请使用 Spring-Cloud-CircuitBreaker 5.0.1 获取最新稳定版本！spring-doc.cadn.net.cn

特定的熔断器配置

类似于提供默认配置，您可以创建一个 Customizer Bean，该 Bean 接收一个 Resilience4JCircuitBreakerFactory 或 ReactiveResilience4JCircuitBreakerFactory。spring-doc.cadn.net.cn

@Bean
public Customizer<Resilience4JCircuitBreakerFactory> slowCustomizer() {
	return factory -> factory.configure(builder -> builder.circuitBreakerConfig(CircuitBreakerConfig.ofDefaults())
			.timeLimiterConfig(TimeLimiterConfig.custom().timeoutDuration(Duration.ofSeconds(2)).build()), "slow");
}

除了配置所创建的断路器外，您还可以在断路器创建完成后、返回调用方之前对其进行自定义。要实现这一点，您可以使用 addCircuitBreakerCustomizer 方法。这有助于为 Resilience4J 断路器添加事件处理器。spring-doc.cadn.net.cn

@Bean
public Customizer<Resilience4JCircuitBreakerFactory> slowCustomizer() {
	return factory -> factory.addCircuitBreakerCustomizer(circuitBreaker -> circuitBreaker.getEventPublisher()
	.onError(normalFluxErrorConsumer).onSuccess(normalFluxSuccessConsumer), "normalflux");
}

如果需要将安全上下文传播到断路器，则必须配置断路器以使用 DelegatingSecurityContextExecutorService。spring-doc.cadn.net.cn

@Bean
public Customizer<Resilience4JCircuitBreakerFactory> groupExecutorServiceCustomizer() {
	return factory -> factory.configureGroupExecutorService(group -> new DelegatingSecurityContextExecutorService(Executors.newVirtualThreadPerTaskExecutor()));
}

响应式示例

@Bean
public Customizer<ReactiveResilience4JCircuitBreakerFactory> slowCustomizer() {
	return factory -> {
		factory.configure(builder -> builder
		.timeLimiterConfig(TimeLimiterConfig.custom().timeoutDuration(Duration.ofSeconds(2)).build())
		.circuitBreakerConfig(CircuitBreakerConfig.ofDefaults()), "slow", "slowflux");
		factory.addCircuitBreakerCustomizer(circuitBreaker -> circuitBreaker.getEventPublisher()
        	.onError(normalFluxErrorConsumer).onSuccess(normalFluxSuccessConsumer), "normalflux");
     };
}