网关GateWay

@Order(-1)
@Component
public class AuthorizeFilter implements GlobalFilter {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        // 1.获取请求参数
        ServerHttpRequest request = exchange.getRequest();
        MultiValueMap<String, String> queryParams = request.getQueryParams();
        // 2.获取参数中的authorization参数
        String auth = queryParams.getFirst("authorization");
        // 3.判断参数值是否等于admin
        if ("admin".equals(auth)) {
            // 4.是，放行
            return chain.filter(exchange);
        }
        // 5.否，拦截
        // 5.1 设置状态码
        exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);
        // 5.2 拦截请求
        return exchange.getResponse().setComplete();
    }
}