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。

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