spring boot如何使用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