默认配置
要为所有断路器提供默认配置,可以创建一个 Customizer bean,并将其传递给 Resilience4JCircuitBreakerFactory 或 ReactiveResilience4JCircuitBreakerFactory。可以使用 configureDefault 方法来提供默认配置。
@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
如果你想配置执行断路器的 ExecutorService,你可以使用 Resilience4JCircuitBreakerFactory 来实现。
例如,如果你想使用一个上下文感知的 ExecutorService,你可以执行以下操作。
@Bean
public Customizer<ReactiveResilience4JCircuitBreakerFactory> defaultCustomizer() {
	return factory -> {
		ContextAwareScheduledThreadPoolExecutor executor = ContextAwareScheduledThreadPoolExecutor.newScheduledThreadPool().corePoolSize(5)
			.build();
		factory.configureExecutorService(executor);
	};
}