登录校验 简单实现

public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
    ServerHttpRequest request = exchange.getRequest();
    ServerHttpResponse response = exchange.getResponse();
    //判断是否为登录
    if (request.getURI().getPath().contains("login/in")){
//放行
        return chain.filter(exchange);
    }
    HttpHeaders headers = request.getHeaders();
    String token = headers.getFirst("token");
    //拿到token 判断是否为空 为空返回客户端
    if (StringUtils.isEmpty(token)){
        response.setStatusCode(HttpStatus.UNAUTHORIZED);
        return response.setComplete();
    }
    Claims claims = AppJwtUtil.getClaimsBody(token);
    int result = AppJwtUtil.verifyToken(claims);
    try {
        //校验token  是否有效
        if (result == 0 || result == -1){
            Integer id = (Integer) claims.get("id");
            log.info("find user_id:{} form uri:{}",id,request.getURI());
            ServerHttpRequest serverHttpRequest = request.mutate().headers(httpHeaders -> {
                httpHeaders.add("userId", id + "");
            }).build();
            exchange.mutate().request(serverHttpRequest).build();

        }
    } catch (Exception e) {
        e.printStackTrace();
        response.setStatusCode(HttpStatus.UNAUTHORIZED);
        return response.setComplete();
    }


    return chain.filter(exchange);
}