Для этого необходимо создать свой bean, в котором указать пакет с enities:
<bean id="entitiesScanner" class="org.myapp.utils.EntitiesScanner"> <property name="packagesToScan"> <list> <value>org.some.greate.package</value> </list> </property> </bean>
А в bean LocalContainerEntityManagerFactoryBean добавить следующий аргумент:
<property name="persistenceUnitPostProcessors"> <list> <ref bean="entitiesScanner"/> </list> </property>
Ну и создать класс собственно EntitiesScanner:
import org.hibernate.MappingException; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.core.io.Resource; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.core.io.support.ResourcePatternResolver; import org.springframework.core.type.classreading.CachingMetadataReaderFactory; import org.springframework.core.type.classreading.MetadataReader; import org.springframework.core.type.classreading.MetadataReaderFactory; import org.springframework.core.type.filter.AnnotationTypeFilter; import org.springframework.core.type.filter.TypeFilter; import org.springframework.orm.jpa.persistenceunit.MutablePersistenceUnitInfo; import org.springframework.orm.jpa.persistenceunit.PersistenceUnitPostProcessor; import org.springframework.util.ClassUtils; import javax.persistence.Embeddable; import javax.persistence.Entity; import javax.persistence.MappedSuperclass; import java.io.IOException; import java.util.HashSet; import java.util.Set; public class EntitiesScanner implements ApplicationContextAware, PersistenceUnitPostProcessor { private static final String RESOURCE_PATTERN = "**/*.class"; private ApplicationContext applicationContext; private String[] packagesToScan; private ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver(); private TypeFilter[] entityTypeFilters = new TypeFilter[]{ new AnnotationTypeFilter(Entity.class, false), new AnnotationTypeFilter(Embeddable.class, false), new AnnotationTypeFilter(MappedSuperclass.class, false)}; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { this.applicationContext = applicationContext; } @Override public void postProcessPersistenceUnitInfo(MutablePersistenceUnitInfo pui) { String[] entities = scanPackages(); for (String entity : entities) { pui.addManagedClassName(entity); } } /** * Set whether to use Spring-based scanning for entity classes in the * classpath instead of listing annotated classes explicitly. * <p/> * <p/> * <p/> * Default is none. Specify packages to search for autodetection of your * entity classes in the classpath. This is analogous to * <p/> * Spring's component-scan feature * (org.springframework.context.annotation.ClassPathBeanDefinitionScanner}). */ public void setPackagesToScan(String[] packagesToScan) { this.packagesToScan = packagesToScan; } /** * Perform Spring-based scanning for entity classes. * * @see #setPackagesToScan */ protected String[] scanPackages() { Set<String> entities = new HashSet<String>(); if (this.packagesToScan != null) { try { for (String pkg : this.packagesToScan) { String pattern = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(pkg) + RESOURCE_PATTERN; Resource[] resources = this.resourcePatternResolver.getResources(pattern); MetadataReaderFactory readerFactory = new CachingMetadataReaderFactory(this.resourcePatternResolver); for (Resource resource : resources) { if (resource.isReadable()) { MetadataReader reader = readerFactory.getMetadataReader(resource); String className = reader.getClassMetadata().getClassName(); if (matchesFilter(reader, readerFactory)) { entities.add(className); } } } } } catch (IOException ex) { throw new MappingException("Failed to scan classpath for unlisted classes", ex); } } return entities.toArray(new String[entities.size()]); } /** * Check whether any of the configured entity type filters matches the * current class descriptor contained in the metadata * <p/> * reader. */ private boolean matchesFilter(MetadataReader reader, MetadataReaderFactory readerFactory) throws IOException { if (this.entityTypeFilters != null) { for (TypeFilter filter : this.entityTypeFilters) { if (filter.match(reader, readerFactory)) { return true; } } } return false; } }
via Spring, JPA, Hibernate Best Practices and Tips
Но если вы используете spring 3.1.1, то достаточно такого конфига:
<bean id="myEmf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceProviderClass"
value="org.hibernate.ejb.HibernatePersistence"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.connection.datasource">${hibernate.connection.datasource}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.show.sql">${hibernate.show.sql}</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
</props>
</property>
<property name="packagesToScan">
<list>
<value>com.package.enities</value>
</list>
</property>
</bean>
При этом от pesistence.xml можно полностью отказаться.
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