Spring 3.1:DataSource未自动装配到@Configuration类
我正在使用Spring MVC 3.1.0M2并尝试将我的配置移动到java bean。 但我遇到以下错误:
2011-09-14 18:43:42.301:警告:/:不可用org.springframework.beans.factory.BeanCreationException:使用名称'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration#0'创建bean时出错:注入自动装配依赖项失败; 嵌套异常是org.springframework.beans.factory.BeanCreationException:无法自动装配方法:void org.springframework.transaction.annotation.AbstractTransactionManagementConfiguration.setConfigurers(java.util.Collection); 嵌套异常是org.springframework.beans.factory.BeanCreationException:在类ru.mystamps.web.config.DbConfig中定义名称为'entityManagerFactory'的bean时出错:bean的实例化失败; 嵌套异常是org.springframework.beans.factory.BeanDefinitionStoreException:工厂方法[public org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean ru.mystamps.web.config.DbConfig.entityManagerFactory()]抛出异常; 嵌套异常是java.lang.IllegalArgumentException:DataSource不能为null
从web.xml
映射:
<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>
我预计豆dataSource
将导入后创建datasource.xml
但我总是得到这个错误。
TIA
我发现错误的原因,它只发生在我手动定义PersistenceAnnotationBeanPostProcessor
:
@Bean
public PersistenceAnnotationBeanPostProcessor persistenceAnnotationBeanPostProcessor() {
// enable injection of EntityManager to beans with @PersistenceContext annotation
return new PersistenceAnnotationBeanPostProcessor();
}
我很抱歉,因为我没有在问题中发布完整的代码(因为我认为这个bean并不重要)。 当我删除这个定义时,一切都按预期工作。 另外我发现在我的情况下,这个bean已经被注册了:
注意:默认的PersistenceAnnotationBeanPostProcessor将由“context:annotation-config”和“context:component-scan”XML标签注册。 如果您打算指定自定义的PersistenceAnnotationBeanPostProcessor bean定义,请删除或关闭默认注释配置。
(引用来自org.springframework.orm/src/main/java/org/springframework/orm/jpa/support/PersistenceAnnotationBeanPostProcessor.java
)
我知道这并不回答实际问题,但为什么不使用注释来定义数据源呢? 我有一个非常类似的设置工作,不使用XML,但没有尝试将这两种方法结合起来。
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