json转换为map

 // json转换为map
     public static Map parserToMap(String s) {
         Map map = new HashMap();
         JSONObject json = JSONObject.fromObject(s);
         Iterator keys = json.keys();
         while (keys.hasNext()) {
             String key = (String) keys.next();
             String value = json.get(key).toString();
             if (value.startsWith("{") && value.endsWith("}")) {
                 map.put(key, parserToMap(value));
             } else {
                 map.put(key, value);
             }
         }
         return map;
     }