springCloud熔断怎么使用？

1.开启熔断

# 开启熔断
feign.hystrix.enabled=true

2.feign客户端

@FeignClient(name = "java-xiaoliu-support",fallback = ChannelFeignClientFallback.class)
public interface ChannelFeignClient {

}

3.降级类

@Component
public class ChannelFeignClientFallback implements ChannelFeignClient{

}

降级类一定要注入。即可