spring拦截器中使用spring的自动注入

　　需要在spring的拦截器中使用自定义的服务，这要就设计到将服务注入到拦截器中。网上看的情况有两种：

　　1、

 @Configuration
 public class OptPermissionHandlerInterceptor extends HandlerInterceptorAdapter {
   private Logger logger = LoggerFactory.getLogger(OptPermissionHandlerInterceptor.class); 

   @Autowired
   private OperatorLogService operatorLogService; //这里使用@Autowired无法注入成功 

   @Override
   public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws      Exception {
         if (true) {
             return true;
         } else {
             String result = "当前登录用户无权限！";
             response.getOutputStream().write(result.getBytes());
             response.setStatus(HttpStatus.OK.value());
             return false;
         }
   } 

   @SuppressWarnings("rawtypes")
   @Override
   public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
     try {
       if (handler instanceof HandlerMethod) {
            HandlerMethod handlerMethod = (HandlerMethod) handler;
            String beanName = handlerMethod.getBean().getClass().toString();
            String methodName = handlerMethod.getMethod().getName();
            String uri = request.getRequestURI();
            String remoteAddr = request.getRemoteAddr();
            String sessionId = request.getSession().getId(); 

            OperatorLog optLog = new OperatorLog();
            optLog.setBeanName(beanName);
            optLog.setMethodName(methodName);
            optLog.setRemoteAddr(remoteAddr);
            optLog.setSessionId(sessionId);
            optLog.setUri(uri); 

       if (operatorLogService == null) {//解决service为null无法注入问题
          System.out.println("operatorLogService is null!!!");
          BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getServletContext());
          operatorLogService = (OperatorLogService) factory.getBean("operatorLogService");
       }
       operatorLogService.saveOperatorLog(optLog);
      }
    } catch (Exception e) {
        logger.error("", e);
    }
   } 

   @Override
   public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
       Exception ex) throws Exception {

   } 

 }

　　2、

 @Override
     public void addInterceptors(InterceptorRegistry registry) {
         registry.addInterceptor(sessionInterceptor())
                 .addPathPatterns("/**")
                 .excludePathPatterns( "/push/**");
         super.addInterceptors(registry);
     }

 @Bean
     public SessionInterceptor sessionInterceptor() {
         return new SessionInterceptor();
     }

　　第二种的方式中 sessionInterceptor类中也可以使用：@Configuration，总之就是需要让spring进行管理。