Android 获取json 里面 属性名 ，和值

?xml version="1.0" encoding="UTF-8"?

String robotJson="{\"tcp post\":{\"x\":\"1\",\"y\":\"2\",\"z\":\"3\"},\"joint value\":{\"j1\":\"3\",\"j2\":\"4\",\"j3\":\"5\"}}";

Map retMap =newGson().fromJson(robotJson,

       newTypeToken>() {

        }.getType());

for(String p : retMap.keySet()) {

    System.out.println("key:"+ p +" values:"+ retMap.get(p));

    Object o=retMap.get(p);

    String json=newGson().toJson(o);

   try{

        JSONObject customJson =newJSONObject(json);

        System.out.println(customJson.names());

        List list=newGson().fromJson(customJson.names().toString(),newTypeToken>(){}.getType());

       for(String s : list){

            System.out.println(s);

            System.out.println(customJson.get(s));

        }

    }catch(JSONException e) {

        e.printStackTrace();

    }

}

System.out.println(retMap);