java - @GeneratedValue(strategy = GenerationType.AUTO)はランダムではありません

java

それは私が持続するすべてのようです、それはidに401を入力し続け、このエラーを引き起こします。このための助けはありますか?

例外

Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.2.0.v20110202-r8913): org.eclipse.persistence.exceptions.DatabaseException
    Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry '401' for key 'PRIMARY'
    Error Code: 1062
    Call: INSERT INTO CUBEBID (ID, BIDAMOUNT, SUCCESSBID, WANTEDDATE, CUBE_ID) VALUES (?, ?, ?, ?, ?)
        bind => [5 parameters bound]
    Query: InsertObjectQuery(Entity.CubeBid[ id=401 ])
        at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:324)
        at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:798)
        at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:864)
        at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:583)
        at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:526)
        at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1729)
        at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:234)
        at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:207)
        at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:193)
        at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.insertObject(DatasourceCallQueryMechanism.java:342)
        at org.eclipse.persistence.internal.queries.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:162)
        at org.eclipse.persistence.internal.queries.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:177)
        at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:469)
        at org.eclipse.persistence.queries.InsertObjectQuery.executeCommit(InsertObjectQuery.java:80)
        at org.eclipse.persistence.queries.InsertObjectQuery.executeCommitWithChangeSet(InsertObjectQuery.java:90)
        at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:291)
        at org.eclipse.persistence.queries.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:58)
        at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:808)
        at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:711)
        at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:108)
        at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:85)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2842)
        at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1521)
        at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1503)
        at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1463)
        at org.eclipse.persistence.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:224)
        at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:123)
        at org.eclipse.persistence.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:3766)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1404)
        at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:616)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1511)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.issueSQLbeforeCompletion(UnitOfWorkImpl.java:3115)
        at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.issueSQLbeforeCompletion(RepeatableWriteUnitOfWork.java:331)
        at org.eclipse.persistence.transaction.AbstractSynchronizationListener.beforeCompletion(AbstractSynchronizationListener.java:157)
        at org.eclipse.persistence.transaction.JTASynchronizationListener.beforeCompletion(JTASynchronizationListener.java:68)
        at com.sun.enterprise.transaction.JavaEETransactionImpl.commit(JavaEETransactionImpl.java:437)
        at com.sun.enterprise.transaction.JavaEETransactionManagerSimplified.commit(JavaEETransactionManagerSimplified.java:867)
        at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:5115)
        at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4880)
        at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2039)
        at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1990)
        at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:213)
        at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
        at $Proxy214.bidCube(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:241)
        at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:152)
        at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:227)
        at BusinessLogic.__PartnerBeanLocal_Remote_DynamicStub.bidCube(BusinessLogic/__PartnerBeanLocal_Remote_DynamicStub.java)
        at BusinessLogic._PartnerBeanLocal_Wrapper.bidCube(BusinessLogic/_PartnerBeanLocal_Wrapper.java)
        at managedBean.CubeBiddingManagedBean.bidCube(CubeBiddingManagedBean.java:107)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
        at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
        at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
        at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:148)
        at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
        at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:769)
        at javax.faces.component.UICommand.broadcast(UICommand.java:300)
        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
        at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
        at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:409)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
        at security.SecurityFilter.doFilter(SecurityFilter.java:67)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
        at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:228)
        at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
        at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
        at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
        at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
        at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
        at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
        at java.lang.Thread.run(Thread.java:662)


コード:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Entity;

import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;

/**
 *
 * @author GT
 */
@Entity
public class CubeBid implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private int bidAmount;
    private long wantedDate;
    private boolean successBid;
    @ManyToOne
    private Cubes cube;

    public CubeBid() {
        successBid = false;
    }

    public Long getId() {
        return id;
    }

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

    public int getBidAmount() {
        return bidAmount;
    }

    public void setBidAmount(int bidAmount) {
        this.bidAmount = bidAmount;
    }

    public Cubes getCube() {
        return cube;
    }

    public void setCube(Cubes cube) {
        this.cube = cube;
    }

    public boolean isSuccessBid() {
        return successBid;
    }

    public void setSuccessBid(boolean successBid) {
        this.successBid = successBid;
    }

    public long getWantedDate() {
        return wantedDate;
    }

    public void setWantedDate(long wantedDate) {
        this.wantedDate = wantedDate;
    }



    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof CubeBid)) {
            return false;
        }
        CubeBid other = (CubeBid) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "Entity.CubeBid[ id=" + id + " ]";
    }

}
答え
GenerationType.AUTOは、基になるデータベースに基づいてIDを生成する別の方法を選択します。つまり、一部のデータベースでは、次のIDを含む別のテーブルが必要になる場合があります。これは、新しいエンティティを永続化するときにフェッチされ、増分されます。他のデータベースは、サポートされているものと、それが唯一の主キーであるかどうかなどの他の要因に応じて、「ID」または「自動インクリメント」フィールドを使用します。

したがって、コメントの@Thomasで言及されているように、ORM(EclipseLinkなど)がデータベーススキーマ(テーブルなど)を作成できるようにする必要がある場合があります。

または、テーブルのメタデータがわずかに破損している可能性があります。 MySQL(使用しているように見えます)では、次のコードを使用してメタデータを修正できます...

SELECT @my_auto_increment := MAX(id) FROM tablename;
SET @query = CONCAT("ALTER TABLE tablename auto_increment = ", @my_auto_increment);
PREPARE stmt FROM @query;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
関連記事

java - Linux OSでのシリアルポート通信

java - ダイアログへのonContextItemSelected

c# - JavaリストXMLをC#にインポートする方法

java - 文字列の重複を見つけるための私のプログラムの効率に関する入力が必要

java - maven:同じ2つのアーティファクトを追加しますが、バージョンが異なります

java - Java Scripting Engineクラスのインスタンス化

java - AndroidのようなContextMenu

java - パス文字列がJavaのローカルマシンかリモートマシンかを判別する方法

java - xAuth for Java?

java - オブジェクトとプロパティが同じタイプである@XmlInverseReferenceを使用することは可能ですか?