我在我的應用程序中使用Spring 3和Hibernate 4。在運行時,我得到了異常。異常:org.hibernate.MappingException:未知實體
注:我在網上搜索,我確定導入我的實體註釋是正確的,並且組件掃描在xml文件中也很好。
01:51:15184 ERROR [STDERR] org.hibernate.MappingException:未知實體:com.voya.sid.entity.ApplicationEntity 01:51:15184 ERROR [STDERR]在org.hibernate.internal。 SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:1146) 01:51:15,184 ERROR [STDERR] at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1358) 01:51:15,184 ERROR [STDERR] at org。 hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:116) 01:51:15184 ERROR [STDERR]在org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206) 01:5 1:15,184 ERROR [STDERR] at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55) 01:51:15,184 ERROR [STDERR] at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener .java:191) 01:51:15,184 ERROR [STDERR] at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49) 01:51:15,184 ERROR [STDERR] at org.hibernate.event ERROR [STDERR] at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:683) 01:51:15,184 ERROR [STDERR] .internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90) 01:51:15,184 ERROR [STDERR] at org.hibernate.internal.SessionImpl.save(SessionImpl.java:675) 01:51:15,184 ERROR [STD ERR]在org.hibernate.internal.SessionImpl.save(SessionImpl.java:671)
下面是我應用CLASEES:
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="SID_APP_INSTANCE")
public class ApplicationEntity {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="APP_INSTANCE_KEY")
// other code
}
@Component
@Service("ApplicationService")
public class ApplicationServiceImpl implements ApplicationService{
public ApplicationDao getApplicationDao() {
return applicationDao;
}
public void setApplicationDao(ApplicationDao applicationDao) {
this.applicationDao = applicationDao;
}
@Autowired
private ApplicationDao applicationDao;
// some methods..
}
--- -------------------------------------------------- ---------------------------。
@Component
@Repository("ApplicationDao")
public class ApplicationDaoImpl implements ApplicationDao {
@Autowired
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public void addApplication(ApplicationEntity app) {
try{
System.out.println("Inside ApplicationDaoImpl..My Life : My Session :> "+ this.sessionFactory.getCurrentSession());
this.sessionFactory.getCurrentSession().save(app);
}catch (Exception e) {
System.out.println("Exception in saving..");
e.printStackTrace();
}
}
// other methods...
}
根context.xml中:
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven/>
<context:component-scan base-package="com" />
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<!-- <property name="dataSource" ref="dataSource" /> -->
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
</bean>
添加的hibernate.cfg.xml
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@host:50004:abc</property>
<property name="hibernate.connection.username">user</property>
<property name="hibernate.connection.password">pass</property>
<property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>
<property name="hibernate.default_schema">abc</property>
<property name="show_sql">true</property>
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.max_size">20</property>
<property name="hibernate.c3p0.timeout">300</property>
<property name="hibernate.c3p0.max_statements">50</property>
<property name="hibernate.c3p0.idle_test_period">3000</property>
<property name="hibernate.validator.apply_to_ddl">false</property>
<property name="hibernate.validator.autoregister_listeners">false</property>
</session-factory>
</hibernate-configuration>
請幫助。
提供有關hibernate.cfg.xml文件的更多細節。 –
@Keval:新增問題 – VJS
在XML文件中沒有您的ApplicationEntity類的映射。 –