如何在spring cloud gateway中设置超时？

Question

如何在spring cloud gateway中设置time-out？

routeLocatorBuilder.routes()
        .route("test-api", r -> r.path("/api/**")).uri(apiLb))
        .route("test-doc", r -> r.path("/doc/**")).uri(docLb));

有没有办法为ROUTE - doc 设置一个超时时间。

Answer 1

引用自spring doc

设置global time-out

spring:
  cloud:
    gateway:
      httpclient:
        connect-timeout: 1000
        response-timeout: 5s

每条路由超时：-

  - id: per_route_timeouts
    uri: https://example.org
    predicates:
      - name: Path
        args:
          pattern: /delay/{timeout}
    metadata:
      response-timeout: 200
      connect-timeout: 200

在 Java 中：

import static org.springframework.cloud.gateway.support.RouteMetadataUtils.CONNECT_TIMEOUT_ATTR;
import static org.springframework.cloud.gateway.support.RouteMetadataUtils.RESPONSE_TIMEOUT_ATTR;

      @Bean
      public RouteLocator customRouteLocator(RouteLocatorBuilder routeBuilder){
         return routeBuilder.routes()
               .route("test1", r -> {
                  return r.host("*.somehost.org").and().path("/somepath")
                        .filters(f -> f.addRequestHeader("header1", "header-value-1"))
                        .uri("http://someuri")
                        .metadata(RESPONSE_TIMEOUT_ATTR, 200)
                        .metadata(CONNECT_TIMEOUT_ATTR, 200);
               })
               .build();
      }

Answer 2

接受的答案有效如果您没有使用 R4J 断路器或时间限制器...但如果您这样做，上述设置将不足，实际上将被 R4J 设置覆盖。讨论了here 和here，在撰写本文时可以找到当前的解决方法here...基本上，您编写一个自定义 bean，以便它遵循配置设置：

@Bean
public ReactiveResilience4JCircuitBreakerFactory reactiveResilience4JCircuitBreakerFactory(final CircuitBreakerRegistry circuitBreakerRegistry, final TimeLimiterRegistry timeLimiterRegistry) {
        ReactiveResilience4JCircuitBreakerFactory reactiveResilience4JCircuitBreakerFactory = new ReactiveResilience4JCircuitBreakerFactory();
reactiveResilience4JCircuitBreakerFactory.configureCircuitBreakerRegistry(circuitBreakerRegistry);
        reactiveResilience4JCircuitBreakerFactory.configureDefault(id -> {
            CircuitBreakerConfig circuitBreakerConfig = circuitBreakerRegistry.find(id).isPresent() ? circuitBreakerRegistry.find(id).get().getCircuitBreakerConfig()
                    : circuitBreakerRegistry.getDefaultConfig();
            TimeLimiterConfig timeLimiterConfig = timeLimiterRegistry.find(id).isPresent() ? timeLimiterRegistry.find(id).get().getTimeLimiterConfig()
                    : timeLimiterRegistry.getDefaultConfig();

            return new Resilience4JConfigBuilder(id)
                    .circuitBreakerConfig(circuitBreakerConfig)
                    .timeLimiterConfig(timeLimiterConfig)
                    .build();
        });
        return reactiveResilience4JCircuitBreakerFactory;
}