Spring 3.1: DataSource non avviato automaticamente alla classe @Configuration

Question

Sto utilizzando Spring MVC 3.1.0M2 e sto provando a spostare le mie configurazioni su java bean. Ma ho incontrato seguente errore:

2011-09-14 18:43:42.301:WARN:/:unavailable org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration#0': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: void org.springframework.transaction.annotation.AbstractTransactionManagementConfiguration.setConfigurers(java.util.Collection); nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class ru.mystamps.web.config.DbConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean ru.mystamps.web.config.DbConfig.entityManagerFactory()] threw exception; nested exception is java.lang.IllegalArgumentException: DataSource must not be null

Mapping da web.xml:

<context-param> 
    <param-name>spring.profiles.default</param-name> 
    <param-value>dev</param-value> 
</context-param> 

<servlet> 
    <servlet-name>spring</servlet-name> 
    <servlet-class> 
     org.springframework.web.servlet.DispatcherServlet 
    </servlet-class> 
    <init-param> 
     <param-name>contextClass</param-name> 
     <param-value> 
      org.springframework.web.context.support.AnnotationConfigWebApplicationContext 
     </param-value> 
    </init-param> 
    <init-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value> 
      ru.mystamps.web.config.MvcConfig, 
      ru.mystamps.web.config.DbConfig 
     </param-value> 
    </init-param> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

DbConfig.java:

@Configuration 
@EnableTransactionManagement 
@ImportResource("classpath:spring/datasource.xml") 
public class DbConfig { 

    @Autowired 
    private DataSource dataSource; 

    @Bean 
    public JpaVendorAdapter jpaVendorAdapter() { 
     final HibernateJpaVendorAdapter jpaVendorAdapter = 
      new HibernateJpaVendorAdapter(); 

     jpaVendorAdapter.setDatabasePlatform(dialectClassName); 
     jpaVendorAdapter.setShowSql(showSql); 

     return jpaVendorAdapter; 
    } 

    @Bean 
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() { 
     final LocalContainerEntityManagerFactoryBean entityManagerFactory = 
      new LocalContainerEntityManagerFactoryBean(); 

     entityManagerFactory.setJpaVendorAdapter(jpaVendorAdapter()); 
     entityManagerFactory.setDataSource(dataSource); 

     final Map<String, String> jpaProperties = new HashMap<String, String>(); 
     jpaProperties.put("hibernate.format_sql", formatSql); 
     jpaProperties.put("hibernate.connection.charset", "UTF-8"); 
     jpaProperties.put("hibernate.hbm2ddl.auto", hbm2ddl); 
     entityManagerFactory.setJpaPropertyMap(jpaProperties); 

     return entityManagerFactory; 
    } 

    @Bean 
    public PlatformTransactionManager transactionManager() { 
     final JpaTransactionManager transactionManager = 
      new JpaTransactionManager(); 

     transactionManager.setEntityManagerFactory(entityManagerFactory().getObject()); 

     return transactionManager; 
    } 

    ... 
} 

spring/datasource.xml:

<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:jdbc="http://www.springframework.org/schema/jdbc" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd 
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.1.xsd 
    http://www.springframework.org/schema/jdbc 
    http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd"> 

    <context:property-placeholder location="classpath:spring/database.properties" /> 

    <beans profile="dev"> 
     <bean id="dataSource" 
      class="org.apache.commons.dbcp.BasicDataSource" 
      destroy-method="close"> 
      <property name="driverClassName" value="${db.driverClassName}" /> 
      <property name="url" value="${db.url}" /> 
      <property name="username" value="${db.username}" /> 
      <property name="password" value="${db.password}" /> 
     </bean> 
    </beans> 

    <beans profile="test"> 
     <jdbc:embedded-database id="dataSource" type="HSQL"> 
      <jdbc:script location="classpath:test-data.sql" /> 
     </jdbc:embedded-database> 
    </beans> 

</beans> 

I ex Attendere che il bean dataSource venga creato dopo l'importazione di datasource.xml ma ho sempre ricevuto questo errore.

TIA

Answer 1

ho trovato causa di errore, si verifica solo quando mi definisco manualmente PersistenceAnnotationBeanPostProcessor:

@Bean 
    public PersistenceAnnotationBeanPostProcessor persistenceAnnotationBeanPostProcessor() { 
      // enable injection of EntityManager to beans with @PersistenceContext annotation 
      return new PersistenceAnnotationBeanPostProcessor(); 
    } 

Mi dispiace perché non postato codice completo nella mia domanda (perché ho supposto che questo fagiolo non lo fa importa). Quando ho rimosso questa definizione, tutto funziona come previsto. Inoltre ho trovato che nel mio caso questo fagiolo già registrato:

Note: A default PersistenceAnnotationBeanPostProcessor will be registered by the "context:annotation-config" and "context:component-scan" XML tags. Remove or turn off the default annotation configuration there if you intend to specify a custom PersistenceAnnotationBeanPostProcessor bean definition.

(citazione commento da org.springframework.orm/src/main/java/org/springframework/orm/jpa/support/PersistenceAnnotationBeanPostProcessor.java)

Answer 2

So che questo non risponde alla domanda reale, ma perché non definisco le origini dati utilizzando le annotazioni come bene? Ho un setup molto simile che funziona senza XML ma non ho provato a combinare i due approcci.