我有以下課程：@Entity(name = "focusoc_orbit")@Datapublic class OrbitAdapter extends Adapter{ @Id private String id; ... public String getId() { return id; } public void setId(String id) { this.id = id; } ...}和，@Entity(name = "focusoc_conjunction")@Datapublic class ConjunctionAdapter extends Adapter { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @ManyToOne @JoinColumn(name = "target_id") private OrbitAdapter target; @ManyToOne @JoinColumn(name = "chaser_id") private OrbitAdapter chaser; ... public OrbitAdapter getTarget(){ return target; } public void setTarget(OrbitAdapter target){ this.target = target; } public String getChaserId(){ return chaserId; } public void setChaser(OrbitAdapter chaser){ this.chaser = chaser; } ...}我還定義了存儲庫：public interface ConjunctionRepository extends PagingAndSortingRepository<ConjunctionAdapter, Long> { public ConjunctionAdapter findByTargetAndChaserAndTimeOfCloseApproach(String target, String chaser, Date timeOfCloseApproach);}當我嘗試撥打電話時，ConjunctionAdapter c = conjunctionRepository.findByTargetAndChaserAndTimeOfCloseApproach(targetId, chaserId, timeOfCloseApproach());它返回錯誤：org.hibernate.property.access.spi.PropertyAccessException：通過持久屬性 [gcs.fds.focusoc.adapter.OrbitAdapter# 的反射訪問字段 [private java.lang.String gcs.fds.focusoc.adapter.OrbitAdapter.id] 時出錯id]：02035A”我嘗試了很多不同的解決方案，但發現它對我不起作用。有什么幫助嗎？
1 回答
元芳怎么了
TA貢獻1798條經驗 獲得超7個贊
我解決了！
將@Table類的注釋@Data更改為表名。所以，
@Entity
@Table(name = "focusoc_orbit")
public class OrbitAdapter extends Adapter{
@Id
private String id;
...
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
...
}
和，
@Entity
@Table(name = "focusoc_conjunction")
public class ConjunctionAdapter extends Adapter {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@ManyToOne
@JoinColumn(name = "target_id")
private OrbitAdapter target;
@ManyToOne
@JoinColumn(name = "chaser_id")
private OrbitAdapter chaser;
...
public OrbitAdapter getTarget(){
return target;
}
public void setTarget(OrbitAdapter target){
this.target = target;
}
public String getChaserId(){
return chaserId;
}
public void setChaser(OrbitAdapter chaser){
this.chaser = chaser;
}
...
}
這樣做會返回錯誤，
java.lang.IllegalArgumentException：參數值 [02035A] 與預期類型不匹配 [gcs.fds.focusoc.adapter.OrbitAdapter (n/a)]
所以我在Repository中添加了注釋@Query來指定必須在數據庫中搜索哪些內容，
public interface ConjunctionRepository extends PagingAndSortingRepository<ConjunctionAdapter, Long> {
@Query("SELECT c FROM ConjunctionAdapter c WHERE c.target.id = :target AND c.chaser.id = :chaser AND c.timeOfCloseApproach = :timeOfCloseApproach")
public ConjunctionAdapter findByTargetAndChaserAndTimeOfCloseApproach(String target, String chaser, Date timeOfCloseApproach);
}
并解決了！
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