1、pom

    1.         <!--SpringCloud openfeign -->
    2.         <dependency>
    3.             <groupId>org.springframework.cloud</groupId>
    4.             <artifactId>spring-cloud-starter-openfeign</artifactId>
    5.         </dependency>

    2、Yml
    对openFeign进行激活

    1. # 激活Sentinel对Feign的支持
    2. feign:
    3.   sentinel:
    4.     enabled: true

    3、主启动类
    image.png