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public class AthleteService {

    private ObjectMapper mapper = new ObjectMapper();
    private File jsonFile = new File("jsondatabase/result.json");
    private List<Athlete> resultList = new ArrayList<>();

    @ModelAttribute("results")
    public List<Athlete> findResultByEventId(Integer id) {
        try {
            JsonNode root = mapper.readTree(jsonFile);
            JsonNode results = root.get("event_" + id);
                for (JsonNode resultNode : results.get("results")) {
                    Athlete athlete = new Athlete(resultNode.get("rank").asInt(), resultNode.get("country").asText(),
                            resultNode.get("athlete").asText(), resultNode.get("result").asInt(),
                            resultNode.get("points").asInt());
                    resultList.add(athlete);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return resultList;
    }

@Controller
public class PageController {
    @Autowired
    private AthleteService athleteService;

    @RequestMapping(value = "/result/{id}", method = RequestMethod.GET)
    public String resultPage(@PathVariable("id") Integer id, Model model){
        model.addAttribute("results", athleteService.findResultByEventId(id));
        return "result";
    }
    }

<body>
<div th:if="${not #lists.isEmpty(results)}">
    <h2 th:text="${event}"> </h2>
<table class="table-striped">
    <thead>
    <tr style="background-color: lightgrey">
        <th>Rank</th>
        <th>Country</th>
        <th>Athlete</th>
        <th>Time</th>
        <th>Points</th>
    </tr>
    </thead>
    <tbody>
    <tr th:each="result: ${results}">
        <td th:value="${result.rank}">Rank</td>
        <td th:text="${result.country}">Country</td>
        <td th:text="${result.athlete}">Athlete</td>
        <td th:value="${result.time}">Time</td>
        <td th:value="${result.points}">Points</td>
    </tr>
    </tbody>
</table>
</div>
</body>