spring boot前后端交互之数据格式转换问题

{
 "id": 0,
  "address_id": 6,
  "detail_address": "我是11251111111",
  "user_id": 611111,
  "create_time": null,
  "update_time": null,
  "name": "测试人11111",
  "phone": "13378954789111"
}

@RequestMapping(value = "/add",method = RequestMethod.POST,produces = "application/json;charset=UTF-8")
 public ResponseData addUsers(@RequestBody UserInfo userInfo){
     if (StringUtils.isNotEmpty(userInfo.getAccount())){
         if (userInfoService.ifUserExist(userInfo.getAccount())){
             return ResponseData.error(500,"账户已存在，请重新设置!");
         }
     }
     System.out.println(userInfo.toString());
}

produces = "application/json;charset=UTF-8"

    @RequestMapping(value = "/fuzzy",method = RequestMethod.POST)
    public ResponseData fuzzyQuery(@RequestParam("carType") Integer carTpe, @RequestParam("carStatus") Integer carStatus, @RequestParam("name") String name, @RequestParam("carNo") String carNo){
        //String name1 = "%"+name+"%";
        List<CarInfo> carInfos = carInfoService.fuzzySelect(carTpe, carStatus, name, carNo);
        return ResponseData.success(carInfos);
    }

    @RequestMapping(value = "/pageList",method = RequestMethod.POST)
    public ResponseData carPageList(CarInfoSelect carInfoSelect){
        IPage<CarInfoResult1> page = carInfoService.carPageList(carInfoSelect);
        //LayuiPageInfo pageInfo = LayuiPageFactory.createPageInfo(page);
        return ResponseData.success(page);
    }