Java – spring 3.1: datasource is not automatically connected to the @ configuration class
I am using spring MVC 3.1 0m2 and try to move my configuration to java bean But I encountered the following errors:
From the web XML Mapping:
<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 want to import datasource Create bean datasource after XML, but I always encounter this error
TIA
Solution
I found the cause of the error. The error occurs only when I manually define the persistenceannotationbeanpostprocessor:
@Bean
public PersistenceAnnotationBeanPostProcessor persistenceAnnotationBeanPostProcessor() {
// enable injection of EntityManager to beans with @PersistenceContext annotation
return new PersistenceAnnotationBeanPostProcessor();
}
Sorry, because I didn't release the complete code in the problem (because I think this bean doesn't matter) When I delete this definition, everything works as expected In addition, I found that in my case, this bean has been registered:
(quoted from the comments of org.springframework.orm/src/main/java/org/springframework/orm/jpa/support/persistenceannotationbeanpostprocessor.java)
