4
Я получаю ниже упомянутую трассировку стека, хотя данные вставляются успешно.org.hibernate.exception.ConstraintViolationException: Не удалось выполнить пакетное обновление JDBC.
Hibernate: select attendee_.attendeeId, attendee_.attendeeName as attendee2_1_ from attendee attendee_ where attendee_.attendeeId=?
Hibernate: select attendee_.attendeeId, attendee_.attendeeName as attendee2_1_ from attendee attendee_ where attendee_.attendeeId=?
Hibernate: insert into event (eventName, startDate, eventId) values (?, ?, ?)
Hibernate: insert into attendee (attendeeName, attendeeId) values (?, ?)
Hibernate: insert into attendee (attendeeName, attendeeId) values (?, ?)
Hibernate: update attendee set attendeeId=? where attendeeId=?
Hibernate: update attendee set attendeeId=? where attendeeId=?
Aug 29, 2010 7:39:10 PM org.hibernate.util.JDBCExceptionReporter logExceptions
WARNING: SQL Error: 1062, SQLState: 23000
Aug 29, 2010 7:39:10 PM org.hibernate.util.JDBCExceptionReporter logExceptions
SEVERE: Duplicate entry '11' for key 'PRIMARY'
Aug 29, 2010 7:39:10 PM org.hibernate.event.def.AbstractFlushingEventListener performExecutions
SEVERE: Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:202)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:230)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:144)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980)
at com.practice.hibernate.basic.BasicOperations.main(BasicOperations.java:51)
Caused by: java.sql.BatchUpdateException: Duplicate entry '11' for key 'PRIMARY'
at com.mysql.jdbc.ServerPreparedStatement.executeBatch(ServerPreparedStatement.java:665)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:195)
... 6 more
Exception in thread "main" org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:202)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:230)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:144)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980)
at com.practice.hibernate.basic.BasicOperations.main(BasicOperations.java:51)
Caused by: java.sql.BatchUpdateException: Duplicate entry '11' for key 'PRIMARY'
at com.mysql.jdbc.ServerPreparedStatement.executeBatch(ServerPreparedStatement.java:665)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:195)
... 6 more
Обратите внимание:
а) Моя БД не имеет записей в настоящее время б) данные получает вставленные в БД успешно.
Здесь я пытаюсь сохранить объект Event, который содержит два объекта Attendee. Вот и все.
Мой тест:
public static void main(String[] args) {
Session session = HibernateRuntime.getSession();
try {
Set<Attendee> attendees = new HashSet<Attendee>(2);
Attendee attendee = new Attendee();
attendee.setAttendeeId(3);
attendee.setAttendeeName("Baswanth Rao");
Attendee attendee1 = new Attendee();
attendee1.setAttendeeId(4);
attendee1.setAttendeeName("Razi Ahmed");
attendees.add(attendee);
attendees.add(attendee1);
Event event = new Event();
event.setEventId(11);
event.setEventName("Initiatives Workshop 3");
event.setStartDate(new Date());
event.setAttendees(attendees);
session.save(event);
session.flush();
} finally {
session.close();
}
}
Event.hbm.xml:
<hibernate-mapping package="com.practice.hibernate.vo">
<class name="Event" table="event">
<id name="eventId" column="eventId" type="long">
<generator class="assigned" />
</id>
<property name="eventName" type="string" length="100" />
<property name="startDate" type="date" />
<set name="attendees" cascade="all">
<key column="attendeeId" />
<one-to-many class="Attendee" />
</set>
</class>
</hibernate-mapping>
hibernate.cfg.xml
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/test</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<property name="connection.autocommit">false</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<mapping resource="com/practice/hibernate/vo/Event.hbm.xml"></mapping>
<mapping resource="com/practice/hibernate/vo/Attendee.hbm.xml"></mapping>
</session-factory>
</hibernate-configuration>
удалить зависимость в очном и попробовать еще раз. или дважды проверьте свой Attendee.hbm.xml – mhshams
, вы уверены, что тестовый код работает только 1 раз? Вы можете поместить некоторый журнал в свой основной метод, чтобы убедиться, что он только что выполнил один из них. – mhshams
Bashu, используйте ссылку «Изменить», чтобы добавить это в вопрос.Это находится в левом нижнем углу текста вашего вопроса, чуть ниже кнопки для тега спящего режима. – meriton