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我有一个标准的bean，需要自动装配一些属性。Spring Spring Autowire在BeanFactoryPostProcessor中创建的bean
@Service
public class MyServiceImpl implements MyService {
@Autowired
private FirstRepository first;
public MyServiceImpl() {
}
我使用Java配置找到豆：
@Configuration
@ComponentScan(basePackages = "com.company", excludeFilters = { @Filter(Configuration.class) })
public class MainConfig {
}
然而，FirstRepository豆不存在，所以我在BeanFactoryPostProcessor的创建：
public class RepoGeneratorPostProcessor implements BeanFactoryPostProcessor {
public void postProcessBeanFactory(
ConfigurableListableBeanFactory beanFactory) throws BeansException {
GenericBeanDefinition jpaR = new GenericBeanDefinition();
jpaR.setBeanClass(JpaRepositoryFactoryBean.class);
jpaR.setAutowireCandidate(true);
jpaR.setAutowireMode(GenericBeanDefinition.AUTOWIRE_BY_TYPE);
jpaR.setLazyInit(false);
jpaR.setPropertyValues(new MutablePropertyValues().add("repositoryInterface", FirstRepository.class));
RootBeanDefinition definition = new RootBeanDefinition();
definition.setBeanClass(FirstRepository.class);
definition.setAutowireCandidate(true);
definition.setFactoryBeanName("&jpaR");
definition.setFactoryMethodName("getObject");
definition.setAutowireMode(GenericBeanDefinition.AUTOWIRE_BY_NAME);
definition.setLazyInit(false);
definition.setAttribute(RequiredAnnotationBeanPostProcessor.SKIP_REQUIRED_CHECK_ATTRIBUTE, Boolean.TRUE);
BeanDefinitionRegistry registry = (BeanDefinitionRegistry)beanFactory;
registry.registerBeanDefinition("jpaR", jpaR);
registry.registerBeanDefinition("first", definition);
}
当我启动我的应用程序我得到以下异常，似乎表明Spring无法找到FirstRepository bean。
org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.company.FirstRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency.
如果我删除@Autowired注释，我可以看到启动后FirstRepository bean已正确创建。
有什么建议吗？
对不起，如果我不清楚。问题的关键是必须在BeanFactoryPostProcessor中创建bean。它不能被添加到application-context.xml中。 – dough