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并未实现。
@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"的java配置类。春季简介:
@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);
}
}
此处 AbstractPersistenceConfig 类包含其他未实例化的bean:
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......
stacktrace:
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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 23 more
我使用没有Spring Boot父POM的Spring Boot 1.0.2.RELEASE。我只是在POM上定义了这个:
<dependencyManagement>
<dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${org.springframework.boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencyManagement>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>${start-class}</mainClass>
</configuration>
</plugin>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-integration</artifactId>
<version>${org.springframework.boot.version}</version>
</dependency>
你有什么想法吗?
非常感谢!!
答案 0 :(得分:8)
我认为您需要直接@Import
@Configuration
课程或使用@ComponentScan
注释。您使用ClassPathXmlApplicationContext
的初始示例将起作用,因为XML处理过早发生,<component-scan>
将在处理之前找到您的@Configuration
类。
第二个示例SpringApplication
已经开始处理您的@Configuration
类,并且通过@ImportResource
加载XML。到目前为止,XML <component-scan>
无法添加更多@Configuration
。
排序答案:在@ComonentScan
课程上尝试BasketHandlerLoader
。
答案 1 :(得分:0)
大!!!有用! 非常感谢Phil(解决方案和解释!): - )
@Configuration
@ImportResource("classpath:config/spring/spring-archibald-basket-handler-context.xml")
@ComponentScan(basePackages = { "fr.ina.archibald.dao.config.persistence" }, includeFilters = @ComponentScan.Filter(value = Component.class, type = FilterType.ANNOTATION))
public class BasketHandlerLoader {
public static void main(String[] args) throws Exception {
SpringApplication.run(BasketHandlerLoader.class, args);
}
}