当我使用经典的上下文加载在Eclipse上运行我的应用程序时,不用担心,所选择的Spring Profile对应的配置类上的bean定义是正确的.
public class BasketHandlerLoader { public static void main(String[] args) throws Exception { @SuppressWarnings("resource") ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath:config/spring/spring-archibald-basket-handler-context.xml"); context.registerShutdownHook(); } }
但是,当我使用Spring Boot运行应用程序时,这些bean不会实例化.
@Configuration @ImportResource("classpath:config/spring/spring-archibald-basket-handler-context.xml") public class BasketHandlerLoader { public static void main(String[] args) throws Exception { SpringApplication.run(BasketHandlerLoader.class, args); } }
这是"dev"Spring配置文件的java配置类:
@Configuration @Profile("dev") @EnableTransactionManagement @PropertySources(value = { @PropertySource("classpath:filters/dev.properties") }) public class DevPersistenceConfig extends AbstractPersistenceConfig { @Inject private Environment env; @Override @Bean public DataSource dataSource() { return super.createDataSource(env); } @Override public Properties hibernateProperties() { return super.createHibernateProperties(env); } }
这里包含其他未实例化的bean 的AbstractPersistenceConfig类:
public abstract class AbstractPersistenceConfig { // Constants... // ************************** ABSTRACT METHODS ************************** /** * Returns a property list containing the Hibernate properties. * * @return the Hibernate properties. */ public abstract Properties hibernateProperties(); /** * Defines the application datasource bean corresponding with the current Spring Profile. * * @return the application datasource bean corresponding with the current Spring Profile. */ @Bean public abstract DataSource dataSource(); /** * Defines the Hibernate session factory bean. * * @return the {@code LocalSessionFactoryBean}. */ @Bean public LocalSessionFactoryBean sessionFactory() { LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean(); sessionFactory.setDataSource(dataSource()); sessionFactory.setPackagesToScan(new String[] { HIBERNATE_PACKAGE_TO_SCAN }); sessionFactory.setHibernateProperties(hibernateProperties()); return sessionFactory; } /** * Defines the bean allowing to Hibernate to support the transaction handling mechanism. * * @return the {@code HibernateTransactionManager}. */ @Bean public HibernateTransactionManager transactionManager() { HibernateTransactionManager txManager = new HibernateTransactionManager(); txManager.setSessionFactory(sessionFactory().getObject()); return txManager; } // ************************** PROTECTED METHODS ************************** // ... // ************************** PRIVATE METHODS ************************** // ... }
我尝试使用以下命令运行应用程序,结果相同:
java -jar archibald-basket-handler-1.0-SNAPSHOT.jar --spring.profiles.active=dev java -jar -Dspring.profiles.active=dev archibald-basket-handler-1.0-SNAPSHOT.jar
具体来说,bean" sessionFactory "不是实例化的,不能注入我的GenericDaoImpl类......
堆栈跟踪:
java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53) at java.lang.Thread.run(Unknown Source) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'basketDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory fr.ina.archibald.dao.impl.GenericDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.inject.Inject()} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648) at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) at org.springframework.boot.SpringApplication.run(SpringApplication.java:909) at org.springframework.boot.SpringApplication.run(SpringApplication.java:898) at fr.ina.archibald.basket.loader.BasketHandlerLoader.main(BasketHandlerLoader.java:30) ... 6 more Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory fr.ina.archibald.dao.impl.GenericDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.inject.Inject()} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289) ... 21 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.inject.Inject()} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1103) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:963) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480) ... 23 more
我使用没有Spring Boot父POM的Spring Boot 1.0.2.RELEASE.我只是在POM上定义了这个:
org.springframework.boot spring-boot-dependencies ${org.springframework.boot.version} pom import org.springframework.boot spring-boot-maven-plugin repackage ${start-class} org.springframework.boot spring-boot-starter-integration ${org.springframework.boot.version}
你有什么想法吗?
非常感谢!!
我认为你需要@Import
你的@Configuration
类直接或使用@ComponentScan
注解.您使用的初始示例ClassPathXmlApplicationContext
将起作用,因为XML处理提前发生,并且<component-scan>
将@Configuration
在处理之前找到您的类.
第二个示例SpringApplication
已经开始处理您的@Configuration
类,并通过加载XML @ImportResource
.到目前为止,XML <component-scan>
无法添加更多内容@Configuration
.
排序答案:试试@ComonentScan
你的BasketHandlerLoader
课程.