java - Caused by : org. hibernate.MappingException: 实体映射中的重复列

Question

我是使用 maven 和 JBOSS 处理 JPA 的初学者，使用 Restful 制作我的应用程序我在进行部署时遇到以下问题

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: com.company.test_resources_war_1.0-SNAPSHOTPU] Unable to build EntityManagerFactory
     Caused by: org.hibernate.MappingException: Repeated column in mapping for entity: database.Photo column: fid_module (should be mapped with insert = \ "false \" update = \ "false \") "}}

不是那一步，检查了所有posles解决方案，但没有找到任何东西，有人可以帮助我吗？？

提前致谢

下面我展示了我在 postgres 中的 SQL 代码，我做了映射。

我有三个表(activity、event 和photo)，其中一个表(photo)是指到其他两个(activity 和 event)但是在一个列中(photo.fid_module)

SQL代码(工程师数据库-->Postgresql):

CREATE TABLE activity (
  id_activity integer not null,
  name character varying(150),
  description text,
  CONSTRAINT id_activity_pk PRIMARY KEY (id_activity)
)

CREATE TABLE event (
  id_event integer not null,
  name character varying(150),
  description text,
  date timestamp without time zone,
  CONSTRAINT id_event_pk PRIMARY KEY (id_event)
)

CREATE TABLE photo(
  id_photo integer not null,
  path character varying(150),
  fid_module integer not null,
  CONSTRAINT id_photo_pk PRIMARY KEY (id_photo),
  CONSTRAINT fk_photo_activity FOREIGN KEY (fid_module)
      REFERENCE activity (id_activity) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE NO ACTION,
  CONSTRAINT fk_photo_event FOREIGN KEY (fid_module)
      REFERENCE event (id_event) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE NO ACTION
)

现在我在 Netbenas 的帮助下完成了映射，并给了我以下代码(我为三个表做了映射，但在向我展示问题时，问题出在 Photo.java 类中) .

@Entity
@Table(name = "photo")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "photo.findAll", query = "SELECT p FROM Photo p"),
    @NamedQuery(name = "photo.findByFidPhoto", query = "SELECT p FROM Photo p WHERE p.fidphoto = :fidphoto"),
    @NamedQuery(name = "photo.findByIdPhoto", query = "SELECT p FROM Photo p WHERE p.idphoto = :idphoto")})
public class Photo implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Basic(optional = false)
    @Column(name = "id_photo")
    private Integer idPhoto;
    @Column(name = "path")
    private Recurso fidPath;
    @JoinColumn(name = "fid_module", referencedColumnName = "id_activity")
    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    private SliderWebHome fidModule;
    @JoinColumn(name = "fid_module", referencedColumnName = "id_event")
    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    private Publicacion fidModule1;

    public ModuloRecurso() {
    }
    .......
}

我正在使用 JPA 进行持久化(但是执行 mvn clean install 和 mvn jboss-as: deploy 几个拉我 hibernate 依赖项)任何人都可以告诉我我的错误是什么或者可以解决这个问题。谢谢。

Answer 1

你有两个同名映射的列

 @JoinColumn(name = "fid_module", referencedColumnName = "id_activity")
 @JoinColumn(name = "fid_module", referencedColumnName = "id_event")

更改名称属性之一!

查看您的异常，您可以阅读:

Repeated column in mapping for entity