spring扫描到了 为啥没有进行自动装配 报空

Question

ApplicationContext factory=new ClassPathXmlApplicationContext("classpath:applicationContext.xml");  String[] s = factory.getBeanDefinitionNames(); for(String ss:s){ System.out.println(ss); }userServiceImpluserControlleruserDaoImplorg.springframework.context.annotation.internalConfigurationAnnotationProcessororg.springframework.context.annotation.internalAutowiredAnnotationProcessororg.springframework.context.annotation.internalRequiredAnnotationProcessororg.springframework.context.annotation.internalCommonAnnotationProcessororg.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor#0org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessororg.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor @Autowired private IUserService userService; public void say(){ userService.say(); }

Answer 1

@Autowired是按类型

@Resource是根据名字，你看是不是你有重复的类，或者是名字不是首字母小写，