请教json过滤问题

springboot项目，采用layui框架，因此需要传入json。但是我发现json里包含了一串不明意义不明出处的重复字节，和jdbctemlate有关，请教如何过滤掉。

获取json代码：

public List<Talent> getAllTalents() {
        if (talentList.size() !=0)
        talentList.clear();//初始化避免重复存储
        String sql = "select * from candidate";
        String countsql = "select count(*) from candidate";
        int count = jdbcTemplate.queryForObject(countsql, Integer.class);
        List<Map<String, Object>> list_maps = jdbcTemplate.queryForList(sql);
        for (int i = 0; i < count; i++) {
            talentList.add(new Talent((int) list_maps.get(i).get("id"), (String) list_maps.get(i).get("chineseName"), (String) list_maps.get(i).get("englishName"), (String) list_maps.get(i).get("mobile"), (String) list_maps.get(i).get("email"), (boolean) list_maps.get(i).get("gender"), (String) list_maps.get(i).get("mobile_city"), (String) list_maps.get(i).get("title")));
        }
        return talentList;
    }

后台JSON数据：

{
  "code": 0,
  "msg": "查询成功",
  "count": 20,
  "data": [
    {
      "jdbcTemplate": {
        "dataSource": null,
        "exceptionTranslator": {
          "fallbackTranslator": null
        },
        "lazyInit": true,
        "ignoreWarnings": true,
        "fetchSize": -1,
        "maxRows": -1,
        "queryTimeout": -1,
        "skipResultsProcessing": false,
        "skipUndeclaredResults": false,
        "resultsMapCaseInsensitive": false
      },
      "id": 505,
      "chineseName": "蒋X",
      "englishName": null,
      "mobile": "XXXXXXX",
      "email": "XXX",
      "gender": true,
      "city": "",
      "title": "亚太地区XXX"
    },
    {
      "jdbcTemplate": {
        "dataSource": null,
        "exceptionTranslator": {
          "fallbackTranslator": null
        },
        "lazyInit": true,
        "ignoreWarnings": true,
        "fetchSize": -1,
        "maxRows": -1,
        "queryTimeout": -1,
        "skipResultsProcessing": false,
        "skipUndeclaredResults": false,
        "resultsMapCaseInsensitive": false
      },
      "id": 506,
      "chineseName": "XXX",
      "englishName": null,
      "mobile": "XXX",
      "email": "XXX",
      "gender": false,
      "city": "",
      "title": null
    }
  ]
}

可以采用正则表达式将对应的数据过滤掉

jackson的话，bean直接不要的属性加JsonIgnore