异常：org.hibernate.mappingException：未知实体

Question

我在应用程序中使用了Spring3和Hibernate4。在运行时，我得到的异常值低于异常值。

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...
  }

    <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>

<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>

Answer 1

它可能会帮助您：

在root-context.xml文件中添加以下代码。

<value>ApplicationEntity(with package name)</value>