原因:因为现在比较新的版本(Feign或者gateway)都不用Ribbon,用spring-cloud-loadblance,并且默认不集成 需要导入依赖

解决：导入feign和loadbalancer依赖就行了

        <!--fegin组件-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <!-- Feign Client for loadBalancing -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-loadbalancer</artifactId>
        </dependency>

 

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