コンソールでこのエラーが発生する理由「フィールドリスト」の「不明な列 'worklogent0_.workerEntity」？

Question

私は休止状態、restEasyおよびmySqlを使用するアプリケーションを開発しています。

@Entity 
@Table(name ="worker") 
public class WorkerEntity extends Worker implements Serializable { 
    public WorkerEntity(String worker_name, String worker_surname, int worker_salary, String worker_task) { 
     super(worker_name, worker_surname, worker_salary, worker_task); 
     // TODO Auto-generated constructor stub 
    } 

    private static final long serialVersionUID = 5364531535728847001L; 

    @OneToOne(mappedBy="workerEntity") 
    private WorklogEntity workLogEntity; 

    public WorkerEntity(){ 
     super(); 
     } 

    public WorklogEntity getWorkLogEntity() { 
     return workLogEntity; 
    } 

    public void setWorkLogEntity(WorklogEntity workLogEntity) { 
     this.workLogEntity = workLogEntity; 
    } 

    @Override 
    public int getWorker_salary() { 
     // TODO Auto-generated method stub 
     return super.getWorker_salary(); 
    } 

    @Override 
    public void setWorker_salary(int worker_salary) { 
     // TODO Auto-generated method stub 
     super.setWorker_salary(worker_salary); 
    } 

    @Override 
    public String getWorker_task() { 
     // TODO Auto-generated method stub 
     return super.getWorker_task(); 
    } 

    @Override 
    public void setWorker_task(String worker_task) { 
     // TODO Auto-generated method stub 
     super.setWorker_task(worker_task); 
    } 
    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    @Override 
    public int getWorker_id() { 
     // TODO Auto-generated method stub 
     return super.getWorker_id(); 
    } 

    @Override 
    public void setWorker_id(int worker_id) { 
     // TODO Auto-generated method stub 
     super.setWorker_id(worker_id); 
    } 

    @Override 
    public String getWorker_name() { 
     // TODO Auto-generated method stub 
     return super.getWorker_name(); 
    } 

    @Override 
    public void setWorker_name(String worker_name) { 
     // TODO Auto-generated method stub 
     super.setWorker_name(worker_name); 
    } 

    @Override 
    public String getWorker_surname() { 
     // TODO Auto-generated method stub 
     return super.getWorker_surname(); 
    } 

    @Override 
    public void setWorker_surname(String worker_surname) { 
     // TODO Auto-generated method stub 
     super.setWorker_surname(worker_surname); 
    } 

    @Override 
    public int hashCode() { 
     // TODO Auto-generated method stub 
     return super.hashCode(); 
    } 

    @Override 
    public boolean equals(Object obj) { 
     // TODO Auto-generated method stub 
     return super.equals(obj); 
    } 

    @Override 
    protected Object clone() throws CloneNotSupportedException { 
     // TODO Auto-generated method stub 
     return super.clone(); 
    } 

    @Override 
    public String toString() { 
     // TODO Auto-generated method stub 
     return super.toString(); 
    } 

    @Override 
    protected void finalize() throws Throwable { 
     // TODO Auto-generated method stub 
     super.finalize(); 
    } 

} 

そして、これは私のworklogEntityクラスです：：これは私のworkerEntityクラスです 労働者と作業ログ：。私はMySQLで2つのテーブルを持っている

Caused by: java.sql.SQLSyntaxErrorException: Unknown column 'worklogent0_.workerEntity' in 'field list' 
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:536) 
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:513) 
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:115) 
    at com.mysql.cj.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:1983) 
    at com.mysql.cj.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1826) 
    at com.mysql.cj.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1923) 
    at org.jboss.jca.adapters.jdbc.CachedPreparedStatement.executeQuery(CachedPreparedStatement.java:113) 
    at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:504) 
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70) 
    ... 199 more 

：私のアプリは、私はこのエラーを得た

@Entity 
@Table(name ="worklog") 
public class WorklogEntity extends Worklog implements Serializable { 

    private static final long serialVersionUID = 5364531535728847001L; 

    @OneToOne 
    @JoinColumn(name="worker_id") 
    private WorkerEntity workerEntity; 

    public WorkerEntity getWorkerEntity() { 
     return workerEntity; 
    } 

    public void setWorkerEntity(WorkerEntity workerEntity) { 
     this.workerEntity = workerEntity; 
    } 

    public WorklogEntity() { 
     super(); 
    } 

    public WorklogEntity(Long id, Integer minutes, Date date, String task, String description) { 
     super(id, minutes, date, task, description); 
    } 

