남자! 복합 형 목록으로 엔티티를 어떻게 저장할 수 있습니까? 예를 들어 다음과 같습니다.스프링 양식 persist 복합 개체 목록
@Entity
@Table(name = "distributor")
public class Distributor {
@Id
@GeneratedValue(strategy= GenerationType.IDENTITY)
@Column(name = "id")
private Long id;
@Column(name = "name")
private String name;
@Column(name = "city")
private String city;
@Column(name = "address")
private String address;
@OneToMany(cascade = CascadeType.ALL)
List<Exhibitor> exhibitor = new ArrayList<Exhibitor>();
@OneToMany(cascade = CascadeType.ALL)
List<Merchandiser> merchandiser = new ArrayList<Merchandiser>();
.getter 및 setters.
제출 컨트롤러 : 업데이트가 엔티티 (머천다이저 또는 전시 또는 대리점이 업데이트 될 때)마다입니다
@RequestMapping(value = "submission", method = RequestMethod.GET)
public String showSubmission(Model model) {
Query Exhibitor = sessionFactory.getCurrentSession().createQuery("from Exhibitor");
List<Merchandiser> listExhibitor = Exhibitor.getResultList();
model.addAttribute("listOfExhibitors", listExhibitor);
Query Merchandisers = sessionFactory.getCurrentSession().createQuery("from Merchandiser");
List<Merchandiser> listMerchandisers = Merchandisers.getResultList();
model.addAttribute("listMerchandisers", listMerchandisers);
Query query = sessionFactory.getCurrentSession().createQuery("from Distributor");
List<Distributor> listDistributors = query.getResultList();
model.addAttribute("listDistributors", listDistributors);
model.addAttribute("submission", new Distributor());
return "submission";
}
@RequestMapping(value = "submission", method = RequestMethod.POST)
public String show(Model model, @ModelAttribute("submission") Distributor submission, BindingResult error) {
sessionFactory.getCurrentSession().save(submission);
/*Distributor distributor = sessionFactory.getCurrentSession().get(Distributor.class, 1L);*/
return "redirect:submission";
}
및 JSP는 JSP는 지금 노력하고 있습니다 만, 내가 어떻게 업데이트 (또는)를 넣어 수 있습니다 in 출품자 목록 표시 = new ArrayList();은 JSP 양식에서 신청 : 그것은 List<Exhibitor> listExhibitor = Exhibitor.getResultList();
해야
<form:select path="name">
<c:forEach var="distributor" items="${listDistributors}" >
<form:option value="${distributor.id}">${distributor.name}</form:option>
</c:forEach>
</form:select>
<form:select path="exhibitor">
<c:forEach var="exhibitors" items="${listOfExhibitors}" >
<form:option value="${exhibitors.id}">${exhibitors.name}</form:option>
</c:forEach>
</form:select>
<input type="submit" value="Submission" />
</form:form>