gateway自定义filter

gateway有很多自带的filter和自带的global filter

这里我们自定义一个filter

官方文档这样的：

 

 模仿写一个：

@Slf4j
public class MyLogGatewayFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        String username = exchange.getRequest().getQueryParams().getFirst("username");
        if(!"shi".equals(username)) {
            log.info("---username illegal---");
            exchange.getResponse().setStatusCode(HttpStatus.BAD_REQUEST);
            return exchange.getResponse().setComplete();
        }
        log.info("---username legal----");
        return chain.filter(exchange);
    }
    @Override
    public int getOrder() {
        return 0;
    }
}

@Configuration
public class GatewayConfig {
    @Bean
    public MyLogGatewayFilter getFilter() {
        return new MyLogGatewayFilter();
    }
}

测试：