無法找到邏輯名稱列：產品

Question

休眠拋出錯誤：

org.hibernate.MappingException: 
    Unable to find column with logical name: product in 
     org.hibernate.mapping.Table(product_part) 
    and its related supertables and secondary tables 

實體類

@Entity 
@Table(name = "product_part") 
public class ProductPart implements Serializable { 

    @Id 
    @GeneratedValue 
    @Column(name = "id") 
    private int id; 

    @ManyToOne 
    @javax.persistence.JoinColumn(name = "product", referencedColumnName = "product", nullable = false) 
    private ProductPart productByProduct; 

    @ManyToOne 
    @javax.persistence.JoinColumn(name = "part", referencedColumnName = "part", nullable = false) 
    private Part partByPart; 
    } 

MySQL表

CREATE TABLE `product_part` (
    `id` int(11) NOT NULL AUTO_INCREMENT, 
    `product` int(11) NOT NULL, 
    `part` int(11) NOT NULL, 
    PRIMARY KEY (`id`), 
    KEY `fk_product` (`product`), 
    KEY `fk_part` (`part`), 
    CONSTRAINT `fk_product` FOREIGN KEY (`product`) REFERENCES `product` (`product`) ON DELETE NO ACTION ON UPDATE NO ACTION, 
    CONSTRAINT `fk_part` FOREIGN KEY (`part`) REFERENCES `part` (`part`) ON DELETE NO ACTION ON UPDATE NO ACTION 
) 

問題是什麼？如何解決它？

UPDATE：

鏈接表的外鍵：

CREATE TABLE `part` (
     `part` int(11) NOT NULL AUTO_INCREMENT, 
     `name` varchar(150) NOT NULL, 
     PRIMARY KEY (`part`) 
    ) 

和

CREATE TABLE `product` (
     `product` int(11) NOT NULL AUTO_INCREMENT, 
     `name` varchar(150) NOT NULL, 
     PRIMARY KEY (`product`) 
) 

Answer 1

我看到你的類有

@ManyToOne 
@javax.persistence.JoinColumn(name = "product", referencedColumnName = "product", nullable = false) 
private ProductPart productByProduct; 

這是Hibernate Self Join Annotations。有@ManyToOne，但沒有@OneToMany。表格未定義「產品」列。 您需要添加

@OneToMany(mappedBy="productByProduct") 
private Set<ProductPart > subProductPart = new HashSet<ProductPart>();