结合源码分析 Spring 容器与 SpringMVC 容器之间的关系

问题

问题描述：项目中发现，自定义切面注解在 Controller 层正常工作，在 Service 层却无法正常工作。为了便于分析，去掉代码中的业务逻辑，只留下场景。

自定义注解，打印时间

/**
 * Description: 自定义打印时间的注解
 * Created by jiangwang3 on 2018/5/9.
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD})
@Documented
public @interface PrintTime {
}

注解解析器

/**
 *Description:打印时间注解的解析器
 * @author jiangwang
 * @date 11:28 2018/5/14
 */
@Aspect
public class PrintTimeProcessor {
    private Logger LOGGER = LoggerFactory.getLogger(getClass());
    @Pointcut("@annotation(com.foo.service.annotation.PrintTime)")
    public void printTimePoint() {
    }
    @Around("printTimePoint()")
    public Object process(ProceedingJoinPoint jp) throws Throwable{
        System.out.println();
        LOGGER.error("开始运行程序。。。Start==>");
        Object proceed = jp.proceed();
        LOGGER.error("结束啦，运行结束==>");
        System.out.println();
        return proceed;
    }
}

Controller层

/**
 * @author jiangwang
 * @date  2018/5/14
 */
@RestController
@RequestMapping(value = "/user")
public class UserController {
    private Logger logger = LoggerFactory.getLogger(getClass());
    @Resource
    private UserService userService;
    @RequestMapping(value = "/serviceAspect", method={RequestMethod.GET})
    public  String serviceAspect(){
        return userService.serviceAspect();
    }
    @RequestMapping(value = "/controllerAspect", method={RequestMethod.GET})
    @PrintTime
    public  String name(){
        logger.info("Controller层----测试切面");
        return "controllerAspect";
    }
}

Service层

/**
 * @author jiangwang
 * @date 11:34 2018/5/14
 */
@Service
public class UserService {
    private Logger logger = LoggerFactory.getLogger(getClass())
    @PrintTime
    public String serviceAspect(){
        logger.info("Service层---测试切面");
        return "serviceAspect";
    }
}

spring.xml 配置文件，主要部分

<context:annotation-config />
<!-- 动态代理开启 -->
<aop:aspectj-autoproxy proxy-target-class="true" />
<context:component-scan base-package="com.foo" >
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 公共配置引入 -->
<import resource="classpath:spring/spring-config-dao.xml" />

springmvc.xml 配置文件，主要部分

<mvc:annotation-driven />
<mvc:default-servlet-handler />
<!-- 动态代理开启 -->
<aop:aspectj-autoproxy proxy-target-class="true" />
<!-- mvc controller -->
<context:component-scan base-package="com.foo.web.controller" use-default-filters="false">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" />
</context:component-scan>
<bean class="com.foo.service.processor.PrintTimeProcessor"/>

以上为主要代码。项目运行之后，发现在 Service 层的注解切面未生效，而在 Controller 层正常。而当我将 springmvc.xml 中的