使用Hibernate注解自动创建表报错
实体类
package com.entity;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;/* * 使用注解创建并关联数据库中的表，需要在hibernate配置文件中设置映射 */@Entitypublic class Weapon { private long id; private String name; @Id @GeneratedValue(strategy=GenerationType.SEQUENCE) //@SequenceGenerator(name="weapon_seq") public long getId() { return id; } public void setId(long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; }}<mapping class="com.entity.Weapon"/>
package com.test;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.AnnotationConfiguration;import com.entity.Weapon;/* * 通过在hibernate文件中注册实体bean，并在实体bean中添加 * hibernate注解，可以自动创建数据库中的关联表并将属性与字段关联 */public class TestAnnotations { private static AnnotationConfiguration ac = new AnnotationConfiguration().configure(); private static SessionFactory sf = null; public static void main(String[] args) { sf = ac.buildSessionFactory(); Session session = sf.openSession(); Transaction tran = session.beginTransaction(); Weapon weapon = new Weapon(); weapon.setName("jack"); weapon.setId(1); session.save(weapon); tran.commit(); session.close(); }}log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version).log4j:WARN Please initialize the log4j system properly.log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.Hibernate: select hibernate_sequence.nextval from dualHibernate: insert into Weapon (name, id) values (?, ?)Exception in thread "main" org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1028) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:366) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137) at com.test.TestAnnotations.main(TestAnnotations.java:27)Caused by: java.sql.BatchUpdateException: ORA-00942: table or view does not exist at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367) at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:8739) at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268) ... 8 more
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有没有在配置文件里设置对象建模工具？？？
<property name="hibernate.hbm2ddl.auto">update</property>
有没有？？？
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