Piuttosto che usare la build per creare una versione prod o dev del persence.xml, è sufficiente spostare tutte le impostazioni delle proprietà nel contenuto della molla.
mio persistence.xml è
<?xml version="1.0" encoding="UTF-8"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="JPAService" transaction-type="RESOURCE_LOCAL">
</persistence-unit>
</persistence>
Nel mio tenore di primavera, Ho quindi utilizzare il PropertyPlaceholderConfigurer per leggere i valori delle proprietà dev/prod e impostare questi in fagiolo EntityManagerFactory
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/>
<bean class="org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor"/>
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>
<bean id="propertyPlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/>
<property name="ignoreResourceNotFound" value="true"/>
<property name="locations">
<list>
<value>classpath:dev.properties</value>
</list>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${datasource.driverClassName}"/>
<property name="url" value="${datasource.url}"/>
<property name="username" value="${datasource.username}"/>
<property name="password" value="${datasource.password}"/>
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceXmlLocation" value="classpath:./META-INF/persistence.xml"/>
<property name="persistenceUnitName" value="JPAService"/>
<property name="dataSource" ref="dataSource"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.OracleDialect"/>
<property name="showSql" value="true" />
<property name="generateDdl" value="true"/>
</bean>
</property>
<property name="jpaProperties">
<!-- set extra properties here, e.g. for Hibernate: -->
<props>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="false"/>
</beans>
Grazie, per la mia soluzione Ora ho usato il PropertyPlaceholderConfigurer nel context.xml con un jdbc.properties per l'origine dati. Ho spostato la sospensione di entrambi i file in un hibernate.properties. Questi due file vengono sostituiti con versioni diverse per la distribuzione e lo sviluppo. Hibernate.properties sembra essere rilevato correttamente in fase di esecuzione, sebbene all'attività ant hibernatetool debba essere indicato dove si trova il file, anche se si trova nel classpath. Quindi tutto funziona ora. :) – subes