java - hibernate : org. hibernate .QueryException

Question

我有一个 org.hibernate.QueryException，我很难理解为什么。

hibernate 未解析的属性 langue_id 在我的实体 Conditionnement 中定义。

堆栈跟踪

Caused by: org.hibernate.QueryException: could not resolve property: langue_id of: fr.sita.g2fm.domain.referentiel.Conditionnement
    at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:62) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:56) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.persister.entity.AbstractEntityPersister.toType(AbstractEntityPersister.java:1805) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.loader.criteria.EntityCriteriaInfoProvider.getType(EntityCriteriaInfoProvider.java:39) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.loader.criteria.CriteriaQueryTranslator.getPathInfo(CriteriaQueryTranslator.java:228) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.loader.criteria.CriteriaQueryTranslator.createCriteriaEntityNameMap(CriteriaQueryTranslator.java:212) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.loader.criteria.CriteriaQueryTranslator.<init>(CriteriaQueryTranslator.java:94) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.loader.criteria.CriteriaLoader.<init>(CriteriaLoader.java:71) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1760) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
    at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:363) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]

实体

@Entity
@Data
@Table(uniqueConstraints = @UniqueConstraint(name = "UNIQUE_CONDITIONNEMENT_DESIGNATION", columnNames = {
        "designation"}))
public class Conditionnement implements IdObject, Serializable {
  private static final long serialVersionUID = 7096113289274101792L;

  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  private Long id;

  private Long codeConditionnement;

  @NotNull(message = ERROR_CODE_MANDATORY_FIELD)
  private String designation;

  @ManyToOne(fetch = FetchType.LAZY)
  @JoinColumn(name = "langue_id")
  @NotNull(message = ERROR_CODE_MANDATORY_FIELD)
  @ForeignKey(name = "FK_CONDITIONNEMENT_LANGUE")
  private Langue langue;
}

终于是我DAO中的方法了

  @Override
  public List<Conditionnement> find(ConditionnementCriteria conditionnementCriteria) {
    Criteria criteria = getHibernateSession().createCriteria(Conditionnement.class, "c");
    criteria.createCriteria("c.langue_id", "l", JoinType.LEFT_OUTER_JOIN);

    return criteria.list();
  }

你知道是什么导致了这个异常吗？

感谢您的帮助。

Answer 1

将 c.langue_id 更改为 c.langue 如下所示，因为 hibernate 无法找到名称为 langue_id 的列。

public List<Conditionnement> find(ConditionnementCriteria conditionnementCriteria) {
    Criteria criteria = getHibernateSession().createCriteria(Conditionnement.class, "c");
    criteria.createCriteria("c.langue", "l", JoinType.LEFT_OUTER_JOIN);

    return criteria.list();
  }