@Slf4j
@WebFilter(filterName = "authFilter", urlPatterns = "/*")
@Order(1) //测试好像这个参数不生效，实际生效的是Filter扫描到的顺序（所以起名很重要）
public class AuthFilter implements Filter {@Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {log.debug("start to auth request validate...111");HttpServletRequest req = (HttpServletRequest) request;String token = req.getHeader("token");if (token != null) {//    :TODO check tokenlog.info("auth success");chain.doFilter(request, response);} else {log.err("auth failed");}}
}

@Slf4j
@EnableScheduling
@ServletComponentScan(basePackages = {"com.sanro.filter"}) //这一句完成了配置，Springboot的”懒理念“真的厉害。
@SpringBootApplication
public class Application {public static void main(String[] args) {SpringApplication.run(Application.class, args);log.debug("rest server start success.");}
}

@Slf4j
@Component
public class AuthFilter implements Filter {@Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {log.debug("start to auth request validate...111");HttpServletRequest req = (HttpServletRequest) request;String token = req.getHeader("token");if (token != null) {//    :TODO check tokenlog.info("auth success");chain.doFilter(request, response);} else {log.err("auth failed");}}
}

@Configuration
public class FilterConfig {@Autowiredprivate AuthFilter authFilter;@Beanpublic FilterRegistrationBean registerAuthFilter() {FilterRegistrationBean registration = new FilterRegistrationBean();registration.setFilter(authFilter);registration.addUrlPatterns("/*");registration.setName("authFilter");registration.setOrder(1);  //值越小，Filter越靠前。return registration;}//如果有多个Filter，再写一个public FilterRegistrationBean registerOtherFilter(){...}即可。
}