Как обновить запись в приложении весенней загрузки? ⇐ JAVA

[Anonymous]

Я пытаюсь обновить запись в приложении весенней загрузки, но вместо обновления добавляется новая запись, и я также хочу выполнить поиск
import java.sql.Timestamp;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.Transient;

@Entity

public class Events {

private Long id;

private String game;

private String catergory;

private String venue;

private float entrance_fee;

private String date;

private String time;

private Timestamp created_time;

private String image;

public Events() {

super();

// TODO Auto-generated constructor stub
}

@Id

@GeneratedValue(strategy = GenerationType.IDENTITY)

public Long getId() {

return id;
}

public void setId(Long id) {

this.id = id;
}

public String getGame() {

return game;
}

public void setGame(String game) {

this.game = game;
}

public String getCatergory() {

return catergory;
}

public void setCatergory(String catergory) {

this.catergory = catergory;
}

public String getVenue() {

return venue;
}

public void setVenue(String venue) {

this.venue = venue;
}

public float getEntrance_fee() {

return entrance_fee;
}

public void setEntrance_fee(float entrance_fee) {

this.entrance_fee = entrance_fee;
}

public String getDate() {

return date;
}

public void setDate(String date) {

this.date = date;
}

public String getTime() {

return time;
}

public void setTime(String time) {

this.time = time;
}

public Timestamp getCreated_time() {

return created_time;
}

public void setCreated_time(Timestamp created_time) {

this.created_time = created_time;
}

public String getImage() {

return image;
}

public void setImage(String image) {

this.image = image;
}

@Transient

public String getImagePath() {

if(image == null || id == null) return null;

return "/event-images/" + id + "/" + image;
}

}

это мой репозиторий...
import java.util.List;

import org.springframework.data.repository.PagingAndSortingRepository;

import org.springframework.stereotype.Repository;

@Repository

public interface EventsRepository extends PagingAndSortingRepository {

List findByCatergoryLike(String catergory);

}

это моя услуга..
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.domain.Page;

import org.springframework.data.domain.PageRequest;

import org.springframework.data.domain.Pageable;

import org.springframework.data.domain.Sort;

import org.springframework.stereotype.Service;

@Service

public class EventsService {

@Autowired

private EventsRepository eventsRepository;

public Page listAll(int pageNumber){

Sort sort = Sort.by("date").ascending();

Pageable pageable = PageRequest.of(pageNumber -1, 1, sort);

return eventsRepository.findAll(pageable);
}

public Events save(Events events) {

return eventsRepository.save(events);
}

public void update(Events events) {

eventsRepository.save(events);
}

public Events get(Long id) {

return eventsRepository.findById(id).get();
}

public void delete(Long id) {

eventsRepository.deleteById(id);
}

public List findBycatergory(String catergory) {

return eventsRepository.findByCatergoryLike("%"+catergory+"%");
}

}

это метод обновления в контроллере.
@RequestMapping(value = { "/update_event" }, method = RequestMethod.POST)

public String upadate(@ModelAttribute("events") @PathVariable(name="id") Long id, Events events,

@RequestParam("fileImage") MultipartFile multipartFile) throws IOException {

String fileName = StringUtils.cleanPath(multipartFile.getOriginalFilename());

events.setImage(fileName);

eventsService.update(events);

String uploadDir = "./event-images/" + events.getId();

Path uploadPath = Paths.get(uploadDir);

if(!Files.exists(uploadPath)) {

Files.createDirectories(uploadPath);
}

try (InputStream inputStream = multipartFile.getInputStream()){

Path filePath = uploadPath.resolve(fileName);

Files.copy(inputStream, filePath, StandardCopyOption.REPLACE_EXISTING);

}catch (IOException e) {

throw new IOException("Could not save uploaded file: " + fileName);
}

if(fileName.length()>1048576) {

System.out.println("file too large");
}
return "redirect:/events";

}

и, наконец, форма обновления.


Sports





Venue



Entrance Fee



Date & Time







SAVE CHANGES..DISCARD..




Подробнее здесь: https://stackoverflow.com/questions/627 ... pplication