添加gateway依赖

        <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId></dependency>

创建一个tokenFilter

实现全局过滤器GlobalFilter,并且实现fitler方法

@Value("${cn.token.key}")private String tokenKey;public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {ServerHttpResponse response = exchange.getResponse();List<String> tokens = exchange.getRequest().getHeaders().get("token");if(ObjectUtil.isEmpty(tokens)){log.debug("请传输token");response.setStatusCode(HttpStatus.PAYMENT_REQUIRED);return response.setComplete();}String token = tokens.get(0);if(ObjectUtil.isEmpty(token)){log.debug("token不能为空");response.setStatusCode(HttpStatus.PAYMENT_REQUIRED);return response.setComplete();}boolean b = false;try {//利用jwt对token进行验证JWTValidator.of(token).validateAlgorithm(JWTSignerUtil.hs256(tokenKey.getBytes())).validateDate();b = true;}catch (Exception ex){ex.printStackTrace();log.error("token不正确");}if(!b){response.setStatusCode(HttpStatus.UNAUTHORIZED);return response.setComplete();}return chain.filter(exchange);}