubar{

public static void main(String[] args) throws Exception {
    boolean a = true;
    while (a) {
        Configuration conf = new Configuration();
        FileSystem hdfs = FileSystem.get(conf);
        String fileName = "filethingy" + "-" + new Date().getTime() + ".txt";

        boolean b = true;
        while(b){
            String connString = "url";
            URL url = new URL(connString);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String inputLine;
            out.writeBytes("TimeStamp"+",");
            out.writeBytes("DeviceName"+",");
            out.writeBytes("DeviceLabel"+",");
            out.writeBytes("DeviceStatus"+",");
            out.writeBytes("\n");
            while ((inputLine = in.readLine()) != null) {
                JSONParser jsonParser = new JSONParser();
                JSONObject jsonObject = (JSONObject) jsonParser.parse(inputLine);

                String date = new java.sql.Timestamp(System.currentTimeMillis()).toString();
                out.write(date.getBytes());
                out.write(",".getBytes());
                out.writeBytes((String) jsonObject.get("name"));
                out.write(",".getBytes());
                out.writeBytes((String) jsonObject.get("label"));
                out.write(",".getBytes());
                out.writeBytes((String) jsonObject.get("value"));
                //out.write(inputLine.getBytes());
                out.write("\n".getBytes());
                out.hflush();
            }

            in.close();
            Thread.sleep(30000);
            out.hflush();

        }
        out.close();
        hdfs.close();
        a=false;
        b=false;
    }

我知道这行不通，因为我无法将jsonarray转换为jsonobject。我很难弄清楚如何正确地分离json来最终构建一个csv，它看起来像timestamp、devicename、devicelabel、devicestatus、01012001、device1、switch status等等。我们完成后，会有人在数据上放一个Hive表。任何帮助都将不胜感激。