4

经过大量阅读和尝试网络上的解决方案后，我决定寻求帮助，因为尝试过的解决方案都不适合我。

我有一个非常简单的类，它有一个 LocalDateTime 变量。

我创建了一个 MySQL 表，我想在其中存储包含此变量的对象。对于 LocalDateTime 变量，我尝试过 DateTime 和 TimeStamp 类型。

据我所知，Hibernate 5 应该支持 java.time.localdatetime。正如我所说，我尝试使用时间戳类型和日期，只要时间戳和日期时间作为 Mysql 列类型。

总是同样的错误。
这是我开始的一个新项目，我想开始使用新的 Java 8 DateTime。

在这里我附上所有的类和配置文件。

这是 Fecha.java，我想在 Mysql 表上映射的对象。

@Entity
@Table(name = "Fecha", catalog = "qtx590", uniqueConstraints = { @UniqueConstraint(columnNames = { "_id" }) })
public class Fecha implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "_id", nullable = false, unique = true)
private int _id;
@Column(name = "_idEmpresa", nullable = false)
private int _idEmpresa;
@Column(name = "_idTurno", nullable = false)
private int _idTurno;
@Column(name = "Momento", nullable = false)
@Temporal(TemporalType.TIMESTAMP)
private LocalDateTime momento;

public Fecha() {

    this._id = 99999;
    this._idEmpresa = 99999;
    this._idTurno = 99999;
    this.momento = LocalDateTime.now();
}

public Fecha(int _id, int _idEmpresa, int idTurno, LocalDateTime momento) {

    this._id = _id;
    this._idEmpresa = _idEmpresa;
    this._idTurno = idTurno;
    this.momento = momento;
}

public String getMomentoString() {
    DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    return this.momento.format(format);
}

public int get_id() {
    return _id;
}

public void set_id(int _id) {
    this._id = _id;
}

public int get_idEmpresa() {
    return _idEmpresa;
}

public void set_idEmpresa(int _idEmpresa) {
    this._idEmpresa = _idEmpresa;
}

public int get_idTurno() {
    return _idTurno;
}

public void set_idTurno(int idTurno) {
    this._idTurno = idTurno;
}

public LocalDateTime getmomento() {
    return momento;
}

public void setmomento(LocalDateTime momento) {
    this.momento = momento;
}

}

这是 HibernateConnectorClass

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateConnector {

private static HibernateConnector me;
private Configuration cfg;
private SessionFactory sessionFactory;

private HibernateConnector() throws HibernateException {

    cfg = new Configuration();
    sessionFactory = cfg.configure().buildSessionFactory();
}

public static synchronized HibernateConnector getInstance() throws HibernateException {
    if (me == null) {
        me = new HibernateConnector();
    }

    return me;
}

public Session getSession() throws HibernateException {
    Session session = sessionFactory.openSession();
    if (!session.isConnected()) {
        this.reconnect();
    }
    return session;
}

private void reconnect() throws HibernateException {
    this.sessionFactory = cfg.buildSessionFactory();
}
}

这是测试它的测试类：

public class Prueba {



public static void main(String[] args) {
    // TODO Auto-generated method stub


    FechaDAO fechaDAO = new FechaDAO();

    Fecha f = new Fecha();

    System.out.println(f.getmomento());

    fechaDAO.insertar(f);

    System.out.println("FIN");

}


}

hibernate.cfg.xml 工作正常（我知道是因为我用其他实体/表对其进行了测试。

这是特定于 Fecha 对象

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- Generated 31-ago-2015 12:58:20 by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="Fecha" table="Fecha">
    <id name="_id" type="java.lang.Integer" access="field">
        <column name="_id" />
        <generator class="increment" />
    </id>
    <property name="_idEmpresa" type="java.lang.Integer" access="field">
        <column name="_idEmpresa" />
    </property>
    <property name="_idTurno" type="java.lang.Integer">
        <column name="_idTurno" />
    </property>
    <property name="momento" type="java.time.LocalDateTime">
        <column name="Momento" />
    </property>
</class>
</hibernate-mapping>

这是错误：

2015-09-02T13:47:16.719
sep 02, 2015 1:47:16 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.0.Final}
sep 02, 2015 1:47:16 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
sep 02, 2015 1:47:16 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
sep 02, 2015 1:47:16 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.0.Final}
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://qtx590.li-bra.es:3306/qtx590]
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=qtx590, password=****}
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
sep 02, 2015 1:47:17 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
Hibernate: select max(_id) from Fecha
Hibernate: insert into Fecha (_idEmpresa, _idTurno, Momento, _id) values (?, ?, ?, ?)
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: 22001
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
sep 02, 2015 1:47:18 PM org.hibernate.internal.SessionImpl$5 mapManagedFlushFailure
ERROR: HHH000346: Error during managed flush [could not execute statement]
org.hibernate.exception.DataException: could not execute statement
    at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:52)
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207)
    at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2823)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3323)
    at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:447)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:333)
    at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:335)
    at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
    at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1224)
    at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:464)
    at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:2890)
    at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2266)
    at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:485)
    at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:146)
    at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
    at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:230)
    at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:65)
    at FechaDAO.insertar(FechaDAO.java:26)
    at Prueba.main(Prueba.java:16)
Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2983)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
    at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1504)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204)
    ... 19 more
Hibernate: insert into Fecha (_idEmpresa, _idTurno, Momento, _id) values (?, ?, ?, ?)
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: 22001
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
Exception in thread "main" org.hibernate.exception.DataException: could not execute statement
    at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:52)
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207)
    at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2823)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3323)
    at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:447)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:333)
    at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:335)
    at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
    at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1224)
    at FechaDAO.insertar(FechaDAO.java:32)
    at Prueba.main(Prueba.java:16)
Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2983)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
    at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1504)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204)
    ... 11 more
4

2 回答 2

2

IIRC 用于 Hibernate5 映射 java.time.* 不需要/接受 @Temporal 注释。Hibernate5有足够的信息从属性的类型来判断映射。这在他们的文件中有所说明。

于 2016-07-27T00:50:34.907 回答
0

Hibernate 5 中支持 Java 8，但这不能移植到其他 JPA 实现。如下添加依赖项，无需更多配置

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-java8</artifactId>
    <version>5.1.0.Final</version>
</dependency>

进一步阅读：Hibernate 5: How to persist LocalDateTime & Co with Hibernate

于 2017-06-16T04:20:11.317 回答