Java org.hibernate.MappingException使用注释
我对这两个类使用JPA注释:Java org.hibernate.MappingException使用注释,java,hibernate,jpa,Java,Hibernate,Jpa,我对这两个类使用JPA注释: @Entity @RooJavaBean @RooToString @RooEntity @MappedSuperclass public abstract class BaseEntity { @Temporal(TemporalType.TIMESTAMP) @DateTimeFormat(style = "S-") private Calendar created; @Temporal(TemporalType.TIMESTAMP) @
@Entity
@RooJavaBean
@RooToString
@RooEntity
@MappedSuperclass
public abstract class BaseEntity {
@Temporal(TemporalType.TIMESTAMP)
@DateTimeFormat(style = "S-")
private Calendar created;
@Temporal(TemporalType.TIMESTAMP)
@DateTimeFormat(style = "S-")
private Calendar updated;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "id")
private Long id;
@Version
@Column(name = "version")
protected Integer version;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Integer getVersion() {
return version;
}
public void setVersion(Integer version) {
this.version = version;
}
@PrePersist
protected void onCreate() {
created = Calendar.getInstance();
}
@PreUpdate
protected void onUpdate() {
updated = Calendar.getInstance();
}
}
@Entity
@RooJavaBean
@RooToString
@RooEntity
public class Event extends BaseEntity {
private Score challenger;
private Score defender;
...
}
@Entity
@RooJavaBean
@RooToString
@RooEntity
public class Score extends BaseEntity {
@ManyToOne
private Team team;
private Event event;
private Integer score;
private Boolean accepted;
}
但我有一个例外:
Caused by: org.hibernate.MappingException: Could not determine type for: edu.unlv.cs.ladders.entities.Score, at table: event, for columns: [org.hibernate.mapping.Column(challenger)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:269)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
at org.hibernate.mapping.Property.isValid(Property.java:185)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:440)
at org.hibernate.mapping.RootClass.validate(RootClass.java:192)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1108)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1293)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:859)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
这是否与访问同一类的两个独立字段有关?我是否需要更具描述性并指定列名或其他内容?您需要使用manytoone或OneToOne注释分数属性。您需要使用manytoone或OneToOne注释分数属性