Json转Map

      public static Map<String, Object> getJson(String str) {        Map<String, Object> map = new HashMap<String, Object>();        ObjectMapper mapper = new ObjectMapper();        try {            map = mapper.readValue(str, new TypeReference<HashMap<String, Object>>() {            });            logger.info("最后返回的结果是:" + map);        } catch (Exception e) {            e.printStackTrace();        }        return map;    }