下划线不正确的JPA列

Question

Unknown column 'program0_.program_id' in 'field list'

模型：程序

  @Entity
  @Table(name = "programs")
  @XmlRootElement
  public class Program implements Serializable {
          @Id
          @GeneratedValue(strategy = GenerationType.IDENTITY)
          @Basic(optional = false)
          @Column(name = "programId")
          private Long programId;
          @ManyToMany
          @JoinTable(
                  name = "programlabels",
                  joinColumns = {
                    @JoinColumn(name = "program", referencedColumnName = "programId")},
                  inverseJoinColumns = {
                    @JoinColumn(name = "label", referencedColumnName = "labelId")})
          private Collection<Label> labels;
        }

标签

@Entity
@Table(name = "labels")
@XmlRootElement
public class Label implements Serializable {
  @Id
  @Basic(optional = false)
  @NotNull
  @Size(min = 1, max = 100)
  @Column(name = "labelId")
  private String labelId;  
}

查询

select program0_.program_id as program_1_5_, ...

@Repository
public interface ProgramRepository extends JpaRepository<Program, Long> {}

Answer 1

如spring-boot-jpa-column-name-annotation-忽略中所述，列名正在转换为snake case。

可能的解决办法：

• 设置命名策略
• 在批注中使用小写列名