    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    @Override 
    public Long getId() { 
     return super.getId(); 
    } 

    @Temporal(TemporalType.DATE) 
    @Override 
    public Date getDate() { 
     return super.getDate(); 
    } 

    @Override 
    public Integer getMinutes() { 
     return super.getMinutes(); 
    } 

    @Override 
    public String getTask() { 
     return super.getTask(); 
    } 

    @Override 
    public String getDescription() { 
     return super.getDescription(); 
    } 

    public String toString() { 
     StringBuilder stringBuilder = new StringBuilder(); 
     stringBuilder.append(getId()).append(" ").append(getDate()).append(" ") 
      .append(getMinutes()).append(" ").append(getTask()).append(" ") 
      .append(getDescription()).append(" "); 
     return stringBuilder.toString(); 
    } 
} 

これはWorker.javaクラス鉱山である：私は間違えてい

public class Worklog { 

    private Long id; 
    private Integer minutes; 
    private Date date; 
    private String task; 
    private String description; 

    public Worklog() { 
    } 

    public Worklog(Long id, Integer minutes, Date date, String task, String description) { 
     super(); 
     this.id = id; 
     this.minutes = minutes; 
     this.date = date; 
     this.task = task; 
     this.description = description; 
    } 

    public Long getId() { 
     return id; 
    } 

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

    public Integer getMinutes() { 
     return minutes; 
    } 

    public void setMinutes(Integer minutes) { 
     this.minutes = minutes; 
    } 

    public Date getDate() { 
     return date; 
    } 

    public void setDate(Date date) { 
     this.date = date; 
    } 

    public String getTask() { 
     return task; 
    } 

    public void setTask(String task) { 
     this.task = task; 
    } 

    public String getDescription() { 
     return description; 
    } 

    public void setDescription(String description) { 
     this.description = description; 
    } 

} 

：

public class Worker { 
    private int worker_id; 
    private String worker_name; 
    private String worker_surname; 
    private int worker_salary; 
    private String worker_task; 
    public Worker(String worker_name, String worker_surname, int worker_salary, String worker_task) { 
     super(); 
     this.worker_name = worker_name; 
     this.worker_surname = worker_surname; 
     this.worker_salary = worker_salary; 
     this.worker_task = worker_task; 
    } 
    public Worker() { 
     // TODO Auto-generated constructor stub 
    } 
    public int getWorker_salary() { 
     return worker_salary; 
    } 
    public void setWorker_salary(int worker_salary) { 
     this.worker_salary = worker_salary; 
    } 
    public String getWorker_task() { 
     return worker_task; 
    } 
    public void setWorker_task(String worker_task) { 
     this.worker_task = worker_task; 
    } 
    public int getWorker_id() { 
     return worker_id; 
    } 
    public void setWorker_id(int worker_id) { 
     this.worker_id = worker_id; 
    } 
    public String getWorker_name() { 
     return worker_name; 
    } 
    public void setWorker_name(String worker_name) { 
     this.worker_name = worker_name; 
    } 
    public String getWorker_surname() { 
     return worker_surname; 
    } 
    public void setWorker_surname(String worker_surname) { 
     this.worker_surname = worker_surname; 
    } 

} 

これは、鉱山作業ログクラスですか？

Answer 1

メソッドやフィールドでJPAアノテーションを混在させていますが、これは許可されていません。 @Idアノテーションはメソッド上にあるので、Hibernateはそれらを選択し、@JoinColumnのようなフィールドのアノテーションを無視します。

アノテーションをメソッドに書き直すと効果があります。

WorkLogEntity：

private WorkerEntity workerEntity; 

@OneToOne 
@JoinColumn(name="worker_id") 
public WorkerEntity getWorkerEntity() { 
    return workerEntity; 
} 

がWorkerEntity：もちろん

private WorklogEntity workLogEntity; 

@OneToOne(mappedBy="workerEntity") 
public WorklogEntity getWorkLogEntity() { 
    return workLogEntity; 
} 

あなたがフィールドの代わりの方法で、すべてのJPAのアノテーションを移動することを決定することができ、それは同じように動作します。