默认配置

要为所有断路器提供默认配置，请创建一个 Customizer Bean，并传入一个 Resilience4JCircuitBreakerFactory 或 ReactiveResilience4JCircuitBreakerFactory。可以通过 configureDefault 方法来提供默认配置。spring-doc.cadn.net.cn

@Bean
public Customizer<Resilience4JCircuitBreakerFactory> defaultCustomizer() {
	return factory -> factory.configureDefault(id -> new Resilience4JConfigBuilder(id)
			.timeLimiterConfig(TimeLimiterConfig.custom().timeoutDuration(Duration.ofSeconds(4)).build())
			.circuitBreakerConfig(CircuitBreakerConfig.ofDefaults())
			.build());
}

响应式示例

@Bean
public Customizer<ReactiveResilience4JCircuitBreakerFactory> defaultCustomizer() {
	return factory -> factory.configureDefault(id -> new Resilience4JConfigBuilder(id)
			.circuitBreakerConfig(CircuitBreakerConfig.ofDefaults())
			.timeLimiterConfig(TimeLimiterConfig.custom().timeoutDuration(Duration.ofSeconds(4)).build()).build());
}

自定义 ExecutorService

如果您希望配置执行断路器的 ExecutorService，可以使用 Resilience4JCircuitBreakerFactory 进行配置。spring-doc.cadn.net.cn

例如，如果您希望使用一个上下文感知的 ExecutorService，您可以执行以下操作。spring-doc.cadn.net.cn

@Bean
public Customizer<Resilience4JCircuitBreakerFactory> defaultCustomizer() {
	return factory -> {
		ContextAwareScheduledThreadPoolExecutor executor = ContextAwareScheduledThreadPoolExecutor.newScheduledThreadPool().corePoolSize(5)
			.build();
		factory.configureExecutorService(executor);
	};
}