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。