org.hibernate.DuplicateMappingException：表包含由多个物理列名引用的物理列名 [coverage_name]：

Question

我正在使用下面的课程，但给出了以下异常： org.hibernate.DuplicateMappingException: Table [] contains physical column name [scheme_name] 由多个物理列名引用： [SCHEME], [schemeName] 帮我解决这个问题.

@Embeddable
public class DRollSchemesId implements Serializable{

    private static final long serialVersionUID = 1L;

    @Id
    @Column(name = "ROLL_NO", length = 20)
    private String rollNo;

    @Id
    @Column(name = "SCHEME", length = 100, updatable = false, insertable = false )
    private String schemeName;

   public DRollSchemesId() {
   }

   public DRollSchemesId(String rollNo, String schemeName) {
      this.rollNo = rollNo;
      this.schemeName = schemeName;
   }

   public String getrollNo() {
       return this.rollNo;
   }

   public void setrollNo(String rollNo) {
       this.rollNo = rollNo;
   }
   public String getschemeName() {
       return this.schemeName;
   }

   public void setschemeName(String schemeName) {
       this.schemeName = schemeName;
   }

这是这里的实体，我试图通过使用该 Embeddable 类来使用复合键。

@Entity
@Table(name = "D_ROLL_SCHEMES")
  @IdClass(DRollSchemesId.class)
public class DRenewalAddonCoverages  implements java.io.Serializable{

  private static final long serialVersionUID = 1L;

  private DRollSchemesId id;
  @Id
  @Column(name = "ROLL_NO", length = 20)
    private String rollNo;

  @Id
  @Column(name = "SCHEME", length = 100, updatable = true, insertable 
= true )
    private String schemeName;



    public DRenewalAddonCoverages(){
    }


  @Id
  @AttributeOverrides(
      {
        @AttributeOverride(column = @Column(name = "ROLL_NO",  
updatable = true, insertable = true), name = "rollNo"),
        @AttributeOverride(column = @Column(name = "SCHEME", updatable 
= true, insertable = true), name = "schemeName")

      })

  @EmbeddedId
  public DRollSchemesId getId() {
        return this.id;
    }


    public String getrollNo() {
    return rollNo;
  }


  public void setrollNo(String rollNo) {
    this.rollNo = rollNo;
  }


  public String getschemeName() {
    return schemeName;
  }

  public void setschemeName(String schemeName) {
    this.schemeName = schemeName;
  }


  public void setId(DRollSchemesId id) {
        this.id = id;
    }

}

Answer 1

尝试如下：

class DRollSchemesId implements Serializable {
    private String rollNo;
    private String schemeName;
}

@Entity
@Table(name = "D_ROLL_SCHEMES")
@IdClass(DRollSchemesId.class)
public class DRenewalAddonCoverages implements java.io.Serializable {

    @Id
    @Column(name = "ROLL_NO", length = 20)
    private String rollNo;

    @Id
    @Column(name = "SCHEME", length = 100, updatable = true, insertable = true)
    private String schemeName;

}