注解说明•注册注解处理器•方式一:bean<beanclass="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>•方式二:命名空间<context:annotation-config/><context:annotationconfig/>将隐式地向Spring容器注册AutowiredAnnotationBeanPostProcessor、CommonAnnotationBeanPostProcessor、PersistenceAnnotationBeanPostProcessor以及RequiredAnnotationBeanPostProcessor这4个BeanPostProcessor。•方式三:命名空间<context:component-scan/>如果要使注解工作，则必须配置component-scan，实际上不需要再配置annotation-config。base-package属性指定了需要扫描的类包，类包及其递归子包中所有的类都会被处理。还允许定义过滤器将基包下的某些类纳入或排除。•Spring支持以下4种类型的过滤方式：•注解org.example.SomeAnnotation将所有使用SomeAnnotation注解的类过滤出来•类名指定org.example.SomeClass过滤指定的类•正则表达式com.kedacom.spring.annotation.web..*通过正则表达式过滤一些类•AspectJ表达式org.example..*Service+通过AspectJ表达式过滤一些类•正则表达式的过滤方式举例：<context:component-scanbase-package="com.casheen.spring.annotation"><context:exclude-filtertype="regex"expression="com.casheen.spring.annotation.web..*"/></context:component-scan>•注解的过滤方式举例：<context:component-scanbase-package="com.netqin"><context:include-filtertype="annotation"expression="org.springframework.stereotype.Controller"/><context:include-filtertype="annotation"expression="org.springframework.stereotype.Service"/><context:include-filtertype="annotation"expression="org.springframework.stereotype.Repository"/></context:component-scan>启用SpringMVC注解•启动SpringMVC的注解功能，完成请求和注解POJO的映射•<beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>注解介绍•@Controller•@Service•@Autowired•@RequestMapping•@RequestParam•@ModelAttribute•@Cacheable•@CacheFlush•@Resource•@PostConstruct•@PreDestroy•@Repository•@Component（不推荐使用）•@Scope•@SessionAttributes•@InitBinder•@Required•@Qualifier@Controller•例如@ControllerpublicclassSoftCreateControllerextendsSimpleBaseController{}•或者@Controller("softCreateController")•说明@Controller负责注册一个bean到spring上下文中，bean的ID默认为类名称开头字母小写@Service•例如@ServicepublicclassSoftCreateServiceImplimplementsISoftCreateService{}•或者@Service(