如何防止 spring boot gateway 转发到链中的最后一个元素

Question

我正在使用 springboot 网关在我的微服务之间进行负载均衡请求

spring:
  application:
    name: gateway-service  
  cloud:
    gateway:
      routes:
      - id: baeldung
        uri: question.com/questions/444/ask
      - id: myOtherRouting
        uri:  answer.com/answers/333/answer

我的问题是，如果我发送了错误的请求，例如 "question.com/questions/dasldkjasdas" 然后请求被转发到 answer.com/answers/333/answer 因为这是我配置中的最后一条链，我该如何防止这种情况，并发送 notfound 状态码作为响应。我用了

filters:
            - SetStatus=NOT_FOUND

https://cloud.spring.io/spring-cloud-static/spring-cloud-gateway/2.2.0.RELEASE/reference/html/#setstatus-gatewayfilter-factory

但这不是我认为最好的方法。

Answer 1

您没有为您的 route 定义指定任何 predicate - 这意味着它们都匹配任何传入的请求。来自 Spring Cloud Gateway:

Clients make requests to Spring Cloud Gateway. If the Gateway Handler Mapping determines that a request matches a Route, it is sent to the Gateway Web Handler.

和

Route: Route the basic building block of the gateway. It is defined by an ID, a destination URI, a collection of predicates and a collection of filters. A route is matched if aggregate predicate is true.

由于您没有指定任何 predicate - 您的路线与传入请求相匹配，最后一个获胜。

如何防止 spring boot gateway 转发到链中的最后一个元素

How to prevent springboot gateway to forward to last element in the chain

spring-boot

spring-cloud-gateway