Question

我有一个带有辅助方法的Entity类。喜欢这个..

@Entity
@Table(name = "MEMBER", schema = "APP_SCHEMA")
public class Member {

    private String id;
    private String externalMemberId;

    @Id
    @Column(name = "MEMBER_ID")
    public String getId() {
        return id;
    }

    @Column(name = "EXTERNAL_MEMBER_ID")
    public String getExternalMemberId() {
        return externalMemberId;
    }

    public String getAbc(){
        return "abc";
    }
}

初始化

时启动jboss服务器时出现异常

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: DataDB] Unable to build EntityManagerFactory
Caused by: org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
Caused by: java.lang.reflect.InvocationTargetException
Caused by: org.hibernate.PropertyNotFoundException: Could not find a setter for property **abc** in class com.myapp.model.Member"}}

为什么它不允许我在实体类中有辅助/方便的方法？为什么期望与财产映射？我正在使用JBoss app服务器与Hibernate和JPA。

Answer 1

Hibernate将您的getter方法getAbc()解释为应该保留的abc属性的getter。您可以使用@Transient注释来标记它不应存储在数据库中的字段。或者尝试将注释放在getter方法的字段中。

我可以在Hibernate实体类中有一个帮助/方便的方法吗？

1 个答案: