Spring云网关禁止未经验证的请求

Question

我在spring cloud gateway中实现了自定义预过滤器，它允许经过身份验证的请求通过下游流程。我想要的是，如果请求是未经身份验证的，然后返回401未授权状态的响应，并停止下游处理。我可以实现这个Spring云网关。

请帮忙。

public class ValidUserFilter implements GatewayFilterFactory {

  @Override
  public GatewayFilter apply(Object config) {
    return (exchange, chain) -> {
      ServerHttpRequest request = exchange.getRequest();

      if (isValidRequest(request)) {
        // Allow processing
      } else {
      // set UNAUTHORIZED 401 response and stop the processing
      }

      return chain.filter(exchange);
    };
  }
}

和配置如下：

  - id: myroute
            uri: http://localhost:8080/bar
            predicates:
            - Path=/foo/**
            filters:
            - ValidUserFilter

Answer 1

参见SetStatusGatewayFilterFactory中的代码

// set UNAUTHORIZED 401 response and stop the processing
exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);
return exchange.getResponse().setComplete();