对应的依赖

org.springframework.cloud

spring-cloud-starter-openfeign

com.alibaba.cloud

spring-cloud-starter-alibaba-sentinel

还要定义版本

/**

1. remarkclinet降级类

*/

public class RemarkClientFallBack implements FallbackFactory {

@Override

public RemarkClient create(Throwable cause) {

return null;

}

}

需要实现FallbackFactory接口

还要配置config才能其他模块都加载