Spring Cloud怎么集成resilience4j提供的熔断器

Spring Cloud可以通过集成Spring Cloud Circuit Breaker 实现与Resilience4j的整合。以下是一个简单的例子，展示如何在Spring Cloud应用中集成Resilience4j提供的断路器。

1. 在pom.xml中添加依赖：

<dependencies>
    <!-- Spring Cloud Circuit Breaker with Resilience4j -->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-circuitbreaker-reactor-resilience4j</artifactId>
    </dependency>
    <!-- 其他依赖 -->
</dependencies>

2. 在application.yml或application.properties中配置Resilience4j的断路器：

spring:
  cloud:
    circuit:
      breaker:
        resilience4j:
          configs:
            default:
              sliding-window-size: 100
              sliding-window-type: TIME_BASED
              minimum-number-of-calls: 100
              wait-duration-in-open-state: 60000
             PermittedNumberOfCallsInHalfOpenState: 
              failure-rate-threshold: 50
              event-consumer-buffer-size: 100

3. 使用@Resilience4JCircuitBreaker注解来标注需要应用断路器的服务方法：

import io.github.resilience4j.circuitbreaker.annotation.CircuitBreakerConfig;
import org.springframework.cloud.circuitbreaker.resilience4j.ReactiveResilience4JCircuitBreakerFactory;
import org.springframework.cloud.circuitbreaker.resilience4j.Resilience4JConfigBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
public class CircuitBreakerConfig {
 
    @Bean
    public CircuitBreakerConfig circuitBreakerConfig() {
        return new CircuitBreakerConfigBuilder()
                .slidingWindowSize(100)
                .slidingWindowType(SlidingWindowType.TIME_BASED)
                .minimumNumberOfCalls(100)
                .waitDurationInOpenState(60000)
                .permittedNumberOfCallsInHalfOpenState(20)
                .failureRateThreshold(50)
                .eventConsumerBufferSize(100)
                .build();
    }
}
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
 
@RestController
public class ServiceController {
 
    @A