springboot 拦截器aop spring boot怎样使用spring AOP实现拦截器

<dependency> 
  <groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-aop</artifactId> 
</dependency> 

/** 
 * 拦截器：记录用户操作日志，检查用户是否登录…… 
 * @author XuJijun 
 */ 
@Aspect 
@Component 
public class ControllerInterceptor { 
  private static final Logger logger = LoggerFactory.getLogger(ControllerInterceptor.class); 
   
  @Value("${spring.profiles}") 
  private String env; 
   
  /** 
   * 定义拦截规则：拦截com.xjj.web.controller包下面的所有类中，有@RequestMapping注解的方法。 
   */ 
  @Pointcut("execution(* com.xjj.web.controller..*(..)) and @annotation(org.springframework.web.bind.annotation.RequestMapping)") 
  public void controllerMethodPointcut(){} 
   
  /** 
   * 拦截器具体实现 
   * @param pjp 
   * @return JsonResult（被拦截方法的执行结果，或需要登录的错误提示。） 
   */ 
  @Around("controllerMethodPointcut()") //指定拦截器规则；也可以直接把“execution(* com.xjj.........)”写进这里 
  public Object Interceptor(ProceedingJoinPoint pjp){ 
    long beginTime = System.currentTimeMillis(); 
    MethodSignature signature = (MethodSignature) pjp.getSignature(); 
    Method method = signature.getMethod(); //获取被拦截的方法 
    String methodName = method.getName(); //获取被拦截的方法名 
     
    Set<Object> allParams = new LinkedHashSet<>(); //保存所有请求参数，用于输出到日志中 
     
    logger.info("请求开始，方法：{}", methodName); 
     
    Object result = null; 
 
    Object[] args = pjp.getArgs(); 
    for(Object arg : args){ 
      //logger.debug("arg: {}", arg); 
      if (arg instanceof Map<?, ?>) { 
        //提取方法中的MAP参数，用于记录进日志中 
        @SuppressWarnings("unchecked") 
        Map<String, Object> map = (Map<String, Object>) arg; 
 
        allParams.add(map); 
      }else if(arg instanceof HttpServletRequest){ 
        HttpServletRequest request = (HttpServletRequest) arg; 
        if(isLoginRequired(method)){ 
          if(!isLogin(request)){ 
            result = new JsonResult(ResultCode.NOT_LOGIN, "该操作需要登录！去登录吗？\n\n（不知道登录账号？请联系老许。）", null); 
          } 
        } 
         
        //获取query string 或 posted form data参数 
        Map<String, String[]> paramMap = request.getParameterMap(); 
        if(paramMap!=null && paramMap.size()>0){ 
          allParams.add(paramMap); 
        } 
      }else if(arg instanceof HttpServletResponse){ 
        //do nothing... 
      }else{ 
        //allParams.add(arg); 
      } 
    } 
     
    try { 
      if(result == null){ 
        // 一切正常的情况下，继续执行被拦截的方法 
        result = pjp.proceed(); 
      } 
    } catch (Throwable e) { 
      logger.info("exception: ", e); 
      result = new JsonResult(ResultCode.EXCEPTION, "发生异常："+e.getMessage()); 
    } 
     
    if(result instanceof JsonResult){ 
      long costMs = System.currentTimeMillis() - beginTime; 
      logger.info("{}请求结束，耗时：{}ms", methodName, costMs); 
    } 
     
    return result; 
  } 
   
  /** 
   * 判断一个方法是否需要登录 
   * @param method 
   * @return 
   */ 
  private boolean isLoginRequired(Method method){ 
    if(!env.equals("prod")){ //只有生产环境才需要登录 
      return false; 
    } 
     
    boolean result = true; 
    if(method.isAnnotationPresent(Permission.class)){ 
      result = method.getAnnotation(Permission.class).loginReqired(); 
    } 
     
    return result; 
  } 
   
  //判断是否已经登录 
  private boolean isLogin(HttpServletRequest request) { 
    return true; 
    /*String token = XWebUtils.getCookieByName(request, WebConstants.CookieName.AdminToken); 
    if("1".equals(redisOperator.get(RedisConstants.Prefix.ADMIN_TOKEN+token))){ 
      return true; 
    }else { 
      return false; 
    }*/ 
  } 
} 

2016-07-26 11:58:12,057:INFO http-nio-8082-exec-1 (ControllerInterceptor.java:58) - 请求开始，方法：login 
2016-07-26 11:58:12,061:INFO http-nio-8082-exec-1 (ControllerInterceptor.java:103) - login请求结束，耗时：8ms